The key policy makers in healthcare in the United States are not a single body but a layered set of them: Congress and its budget advisors write and price the laws; the President and federal agencies under the Department of Health and Human Services turn those laws into working rules; federal courts decide whether the rules are legal; expert advisory panels issue recommendations that trigger automatic coverage requirements; state legislatures, insurance commissioners, and local health departments regulate providers and insurers on the ground; private accrediting bodies function as de facto regulators for hospitals; and industry groups, professional associations, patient advocates, researchers, and voters push all of the above.
Congress and Its Budget Advisors
Congress holds the primary power to create, amend, and fund healthcare law, and most of that work happens inside a small number of committees. In the Senate, the Finance Committee oversees Medicare, Medicaid, the Children’s Health Insurance Program, and most of the Affordable Care Act, because those programs are tied to tax policy and trust-fund financing.1United States Senate Committee On Finance. Jurisdiction The Senate Health, Education, Labor and Pensions Committee covers public health more broadly but does not control Medicare or Medicaid funding.2Senate Committee on Health, Education, Labor and Pensions. About
In the House, the Ways and Means Health Subcommittee handles Medicare and health-related tax provisions.3Ways and Means Committee. Subcommittees The Energy and Commerce Committee shares jurisdiction over Medicare and Medicaid and also oversees the FDA, CDC, and National Institutes of Health.4Democrats, Energy and Commerce Committee. Jurisdiction Bills touching both tax policy and public health commonly move through multiple committees, and each one can shape the final text.
Two nonpartisan bodies inside the legislative branch have quiet but decisive influence. The Congressional Budget Office produces cost estimates for proposed legislation and does not make policy recommendations.5Congressional Budget Office. Introduction to CBO A CBO score projecting hundreds of billions in added deficit can effectively kill a bill, while a favorable score can build the momentum for passage. The Medicare Payment Advisory Commission, created by the Balanced Budget Act of 1997, advises Congress on Medicare payment rates to hospitals, physicians, and private health plans, issuing formal reports each March and June.6MedPAC. What We Do Its recommendations are not binding, but Congress often lacks the technical staff to evaluate payment formulas independently.
The President and Federal Agencies
Once Congress passes a law, the executive branch fills in the operational details. The Department of Health and Human Services is the principal federal agency responsible for protecting health and providing essential human services.7U.S. Department of Health and Human Services. About HHS Inside HHS, three agencies do most of the heavy lifting.
- The Centers for Medicare and Medicaid Services administers Medicare, Medicaid, CHIP, and the Health Insurance Marketplace, setting reimbursement rates, defining coverage rules, and enforcing quality standards for participating providers.
- The Food and Drug Administration regulates drugs, medical devices, biologics, and food safety. A single FDA approval decision can reshape an entire treatment market.
- The Centers for Disease Control and Prevention leads public health surveillance, disease prevention, and emergency preparedness.
The President shapes policy through executive orders, agency appointments, and the annual budget proposal. The Office of Management and Budget adds another layer. Under Executive Order 12866, any proposed regulation likely to have an annual economic effect of $100 million or more must be reviewed by OMB’s Office of Information and Regulatory Affairs before it can take effect.8National Archives. Executive Order 12866 – Regulatory Planning and Review OIRA examines whether the benefits justify the costs and whether the rule conflicts with other agencies’ actions, which gives the White House a quiet veto over health regulations agencies might otherwise issue on their own.
Federal Courts
Federal courts check both Congress and the agencies. Under the Administrative Procedure Act, courts can set aside any agency action that is “arbitrary, capricious, an abuse of discretion, or otherwise not in accordance with law.”9Office of the Law Revision Counsel. 5 U.S. Code 706 – Scope of Review That standard applies to every CMS reimbursement rule, FDA drug approval, and CDC guidance document. A rule found to exceed the agency’s legal authority can be struck down entirely.
The judiciary’s role expanded in 2024, when the Supreme Court overturned Chevron deference in Loper Bright Enterprises v. Raimondo. The Court held that the APA “requires courts to exercise their independent judgment in deciding whether an agency has acted within its statutory authority” and that courts “may not defer to an agency interpretation of the law simply because a statute is ambiguous.”10Supreme Court of the United States. Loper Bright Enterprises v. Raimondo Before the decision, courts routinely accepted an agency’s reading of unclear statutes. Now judges decide for themselves what the law means. The practical effect is stronger incentives for industry groups and advocates to challenge health regulations in court, and pressure on Congress to write more precise statutes because agencies can no longer expect courts to fill in the gaps.
Federal Expert Advisory Panels
A handful of expert panels sit outside the normal agency chain of command yet drive concrete policy consequences.
