Across the United States, patients are increasingly finding themselves on months-long waiting lists for basic medical consultations, illustrating a systemic breakdown in the physician supply chain. Projections from the Association of American Medical Colleges indicate a potential deficit of up to 86,000 doctors over the next decade. If healthcare utilization in underserved communities were to reach the same levels as affluent suburban areas, this shortage could easily surpass 100,000 physicians. This looming crisis is not caused by a lack of interest in medical careers, as thousands of qualified applicants are turned away from residency programs every year. Instead, experts describe it as a “shortage by design,” resulting from specific federal policy choices made in the late 20th century. The most significant of these was the 1997 cap on Medicare-funded residency positions, which effectively froze the growth of the physician workforce during a period of massive population expansion. Medicare’s Graduate Medical Education (GME) payment system remains the primary financial mechanism for addressing this crisis, yet the formula used to distribute these funds is nearly four decades old and tied to an outdated model of healthcare delivery. Reforming this system is essential for creating a workforce that reflects the current demographic reality of the United States. Without significant changes to the GME formula, the federal government will continue to subsidize a status quo that leaves millions of people in underserved regions without adequate medical care.
The Financial Foundation of Physician Training
Direct Graduate Medical Education: The Financial Mechanics
Direct Graduate Medical Education, known as DGME, covers the tangible and observable costs associated with training medical residents in various hospital settings. These costs include the stipends paid to the residents, the salaries of the faculty members who provide direct supervision, and the administrative overhead required to maintain a functioning residency program. Because these are direct expenses, they represent the most straightforward portion of the GME funding puzzle, yet their distribution remains highly contentious. The calculation for DGME payments relies on a hospital-specific Per-Resident Amount, or PRA, which is then multiplied by the number of full-time equivalent residents. This total is adjusted based on the hospital’s Medicare patient load, ensuring that the federal government only pays for its share of the training costs. While this seems logical on the surface, the PRA itself has become a major source of inequity within the American medical system. For most hospitals, the PRA is based on a historical baseline of self-reported costs from 1984, which is only adjusted annually for inflation. This locks in the financial advantages of legacy institutions that reported high costs forty years ago, regardless of their current operational efficiency or the quality of the training they provide.
The historical trap created by the 1984 baseline makes it incredibly difficult for newer residency programs to compete or even maintain financial solvency. Institutions that were efficient or had lower costs in the mid-1980s are essentially penalized for their past frugality, while those that were expensive during that era continue to receive significantly higher subsidies today. This disparity has nothing to do with the actual costs of operating a modern medical program or the needs of the current patient population. Furthermore, the DGME formula creates a heavy dependency on the Medicare Inpatient Share, which can vary significantly between different types of facilities. If a hospital serves a higher proportion of uninsured patients or those with private insurance, their DGME reimbursement is naturally lower, even if their training costs are identical to a hospital with a high Medicare patient load. Ultimately, the DGME structure rewards longevity and historical spending patterns rather than addressing modern clinical needs or training outcomes. It creates a rigid financial environment where the wealth of an institution is often determined by a cost report filed decades before the current residents were even born. This prevents the system from being dynamic or responsive to the shifting demands of the national healthcare landscape, which requires a more equitable distribution of training funds.
Indirect Medical Education: Compensating Complex Care
The larger of the two funding components is Indirect Medical Education, or IME, which accounts for approximately $15 billion of the total GME budget. IME was designed to compensate teaching hospitals for the higher costs associated with training, such as the increased diagnostic testing ordered by learners and the lower overall productivity of a teaching environment. It also accounts for the fact that teaching hospitals tend to treat patients with more complex clinical needs, often serving as regional trauma centers or specialty hubs. IME payments are structured as a percentage “add-on” to Medicare Inpatient Prospective Payment System discharges, meaning every time a hospital discharges a Medicare patient, it receives a bonus based on its teaching status. The size of this bonus is determined by the hospital’s resident-to-bed ratio, which measures the number of trainees relative to the facility’s physical size. This formula creates a powerful feedback loop for large, high-volume teaching hospitals, where facilities with more residents relative to their bed count receive a higher percentage increase on every inpatient claim they process. This system naturally favors institutions that perform a high volume of expensive, complex procedures in an inpatient setting, further entrenching the financial power of established urban centers.
