Comprehensive Study Notes: Health Systems and Policy - US, Puerto Rico, and Global Comparative Analysis

Historical Development of the United States Health Delivery System

  • Foundational Core Considerations of System Evolution:

    • Medical Practice and Education: Transitioned from unregulated lay practitioners and proprietary medical schools to a standardized, science-based, licensed profession following the landmark 1910 Flexner Report.

    • The Modern Hospital: Evolved from colonial almshouses (asilos para pobres) meant for indigent housing and isolation into the technological and organizational core of modern clinical care.

    • Public Health Infrastructure: Developed as a parallel governmental apparatus dedicated to urban sanitation, communicable disease control, and population health management.

    • Health Insurance Mechanisms: Shifted focus toward financing structures over direct service delivery through Blue Cross, employer-sponsored health coverage, Medicare, Medicaid, and the Affordable Care Act (ACA).

  • 1620–1850: Colonial Origins and the Domestic Era:

    • Home-Based Care: Families and lay healers provided the vast majority of care; trained physicians were scarce, lacked formal scientific education by modern standards, and frequently accepted payment in kind.

    • Almshouses (Poorhouses): Served as early municipal institutions that isolated the indigent, mentally ill, and contagiously sick. Offered housing and shelter rather than medical cure; represents the institutional predecessor of the modern hospital.

    • Marine Hospital Service (1798): Congress enacted a mandatory payroll tax on sailors' wages to fund port hospitals for merchant seamen, establishing the first federal role in healthcare and laying the groundwork for the modern U.S. Public Health Service.

    • Absence of Professional Licensing: Unregulated entry into medical practice saturated the market, depressing physician social status and income.

  • 1850–1920: Professionalization of Medicine:

    • 1847: Founding of the American Medical Association (AMA), establishing organized professional self-regulation.

    • 1870s and Onward: Acceptance of germ theory and antiseptic procedures dramatically improved surgical survival rates, anchoring clinical practice in empirical science.

    • 1910: Publication of the Flexner Report, which exposed severe deficiencies in proprietary, for-profit medical schools. Approximately 50%50\% of U.S. medical schools closed or merged within two decades, standardizing medical education around university-based laboratory science.

    • 1900s–1920s: Expansion of mandatory state medical licensure; the AMA secured regulatory authority over entry standards, physician supply, and medical education.

    • The Flexner Effect: Restricted medical school supply produced a smaller, higher-status, and significantly more expensive physician workforce.

  • 1870–1945: Emergence of the Modern Hospital:

    • Technological Centralization: Advancements in general anesthesia, antisepsis, X-ray technology (1895), and clinical pathology laboratories established hospitals as the exclusive sites for advanced care.

    • Voluntary Non-Profit Model: Community and religious non-profit hospitals, sustained by philanthropic contributions and patient fee-for-service, established the private non-profit backbone of U.S. hospital care.

    • Hill-Burton Act of 1946 (P.L. 79-725): Provided federal construction grants that expanded hospital beds nationwide with mandatory service obligations, though initially sanctioning racial segregation.

    • Physician-Hospital Separation: Physicians maintained independent admitting privileges rather than direct salaried hospital employment, creating a distinct structural separation between hospital operations and physician practice.

  • 1850–Present: The Parallel Evolution of Public Health:

    • The Sanitary Era: The 1850 Shattuck Report in Massachusetts and urban sanitary engineering drove initial major mortality reductions prior to modern pharmacological cures.

    • Institutionalization: Formalization of the discipline occurred through local and state health departments, the reorganized U.S. Public Health Service (1912), and the establishment of the Centers for Disease Control and Prevention (CDC) in 1946.

    • Epidemiological Transition: The Framingham Heart Study (initiated in 1948) and the 1964 Surgeon General’s Report on Smoking established the scientific framework for chronic disease control and behavioral risk factor mitigation.

    • Systemic Fault Line: Population-based prevention and individual clinical treatment developed separate funding streams and governance structures, creating ongoing structural tension.

  • 1929–1960: Development of Employment-Based Health Insurance:

    • 1929 Baylor Plan: Dallas schoolteachers agreed to prepaid hospital care at Baylor University Hospital, serving as the prototype for Blue Cross.

    • 1930s Expansion: Hospital prepayment plans (Blue Cross) and physician fee plans (Blue Shield) expanded nationwide.

    • 1943–1945 Wartime Wage Controls: World War II wage freezes prompted employers to offer health benefits to compete for scarce labor; the Internal Revenue Service (IRS) declared employer contributions tax-exempt.

    • 1954 Tax Code Codification: Employer-paid health insurance premiums were permanently excluded from taxable income, forming the largest federal tax expenditure in health.

  • 1965–1980: Medicare, Medicaid, and Federal Expansion:

    • Medicare (Title XVIII of the Social Security Act): Federal social insurance program covering individuals aged 6565 and older, and later expanded to individuals with permanent disabilities and End-Stage Renal Disease (ESRD). Characterized by uniform national administration.