U.S. Preventive Services Task Force
The USPSTF is an independent, volunteer panel of medical experts convened by the Agency for Healthcare Research and Quality. It reviews evidence on preventive services and assigns each a letter grade based on the strength of the evidence and the balance of benefits and harms.11United States Preventive Services Taskforce. About the USPSTF Under Section 2713 of the Public Health Service Act, as added by the ACA, non-grandfathered health plans must cover any service rated “A” or “B” without charging a copay or deductible.12Centers for Disease Control and Prevention. Preventive Services Coverage A single upgrade can require every private insurer in the country to cover a screening at no cost to patients.
Advisory Committee on Immunization Practices
ACIP plays the same role for vaccines. Composed of medical and public health experts, it develops recommendations on vaccine use in the civilian population through an evidence-based process and meets three times per year.13Centers for Disease Control and Prevention. Advisory Committee on Immunization Practices When ACIP recommends a vaccine and the CDC director adopts the recommendation, the ACA requires most health plans to cover it without cost-sharing. ACIP recommendations also shape the Vaccines for Children program.
State and Local Governments
States are the primary regulators of healthcare within their borders. State legislatures and governors enact health laws tailored to their populations, set Medicaid eligibility thresholds within federal limits, license healthcare professionals, and regulate insurance markets. Variation is significant. Roughly 30 states and territories now grant nurse practitioners full practice authority to treat patients without physician oversight, while the remaining states require some level of collaborative agreement or supervision.
State Health Departments
Each state health department is the central public health authority, responsible for disease surveillance, epidemiology, and prevention programs. These departments develop health policy, manage public health resources, and regulate providers and facilities for compliance with quality and safety standards.14Centers for Disease Control and Prevention. 10 Essential Public Health Services They also implement federally funded programs, sitting at the intersection of federal mandates and local needs.
State Insurance Commissioners
Insurance commissioners oversee the health insurance markets in each state. Under the ACA, proposed premium increases of 15 percent or more in the individual and small group markets must undergo an effective rate review. States with the authority and resources conduct those reviews themselves; where a state lacks the capacity, HHS steps in.15Centers for Medicare and Medicaid Services. Review of Insurance Rates Some states go further, giving commissioners authority to reject unjustified increases outright or scrutinize contract terms between insurers and hospitals for anticompetitive provisions.
Local Public Health Agencies
At the county and city level, local public health agencies handle restaurant and food safety inspections, communicable disease response, environmental health monitoring, and emergency services. They translate state and federal policy into the inspections, outreach, and clinics residents actually encounter. Funding and staffing vary dramatically by jurisdiction, which is one reason public health capacity looks so different from one community to the next.
Private Accreditation Organizations
Private organizations like The Joint Commission wield surprising policy power. Under federal law, a hospital accredited by a CMS-approved national accrediting organization can be “deemed” to meet Medicare’s conditions of participation, meaning it qualifies for Medicare and Medicaid reimbursement without a separate government survey.16Office of the Law Revision Counsel. 42 U.S. Code 1395bb – Effect of Accreditation To earn CMS approval, an accrediting body must demonstrate that its standards meet or exceed Medicare’s requirements.17Federal Register. Medicare and Medicaid Programs – Application From The Joint Commission for Continued CMS Approval of its Hospital Accreditation Program
Accreditation is technically voluntary, but most hospitals pursue it because losing deemed status means losing easy access to Medicare funding. That makes accreditors de facto regulators. When The Joint Commission updates its standards for infection control or patient safety, hospitals across the country change their practices to comply, often before any government regulation requires it.
Industry, Professional, and Patient Voices
Healthcare draws some of the highest lobbying spending of any sector. Pharmaceutical companies, hospital systems, and health insurers maintain large lobbying operations aimed at shaping legislation and regulation. Under the Lobbying Disclosure Act, organizations whose in-house lobbying expenses exceed $16,000 in a quarter must register and report their activities, and outside lobbying firms face a $3,500 quarterly threshold per client.18U.S. Senate. Registration Thresholds
Professional medical associations representing physicians, nurses, and other clinicians push from a different angle. They advocate for scope-of-practice rules, reimbursement rates, and patient safety standards, drawing on their members’ clinical experience. Their testimony before congressional committees and their comments on proposed regulations carry weight because they can speak to how a policy would work at the bedside rather than on paper.
Patient advocacy groups represent specific disease communities or broader patient interests. They lobby legislators, run public awareness campaigns, and submit comments during federal rulemaking. When a group representing cancer patients or people with rare diseases testifies before Congress, the personal stories they bring can shift the political calculus in ways that cost-benefit analyses alone cannot.
Researchers and the Public
Academic researchers and independent think tanks supply the evidence base policymakers rely on. Universities study treatment effectiveness, health disparities, and the costs of different interventions. Think tanks translate that research into concrete policy proposals, estimating budgetary impact and identifying unintended consequences before legislation is finalized.
Public opinion closes the loop. Polls measuring attitudes toward healthcare costs, coverage, and quality help lawmakers decide which issues to prioritize, and elected officials who ignore sustained frustration with drug prices or insurance gaps risk losing their seats. Community organizing, ballot initiatives, and voter turnout on healthcare issues give the public direct influence alongside the institutional channels above.