Because IME is tied exclusively to inpatient services, it provides no financial incentive for hospitals to train residents in outpatient settings, which is where most modern care occurs. In the 21st century, the vast majority of medical care has shifted to clinics and community health centers, yet the funding for physician training remains tethered to the hospital bed. This inpatient bias represents a major hurdle for the development of primary care and preventive medicine. These fields are practiced primarily in outpatient clinics, where IME payments are nonexistent under current Medicare rules. Consequently, hospitals are financially incentivized to keep residents in the hospital environment rather than sending them to the community settings where they are most needed. The exponential nature of the IME multiplier also leads to significant overpayments for some of the nation’s largest urban hospitals. Federal commissions have noted that the current multiplier is significantly higher than the actual empirical cost of training, acting as a massive indirect subsidy for established urban centers. This mismatch between payment and actual cost has led to calls for a more transparent and evidence-based approach to calculating the financial impact of medical education on hospital operations.
The Growing Divide in Medical Access
Geographic Concentration: The Rural Void
The distribution of GME funding is heavily skewed toward specific regions of the country, creating a geographic imbalance that leaves entire states underserved. The Northeast receives a disproportionate share of funding, accounting for 39% of the national total despite containing only 17% of the U.S. population. States like New York and Massachusetts receive over $120,000 in funding per 1,000 residents, reflecting the concentration of legacy teaching hospitals in those areas. In stark contrast, states in the South and West receive far less funding relative to their populations, even as their medical needs grow. Idaho and Montana, for example, receive less than $7,000 in GME funding per 1,000 residents, a staggering disparity that highlights the failure of the current system to adapt. This gap is particularly concerning because the South is currently the nation’s most populous and fastest-growing region, yet it receives only about 24% of the total GME funding. This regional disparity is directly linked to the 1997 funding cap, which froze residency slots at 1996 levels. Because the Northeast already had a robust medical infrastructure in the 1990s, they were able to lock in a massive lead that newer, faster-growing states have been unable to challenge.
The lack of funding in rural areas has created a severe physician shortage where it is most acutely felt by the population. While 20% of the American population lives in rural areas, only about 9% of physicians choose to practice in these locations, leading to significant care deserts. Furthermore, only 4% of medical residents spend more than half of their training in a rural setting, leaving them unprepared for the unique clinical and social challenges of rural medicine. Research consistently shows that the location of a residency program is the most accurate predictor of where a doctor will eventually practice, with more than half of all doctors remaining in the state where they completed their training. By concentrating residency slots in urban centers, the GME system virtually guarantees that doctors will continue to cluster in those same urban areas, leaving rural patients with limited options. To address the rural shortage, the funding must follow the population and provide incentives for training in growing regions. If the system does not incentivize training in rural states, the geographic “doctor gap” will only continue to widen. The current formula ignores the massive demographic shifts that have transformed the country over the last thirty years, necessitating a radical rethink of how slots are allocated.
The Specialty Tilt: Addressing the Generalist Deficit
In addition to geographic issues, the GME system has encouraged a significant imbalance between medical specialties, prioritizing high-cost procedures over preventive care. Since 2021, training positions for specialists have grown at a rate nearly 2.4 times faster than positions for primary care, exacerbating the shortage of general practitioners. In the early 1980s, primary care slots accounted for roughly 55% of all residency positions, but that percentage has steadily declined as the financial incentives have shifted. This is partly because specialized medicine is more lucrative for hospitals and offers higher salaries for graduating doctors, making it a more attractive path for both institutions and students. The GME formula does nothing to counteract these market forces; in fact, it often reinforces them by providing higher indirect subsidies for the complex inpatient care typical of specialty training. A common misconception is that internal medicine residents count toward the primary care workforce, but approximately 90% of these residents eventually pursue sub-specialties like cardiology or gastroenterology. This “sub-specialization trap” further thins the ranks of general practitioners who serve as the first line of defense for public health and chronic disease management.