    • Medicaid (Title XIX of the Social Security Act): Joint federal-state means-tested entitlement program for low-income populations, administered by individual states with variable benefit structures.

    • Historical Impact: The 1965 Social Security Amendments established a permanent public financing role — social insurance for the elderly and welfare medicine for the poor — making the federal government the single largest purchaser of medical care.

  • 1980–2000: Cost Expansion and Managed Care Transition:

    • National Health Expenditure Growth: Total healthcare spending escalated from ~5%5\% of Gross Domestic Product (GDP) in 1960 to ~13%13\%\text{--}14%14\% of GDP by 2000.

    • HMO Act of 1973: Federal policy promoted prepaid managed care organizations to restrain medical inflation.

    • 1983 Prospective Payment System (PPS): Medicare replaced retrospective cost reimbursement for hospitals with fixed Diagnosis-Related Groups (DRGs).

    • 1990s Managed Care Expansion: Adoption of Health Maintenance Organizations (HMOs) and Preferred Provider Organizations (PPOs) grew rapidly, utilizing capitation, utilization review, and selective provider networks.

    • 1992 Resource-Based Relative Value Scale (RBRVS): Standardized Medicare physician payments based on resource inputs.

    • Managed Care Backlash: Consumer and provider resistance in the late 1990s relaxed strict gatekeeping rules, shifting enrollment toward open-network PPOs.

  • 2010: The Patient Protection and Affordable Care Act (ACA):

    • Coverage Expansion Pillars: Extended Medicaid eligibility to 138%138\% of the Federal Poverty Level (FPL), created subsidized Health Insurance Marketplaces, and introduced an individual coverage mandate.

    • Insurance Market Regulations: Enacted guaranteed issue, banned pre-existing condition exclusions, permitted adult dependents to remain on parental plans until age 2626, and eliminated annual/lifetime coverage caps.

    • Delivery System Reform: Established Accountable Care Organizations (ACOs), value-based purchasing frameworks, and the Center for Medicare and Medicaid Innovation (CMMI).

    • Federalism Impact: The Supreme Court decision NFIB v. Sebelius (2012) made Medicaid expansion optional for states, resulting in the state coverage gap.

    • Coverage Statistics: The non-elderly uninsured rate dropped from ~19%19\% in 2010 to ~8%8\% in 2023; Marketplace enrollment reached ~21 million21\text{ million} individuals by 2024.

  • 2020–2026: Pandemic Era to Legislative Reconciliation:

    • 2020–2021: The COVID-19 pandemic prompted federal emergency expansions, overnight adoption of telehealth, and enhanced ACA subsidies under the American Rescue Plan Act (ARPA).

    • 2023–2024: Post-pandemic Medicaid "unwinding" initiated eligibility redeterminations for millions, while the national uninsured rate hovered near historical lows (~8%8\%).

    • July 4, 2025 (One Big Beautiful Bill Act, P.L. 119-21): Enacted ~$1 trillion in federal healthcare budget reductions over ten years, mandatory Medicaid work requirements, and enhanced eligibility verification processes.

    • Late 2025–2026: Expiration of enhanced ACA premium tax credits, projected to drive premium increases and coverage losses of ~10–15 million individuals across the decade.

  • Core Analytical Themes of U.S. Health Policy:

    • Path Dependency: Historical decisions (employer-sponsored coverage, private non-profit hospital dominance, state-level Medicaid administration) constrain structural reform.

    • Incrementalism: Reform occurs by layering programs onto existing systems rather than restructuring delivery mechanisms.

    • Professional Autonomy: Organized medicine historically influenced supply, payment design, and defeated universal national health insurance proposals.

    • System Split: Separate funding and administration for public health and clinical medicine limit integrated disease prevention.

    • Structural Equity Disparities: Early institutional designs generated persistent racial, socioeconomic, and geographic health disparities.

Historical Development of the Health System in Puerto Rico

  • Six Historical Stages of System Evolution:

    • Stage I (1508–1898): Spanish Colonial Medicine (beneficence, religious orders, military hospitals).

    • Stage II (1898–1940): Early U.S. Territorial Public Health (sanitation, uncinariasis campaigns, Marine Hospital Service).

    • Stage III (1940–1975): New Deal & Post-War Expansion (Hill-Burton Act, Arbona Regionalization Plan, ELA statehood creation).

    • Stage IV (1993–2010): La Reforma and Privatization (Managed Care Organizations, public hospital divestiture, Mi Salud).

    • Stage V (2010–2022): Fiscal Crisis and Natural Disasters (PROMESA, Hurricane María, earthquakes, COVID-19, Hurricane Fiona).

    • Stage VI (2023–2026): The Plan Vital Era (ASES oversight, health workforce exodus, FY 2027 Medicaid financial cliff).

  • Stage I: Spanish Colonial Period (1508–1898):

    • 1508: Caparra established; European medicine introduced; Taíno and enslaved African healers operated informally.

    • 1524: Founding of Hospital de la Concepción el Grande in San Germán under royal patronage, among the oldest in the Americas.

    • Beneficence Model: Indigent care provided by Catholic religious orders, municipal Health Boards (Juntas de Sanidad), and royal charity.

    • Military and Elite Care: Spanish military hospitals served garrisons, while private physicians treated peninsulares and the Creole elite.

    • Epidemic Burden: Recurring outbreaks of smallpox, yellow fever, and cholera (1855–1856) exposed fragile sanitary infrastructure outside San Juan.

    • Late 19th Century Health Status:

    • Hookworm (Uncinariasis / Necator americanus): Induced severe chronic anemia in ~33.3%33.3\% of rural agricultural workers.

    • Endemic tuberculosis and malaria across the island.

    • Infant mortality exceeded 200 per 1,000 live births200\text{ per }1,000\text{ live births}.

    • Overall life expectancy estimated at ~30 years30\text{ years} in 1898.

    • Regulatory oversight managed by the Junta Superior de Sanidad; municipal médicos titulares assigned to indigent care; primary demographic records kept via parish registries.

  • Stage II: U.S. Territorial Transition and Militarized Public Health (1898–1940):

    • 1898 Treaty of Paris: Ceded Puerto Rico to the United States; governed by U.S. military administration from 1898 to 1900.

    • Federal Agencies: Marine Hospital Service (reorganized as USPHS in 1912) assumed quarantine enforcement, immigrant inspection, and port sanitation.

    • Governance Legislation: The Foraker Act (1900) and Jones Act (1917) established civil territorial government and statutory U.S. citizenship without voting representation in Congress.

    • Anemia Commission (1899): Directed by Major Bailey K. Ashford; identified Necator americanus as the causative agent of rural anemia (anemia del jíbaro). Anti-uncinariasis campaigns (1904–1908, supported by the Rockefeller Foundation) treated ~300,000 residents.

    • Institutional Expansion: Reorganization of the Insular Department of Health (1912) with bacteriological laboratories in San Juan. Founding of the School of Tropical Medicine of Puerto Rico (1926, affiliated with Columbia University).

    • Federal Interventions: Maternal-child health clinics established under the federal Sheppard-Towner Act (1921). Disaster relief following Hurricane San Felipe Segundo (1928) set federal relief precedents. Puerto Rico Reconstruction Administration (PRRA) and Federal Emergency Relief Administration (FERA) funded municipal health units in the late 1930s.

  • Stage III: Commonwealth Expansion, Hill-Burton, and the Arbona Plan (1940–1975):

    • Hill-Burton Act (1946): Extended to Puerto Rico, financing ~40%40\% of community hospital beds, funding regional district hospitals, and initiating planning for the Río Piedras Medical Center (Centro Médico).

    • Economic and Political Shift: Operation Bootstrap (Operación Manos a la Obra, 1948) expanded municipal revenues; the creation of the Commonwealth (Estado Libre Asociado - ELA) in 1952 directed state funds into public health.

    • 1956: Opening of the University of Puerto Rico (UPR) School of Medicine, serving as the clinical core for Centro Médico.

    • Health Metric Improvements (1950–1980): Life expectancy increased from ~61 years61\text{ years} to ~73 years73\text{ years}; infant mortality declined from 67 to 18 per 1,000 live births67\text{ to }18\text{ per }1,000\text{ live births}.

    • The Arbona Regionalization Plan (1956–1976):

    • Developed by Dr. Guillermo Arbona (Secretary of Health 1957–1965) and Dr. John B. Grant (Rockefeller Foundation).

    • Divided the island into 5 (later 7) health regions structured on a 4-tier referral hierarchy:

      • Level I: Diagnostic and Treatment Centers (Centros de Diagnóstico y Tratamiento - CDT) at the municipal level.

      • Level II: District Hospitals (secondary surgical care).

      • Level III: Regional Hospitals (tertiary care).

      • Level IV: Supratertiary Care (Centro Médico de Río Piedras).

    • Publicly owned and operated directly by the ELA Department of Health; recognized internationally by WHO/PAHO as a model for regional care delivery. System remained functional until structural erosion under 1993 privatization reforms.

    • Arrival of Medicare and Medicaid (1965–1968):

    • Medicare (1965) extended near-parity coverage under Part A, though Part B participation lagged.

    • Medicaid (1968) extended under Title XIX, but capped as a statutory block grant with a low Federal Medical Assistance Percentage (FMAP) set at 50%50\%, unlike open-ended state matching.

    • Persistent Medicaid cap created structural deficits in public hospitals and CDTs; by 1990, ~50%50\% of the island’s population depended on an underfunded public care system.

  • Stage IV: La Reforma and Privatization (1993–2010):

    • Pre-Reform Sectoral Segmentation (1994):

    • Total population: ~3.6 million.

    • Private health insurance: 1.9 million.

    • Public Department of Health care: 1.4 million.

    • Uninsured population: ~300,000.

    • Physician distribution: ~1,000 public doctors (1 per 1,400–1,700 public patients) vs. 6,000 private doctors.

    • La Reforma Enactment (Act 72 of 1993): Enacted under Governor Pedro Rosselló. Shifted the state from direct care provider to public insurer via "la tarjetita" (health card). Public hospitals and CDTs were sold to private medical groups; Centro Médico was retained under public administration.

    • Managed Care Structure: The island was divided into regions, contracting one private Managed Care Organization (MCO) per region via competitive bidding (fully implemented by 2001). By 2000, covered ~1.8 million residents with >$1 billion in annual public funding.

    • Reform Outcomes:

    • Achievements: Extended private insurance coverage to low-income populations; modernized private hospital infrastructure.

    • Deficiencies: Did not reduce total public health expenditure (Santos-Lozada, 2011); generated administrative MCO overhead; disrupted the regional referral hierarchy of the Arbona Plan; established regional MCO monopolies.

    • Transition to Mi Salud (2010): Governor Luis Fortuño renamed the program Mi Salud, re-establishing regional MCO contracts. Under the 2010 ACA, Puerto Rico received a temporary Medicaid allocation (~$6.4 billion from 2011 to 2019) without access to insurance Marketplaces or standard Medicaid expansion options.

    • Medicare Advantage (MA) Penetration: MA enrollment expanded to ~70%70\% of Medicare beneficiaries in 2019 and >90%90\% by 2024 (compared to ~54%54\% on the U.S. mainland). Roberts and Song (2022) documented that ACA benchmark rules widened the payment gap between Puerto Rico and mainland states.

  • Stage V: Fiscal Crisis and Natural Disasters (2010–2022):

    • Fiscal Collapse: Expiration of Section 936 tax credits (2006) led to industrial contraction. Puerto Rico defaulted on municipal bonds in 2014; net emigration (>700,000 residents since 2000) accelerated demographic aging.

    • PROMESA (P.L. 114-187, 2016): Established the Financial Oversight and Management Board (FOMB / la Junta / JSF), imposing strict spending controls on the Department of Health and Medicaid budgets.

    • Hurricane María (Sept. 20, 2017): Category 4 storm; resulted in total power grid collapse (longest blackout in U.S. history, lasting up to 11 months in rural areas) and an 85%85\% cellular network failure. Excess mortality estimated at ~4,645 deaths through Dec. 2017 (Kishore et al., NEJM 2018). Federal disaster relief per capita was significantly lower than responses in Texas or Florida (McSorley, AJPH 2024).

    • Cumulative Disasters (2019–2022):

    • SW earthquakes (Dec. 2019–Jan. 2020) damaged acute care hospitals in Ponce, Guánica, and Yauco.

    • COVID-19 pandemic (March 2020) dropped hospital occupancy to ~30%30\% at its peak (Birling Capital, 2025) and increased mental health service utilization across all 7 regions (Stimpson et al., 2025).

    • Hurricane Fiona (Sept. 2022) caused secondary power grid collapses and flooding, accelerating hospital insolvency.

  • Stage VI: Plan Vital Era and Modern System Performance (2023–2026):

    • Plan Vital Framework: Rebranded Medicaid program managed by the Puerto Rico Health Insurance Administration (Administración de Seguros de Salud - ASES), utilizing 5 regional MCOs.

    • Consolidated Appropriations Act of 2023: Secured federal Medicaid funding through FY 2027 and temporarily set the FMAP at 76%76\% (compared to statutory 55%55\%).

    • ASES Program Expansion (Aug. 2024): Added coverage for anti-obesity medications, complex HIV regimens, gene therapies, and durable medical equipment, alongside a +5%5\% increase in hospital per-diems.

    • FY 2027 Medicaid Cliff: Unless Congress acts, the FMAP drops back to 55%55\% after FY 2027, creating an estimated annual deficit of ~$2 billion (putting up to $3 billion in annual funding at risk).

    • Health Workforce Crisis:

    • Active physicians dropped from ~14,500 in 2010 to ~9,000 in 2020 (~38%38\% decline).

    • Annual exodus of 365–500 physicians to the U.S. mainland.

    • 72 Medically Underserved Areas (MUAs) identified by JSF/FTI analysis (2025).

    • Act 14 of 2017 provided a 4%4\% fixed income tax rate incentive for physicians (costing ~$237.5 million in 2021), but failed to halt migration.

    • Hospital Insolvency and Capacity Collapse:

    • Bed capacity declined across all 7 health regions between 2010 and 2020 (heaviest losses in Ponce and Mayagüez).

    • In August 2025, Hospital del Maestro (San Juan) filed for Chapter 11 bankruptcy and ceased operations after 60 years of service. At least 6 other hospitals filed for bankruptcy or were sold between 2020 and 2025.

    • Demographic and Health Indicators (2024):

    • Total Population: 3.24 million (−14.9%-14.9\% decline relative to 2000).

    • Population Aged 65+65+: 24.7%24.7\% (compared to 17.9%17.9\% on the U.S. mainland).

    • Life Expectancy: 81.9 years81.9\text{ years} (PAHO 2024).

    • Diabetes Prevalence: 15.1%15.1\% among adults (projected 18%18\% by 2050); 40%40\% among Medicare beneficiaries.

    • Chronic Kidney Disease (CKD) Prevalence: 33%33\% among Medicare Fee-For-Service beneficiaries (vs. 25%25\% on the U.S. mainland).

    • Maternal Mortality: 34.3 per 100,000 live births34.3\text{ per }100,000\text{ live births} (2020).

    • Leading Cause of Disability-Adjusted Life Years (DALYs): Diabetes (IHME 2024).

    • Risk-adjusted Medicare spending per beneficiary in Puerto Rico is significantly below mainland averages for diabetes (11,36311,363 vs. 15,52515,525) and CKD (13,18113,181 vs. 18,37618,376).

Comparative Analysis: United States vs. Puerto Rico

  • Systemic Historical Trajectory:

    • United States: Incremental layered development (Employer-sponsored coverage →\rightarrow 1965 Medicare/Medicaid →\rightarrow 1980s Managed Care →\rightarrow 2010 ACA $ ightarrow$ 2023 Coverage Peak of 92.5%92.5\%).

    • Puerto Rico: U.S. territorial jurisdiction without statutory payment parity (1898 Cession →\rightarrow 1917 Jones Act Citizenship →\rightarrow 1976 Section 936 Corporate Tax Era →\rightarrow 1993 La Reforma Privatization →\rightarrow 2016 Board Fiscal Control under PROMESA).

  • Coverage Structure Comparison:

    • United States Coverage Profile (2024–2025):

    • Uninsured Rate: 8.3%8.3\% (2025), representing ~28.0 million individuals.

    • Employer-Sponsored Insurance: 49%49\% (primary source).

    • Medicaid Enrollment: 21%21\%.

    • Medicare Enrollment: 15%15\%.

    • Marketplace / Non-Group: 6%6\%.

    • Military Healthcare: 1%1\%.

    • Medicaid Expansion Status: 41 states plus D.C. adopted ACA expansion (138%138\% FPL); 10 states non-expansion. Uninsured rate in non-expansion states is 18.1%18.1\% vs. 9.0%9.0\% in expansion states.

    • Puerto Rico Coverage Profile (2024–2025):

    • Medicaid Reliance: 47%47\% of residents depend on Medicaid (Plan Vital), compared to 25%25\% in Mississippi (highest mainland state).

    • Total Plan Vital Enrollees: >1.4 million (~50%50\% of the population).

    • Medicare Advantage Penetration: >90%90\% of Medicare beneficiaries choose MA plans (vs. 54%54\% mainland average).

    • Annual Medicaid Expenditure: ~$4.7 billion (~72%72\% federally funded).

    • Structural Barrier: Traditional Medicare automatic Part B enrollment and Part D Low-Income Subsidies (LIS) do not apply in Puerto Rico, forcing beneficiaries into Medicare Advantage.

  • Financing Disparities and Funding Caps:

    • Medicaid Match Structure:

    • U.S. States: Open-ended entitlement funding matching actual expenditure; FMAP ranges from 50%50\% to 83%83\% based on state per capita income.

    • Puerto Rico: Statutory annual federal spending cap. Temporary FMAP fixed at 76%76\% through FY 2027 under P.L. 117-328. Reverts to statutory 55%55\% in FY 2028 without Congressional extension.

    • Statutory Federal Medicaid Allotments (P.L. 117-328): FY 2023 (3.275 billion3.275\text{ billion}), FY 2024 (3.325 billion3.325\text{ billion}), FY 2025 (3.475 billion3.475\text{ billion}), FY 2026 (3.645 billion3.645\text{ billion}), FY 2027 (3.825 billion3.825\text{ billion}). Post-FY 2027 funding shortfall projected at ~$3.0 billion annually.

    • Medicare Advantage Reimbursement Deficit:

    • Benchmark rate for Medicare Advantage in Puerto Rico is −39%-39\% below the national mainland average (widened from −24%-24\% in 2011).

    • 94%94\% of dual-eligible beneficiaries (Medicare/Medicaid) are enrolled in MA plans.

    • Puerto Rico is excluded from the Medicare Part D Low-Income Subsidy (LIS) and the Medicare Savings Program (where states pay Part B premiums for dual-eligibles).

    • 57%57\% of elderly MA beneficiaries in Puerto Rico are categorized as high-need.

  • National Expenditure and System Scale:

    • United States Overall Spending (2024):

    • Total Expenditure: 5.3 trillion5.3\text{ trillion} (+7.2%7.2\% annual growth).

    • Per Capita Expenditure: 15,500 per year15,500\text{ per year}.

    • Hospital Sector Share: 31%31\% (1.6 trillion1.6\text{ trillion}).

    • Medicare Expenditure per Diabetic Beneficiary: 11,400 per year11,400\text{ per year}.

    • National Health Expenditure as % of GDP: 19.5%19.5\% (2020), 17.6%17.6\% (2022), 17.7%17.7\% (2023), 18.0%18.0\% (2024), projected 20.6%20.6\% by 2034.

    • Puerto Rico Resource Limitation:

    • Operates with a fraction of mainland per-capita spending despite higher chronic disease prevalence.

    • Medicare risk-adjusted spending per diabetic: 11,36311,363 (PR) vs. 15,52515,525 (Mainland).

    • Medicare risk-adjusted spending per CKD patient: 13,18113,181 (PR) vs. 18,37618,376 (Mainland).

  • Healthcare Workforce and Infrastructure Comparison:

    • United States Workforce:

    • Active Physicians: ~991,000.

    • Registered Nurses: 4M+.

    • Primary Care Health Professional Shortage Areas (HPSAs): 7,488 (affecting ~74 million residents).

    • Projected Physician Shortage: Up to 86,000 physicians by 2036 (AAMC).

    • Physician Density: 3.68 per 1,000 residents3.68\text{ per }1,000\text{ residents}.

    • Hospital Bed Density: 2.68 per 1,000 residents2.68\text{ per }1,000\text{ residents}.

    • Puerto Rico Workforce:

    • Physician Migration: 365 to 500 physicians leave annually.

    • Age Profile: >40%40\% of active physician specialists will reach retirement age by 2027.

    • Physician Density: 1.75 per 1,000 residents1.75\text{ per }1,000\text{ residents} (less than half the U.S. rate).

    • Hospital Bed Density: 3.32 per 1,000 residents3.32\text{ per }1,000\text{ residents} (higher bed capacity per capita than mainland, but severely financially strained).

  • Population Health Metrics and Comparative Disparities:

    • Life Expectancy: Puerto Rico (81.9 years81.9\text{ years}) exceeds U.S. mainland (78.4 years78.4\text{ years}) by +3.5 years.

    • Aging Demographics: Population aged 65+65+ represents 24.7%24.7\% in Puerto Rico vs. 17.9%17.9\% in the continental U.S.

    • Infant Mortality: Puerto Rico (7.2 per 1,000 live births7.2\text{ per }1,000\text{ live births} in 2020, down from 10.210.2 in 2000) vs. U.S. mainland (5.4 per 1,0005.4\text{ per }1,000).

    • Disease Burden Prevalence (Medicare Enrollees):

    • Diabetes: 40%40\% in Puerto Rico vs. 26%26\% on U.S. mainland.

    • Chronic Kidney Disease: 33%33\% in Puerto Rico vs. 25%25\% on U.S. mainland.

    • U.S. Disparities: Uninsured rate among Hispanic adults (21.9%21.9\%) vs. White adults (8.5%8.5\%) in 2025.

  • Summary Comparison Matrix:

    • Political Status: 50 States + D.C. | Unincorporated U.S. Territory.

    • Medicaid Funding: Open-ended federal entitlement match | Capped block grant with post-FY27 cliff.

    • FMAP Matching: 50%50\%\text{--}83%83\% income-based | 76%76\% fixed through FY27 →\rightarrow reverts to 55%55\%.

    • Uninsured Rate: 8.3%8.3\% (2025) | Low overall (~47%47\% dependent on Medicaid).

    • Medicare Advantage Market Share: ~54%54\% | >90%90\%.

    • Health Expenditure: 18.0%18.0\% of GDP (15,50015,500 per capita) | Severely under-resourced relative to disease burden.

    • Physician Density: 3.68 per 1,0003.68\text{ per }1,000 | 1.75 per 1,0001.75\text{ per }1,000 (ongoing physician exodus).

    • Life Expectancy: 78.4 years78.4\text{ years} | 81.9 years81.9\text{ years}.

Comparative Health Systems Frameworks and Global Models

  • Objectives and Conceptual Dimensions of Health System Typologies:

    • Purpose of Classification: Serves as a comparative analytical tool to categorize healthcare financing, governance, and delivery structures across nations.

    • Three Core Analytical Dimensions:

    • Regulation: Defines governance, rules of access, price setting, and quality control (State, Societal, or Market dominance).

    • Financing: Mechanism of revenue collection and risk pooling (General taxation, social payroll contributions, private premiums, or out-of-pocket payments).

    • Provision: Ownership of health facilities and employment arrangement of clinical personnel (Public, non-profit private, or for-profit private).

    • Rothgang & Wendt Hierarchy Rule: Regulation conditions financing mechanisms, which in turn condition service provision.

  • Evolution of Health System Typologies:

    • 1st Generation (Classic / Financing Focus): Reid (4 Archetpyal Models); Roemer / WHO. Simple, pedagogical classifications based primarily on revenue collection.

    • 2nd Generation (Institutional / Governance Focus):

    • Esping-Andersen: Welfare state regimes (Liberal, Conservative-Corporatist, Social-Democratic); introduced the concept of healthcare decommodification.

    • Michael Moran: The "Healthcare State" concept, evaluating governance, technological production, and healthcare consumption.

    • Claus Wendt: Institutional typology categorizing state-oriented, societal-oriented, or market-oriented healthcare systems.

    • 3rd Generation (Empirical / Multidimensional Focus): Böhm et al. (2013) and Reibling et al. Deductive empirical classifications using OECD data across regulation, financing, and provision dimensions.

  • First Generation: The Four Classic Health System Models (Reid Framework):

    • 1. Beveridge Model (National Health Service - NHS):

    • Financing: General tax revenue; single-payer government system.

    • Insurance: Government entity.

    • Payment: Direct government disbursement.

    • Provision: Publicly owned facilities; salaried clinical staff or capitated public providers; free at the point of service.

    • Representative Examples: United Kingdom, Spain, New Zealand, Cuba, Nordic nations.

    • 2. Bismarck Model (Social Health Insurance - SHI):

    • Financing: Joint employer-employee payroll contributions to non-profit sickness funds (cajas de enfermedad).

    • Insurance: Private non-profit sickness funds.

    • Payment: Private non-profit insurers.

    • Provision: Largely private, independent providers operating under strict state price negotiations.

    • Representative Examples: Germany, France, Japan, Netherlands, Switzerland.

    • 3. National Health Insurance Model (NHI):

    • Financing: Universal tax-funded single-payer system.

    • Insurance: Single public insurance program.

    • Payment: Public payer.

    • Provision: Private independent service providers.

    • Representative Examples: Canada, Taiwan, South Korea.

    • 4. Out-of-Pocket / Non-Universal System Model (SCU):

    • Financing: Direct individual payment at point of service; absence of pooled financial risk.

    • Insurance: None or fragmented private options.

    • Provision: Fragmented private or fee-charging public facilities.

    • Representative Examples: Low-income developing nations.

    • The U.S. Hybrid Case: Combines all four models within distinct sub-sectors: Veterans Affairs / Military (Beveridge), Employer-sponsored care (Bismarck), Medicare (NHI), and the Uninsured (Out-of-Pocket).

  • System Classification Decision Tree:

    • Does the country maintain Universal Coverage?

    • NO →\rightarrow Non-Universal System (SCU) — e.g., United States (Puerto Rico), developing nations.

    • YES →\rightarrow Evaluate ownership and administration across dimensions:

      • Regulation, Financing, Payment, and Provision ALL Public →\rightarrow NHS / Beveridge (e.g., United Kingdom).

      • Regulation, Financing, and Payment Public; Provision Private →\rightarrow NHI (e.g., Canada).

      • Regulation Societal/Public; Financing Payroll Taxes; Insurance/Payment/Provision Private Non-Profit $ ightarrow$ SHI / Bismarck (e.g., Germany).

  • Formal Definitions of Health Coverage Commitments:

    • Universal Healthcare: A health financing structure providing essential health care services and financial protection to >90%90\% of a nation's citizens.

    • Free Healthcare: A delivery framework providing primary care services free of charge or for a nominal fee to all citizens without income or wealth exclusions.

  • Roemer and WHO (2000) Performance Frameworks:

    • Roemer Classification: Matrices state economic intervention against overall economic development level (Free Market, Welfare-Oriented, Socialist, Systems in Transition).

    • WHO World Health Report 2000: Shifted focus from structural taxonomy to system performance outcomes:

    1. Overall population health status attained.

    2. Responsiveness to general population expectations.

    3. Fairness in financial contributions across income levels.

  • International Empirical Comparative Data (2024):

    • Per Capita Health Expenditure (US$ PPP, 2024):

    • United States: 14,77514,775

    • Switzerland: 9,8009,800

    • Germany: 9,0009,000

    • Netherlands: 8,6008,600

    • France: 7,1007,100

    • Canada: 7,0007,000

    • Australia: 6,6006,600

    • United Kingdom: 6,4006,400

    • Japan: 5,3005,300

    • Costa Rica: 1,9351,935

    • Brazil: 1,7001,700

    • Life Expectancy at Birth (Years, 2024):

    • Japan: 84.184.1

    • Switzerland: 83.983.9

    • Australia: 83.283.2

    • France: 82.882.8

    • Netherlands: 82.282.2

    • Canada: 82.082.0

    • United Kingdom: 81.581.5

    • Germany: 81.281.2

    • Costa Rica: 80.880.8

    • United States: 79.079.0

    • Brazil: 75.975.9

  • Commonwealth Fund "Mirror, Mirror 2024" Overall Rankings:

    • Comparative evaluation of 10 high-income nations across 70 performance indicators in 5 domains:

    1. Australia (NHI / Mixed)

    2. Netherlands (Bismarck)

    3. United Kingdom (Beveridge)

    4. New Zealand (Beveridge)

    5. France (Bismarck)

    6. Sweden (Beveridge)

    7. Canada (NHI)

    8. Switzerland (Bismarck)

    9. Germany (Bismarck)

    10. United States (Hybrid / Non-Universal)

  • U.S. Performance Breakdown across Commonwealth Fund Domains:

    • Care Process: Ranked 2nd of 10 (Strengths: clinical preventive care, patient safety protocols, chronic disease coordination).

    • Administrative Efficiency: Ranked 9th of 10 (Deficits: complex billing procedures, insurer paperwork, eligibility disputes).

    • Equity: Ranked 10th of 10 (Deficits: wide disparities in care access based on income/race).

    • Access to Care: Ranked 10th of 10 (Deficits: high out-of-pocket costs, cost-related care avoidance, uninsured population).

    • Health Outcomes: Ranked 10th of 10 (Deficits: lowest life expectancy, highest infant mortality, highest rate of avoidable/treatable mortality).

  • Specific National Case Studies:

    • United Kingdom (Beveridge - NHS): Financed via general revenues (~11%11\% GDP). Free care at point of delivery, low administrative overhead, high equity; struggles with post-2010 surgical wait lists and capital underinvestment.

    • Germany (Bismarck - SHI): Financed via mandatory payroll contributions to 100+ non-profit sickness funds (~11.8%11.8\% GDP). Universal coverage, comprehensive benefits, high patient choice, virtually no wait lists; higher administrative overhead.

    • Canada (NHI): Single-payer provincial Medicare program (~11%11\% GDP). Strong population universal coverage and equity; wait times for elective surgical procedures, lack of universal outpatient prescription drug/dental coverage.

    • Taiwan (NHI Single-Payer): Established single smart-card system in 1995 (~6%6\%\text{--}7%7\% GDP). Exceptionally low administrative overhead (<2%2\%), high population satisfaction; long-term financial stability challenges.

  • Universal Healthcare Trade-Offs:

    • Cost vs. Access: Open access without budget caps expands spending; strict fixed budgets generate patient wait queues.

    • Choice vs. Efficiency: Multi-payer choice (Bismarck) increases administrative overhead; single-payer administrative simplicity (Beveridge/NHI) limits insurer choice.

    • Speed vs. Equity: Price-based rationing allows rapid access for those who can pay but excludes low-income populations; universal public rationing queues all patients equally.

    • Innovation vs. Cost Containment: Unrestricted medical technology pricing accelerates R&D adoption but drives health inflation; single-payer price negotiation lowers per-unit costs.

  • Latin American Health System Segmentation:

    • Structural Stratification: Traditional Latin American health systems are segmented across three social classes:

    1. Social Security Institutes: For formal wage-earning employees (Bismarckian model).

    2. Ministry of Health Systems: For indigent and informal economy workers (underfunded public safety net).

    3. Private Sector: For high-income individuals paying out-of-pocket or for commercial plans.

    • High Out-of-Pocket Burden: Direct household expenditure remains high across the region, indicating incomplete financial protection.

    • Regional Reform Approaches:

    • Brazil (SUS - 1988): Sistema Único de Saúde. Largest tax-funded universal health system in the world (Beveridge style). Provides free care via the Family Health Strategy (Estratégia de Saúde da Família); expenditure ~9.7%9.7\% GDP, though ~50%50\% remains private.

    • Colombia (Ley 100 - 1993): Regulated competition model with Contributory and Subsidized regimes managed by private and public insurers (EPS). Coverage expanded to ~95%95\% of the population.

    • Chile: Dual framework combining public insurance (FONASA, covering the majority) and private health funds (ISAPRE, covering high-income groups). The AUGE/GES framework mandates explicit legally enforceable treatment guarantees for specific diseases.

    • Mexico (IMSS-Bienestar - 2023): Replaced Seguro Popular / INSABI with IMSS-Bienestar to consolidate public care for the uninsured and reduce out-of-pocket costs.

    • Costa Rica (CCSS - "La Caja"): Regional efficiency benchmark. Reached life expectancy of 80.8 years80.8\text{ years} at a per capita expenditure of 1,9351,935 (~1/7 U.S. spending). Universal coverage managed by a single solidary fund (Caja Costarricense de Seguro Social - CCSS). Deployed primary care teams (EBAIS) to rural areas first, reducing infant and chronic disease mortality.

  • Global Universal Health Coverage (UHC) Imperatives:

    • Sustainable Development Goal (SDG) Target 3.8: Commits UN member nations to achieve Universal Health Coverage by 2030; currently, roughly half of the global population lacks full coverage for essential health services.

    • Universal System Challenges Identified by Ezekiel Emanuel (2020):

    1. Escalating cost pressures from aging populations and technological innovation.

    2. High and rising prices of pharmaceutical drugs.

    3. Administrative waste and delivery of inappropriate or unnecessary care.

    4. Care coordination for complex chronic health conditions.

    5. Structural mismatch between hospital-centric delivery infrastructure and chronic outpatient care needs.

    6. Insufficient integration and financing of mental health services.

    7. Financing long-term social and elder care.

Questions & Discussion

  • Discussion Prompt / Course Q&A:

    • What specific structural policy mechanisms can address the FY 2027 Medicaid funding cliff in Puerto Rico to avoid severe cuts to Plan Vital?

    • How can health systems balance the administrative efficiency of single-payer systems with patient demand for provider choice and rapid access to new clinical technologies?

    • In what ways does the historical separation between clinical medicine and public health continue to impact chronic disease outcomes in the United States and Puerto Rico?