The focus on specialty training is reinforced by the high-cost, inpatient-heavy environments that receive the most GME funding. Residents trained in specialized urban hospitals are surrounded by specialists and advanced technology, which naturally steers them toward those fields rather than general practice. There is little exposure to the comprehensive, long-term care model found in family medicine, which is essential for managing the health of an aging population. This deficit in primary care has serious implications for the management of chronic diseases and the overall cost of the healthcare system. When patients do not have access to a general practitioner, they are more likely to delay care until their conditions become severe, often resulting in expensive emergency room visits and preventable hospitalizations. This is an inefficient and costly way to manage public health that places a massive burden on the national economy. The earnings gap between specialists and general practitioners is another factor that the GME system fails to address effectively. Without financial incentives at the training level to prioritize primary care, the medical workforce will continue to lean toward the most profitable specialties rather than the most needed ones.
Structural Flaws in the Current Medicare Formula
The Inpatient Bias: Closing Regulatory Loopholes
The resident-to-bed ratio used to determine IME payments creates a systematic bias against small and rural hospitals that perform vital community work. Large urban facilities often have a very high number of residents relative to their bed count, which maximizes their percentage add-on and total federal reimbursement. Rural hospitals, however, often serve as the primary care hub for an entire region and must maintain more beds relative to their training capacity to handle fluctuations in patient volume. This results in a “double penalty” for rural and community-based training programs, as they generally perform fewer of the high-cost procedures that generate large base payments. The financial math of the current GME formula simply does not add up for the institutions that the country needs most to address the physician shortage. Another significant issue involves regulatory loopholes that allow urban hospitals to capture funding intended for rural areas. Current rules permit geographically urban hospitals to be reclassified as “rural” for payment purposes, leading to a massive spike in the number of urban hospitals claiming this status to boost their reimbursement rates.
Between 2021 and 2026, the number of urban hospitals with rural status jumped from a small handful to several hundred facilities across the country. Many of these are large, nonprofit centers that do not actually train doctors in rural communities or address the shortages in those specific areas. They are simply using the “rural” label as a financial strategy to secure more federal funding, which diverts limited resources away from genuine rural health initiatives. When large urban institutions capture these subsidies, there is less money available for the small hospitals that are actually located in underserved, low-population areas. This form of regulatory capture undermines the intent of rural healthcare support and prevents the expansion of the workforce into the most isolated parts of the nation. Furthermore, the mismatch between where training happens and where care is delivered is growing every year. American healthcare has seen a massive increase in outpatient visits since the turn of the century, yet GME funding remains strictly tied to the hospital setting. This prevents residents from gaining experience in the clinics and community settings where modern medicine is increasingly practiced, leaving them ill-prepared for the reality of 21st-century patient care.
Barriers to Entry: Overcoming the Preemptive Cap
Starting a new residency program is an incredibly expensive undertaking that requires significant upfront capital and a long-term financial commitment. It is estimated that a hospital must spend between $2 million and $8 million over several years before it begins to receive any Medicare payments for its trainees. Large, established hospitals can absorb these startup costs through their diverse revenue streams, but small community hospitals often find them insurmountable. Beyond the financial costs, there is a regulatory problem known as the “preemptive cap” that stymies growth in underserved regions. Many hospitals that would like to start residency programs today are legally barred from receiving meaningful funding because of actions taken decades ago. If a hospital hosted even a few rotating residents from another institution in the 1990s or 2000s, Medicare may consider them “already capped” for funding purposes. This “capped at zero” status is a common problem in rural areas and rapidly growing states, where historical participation in minor training activities has led to permanent financial restrictions.
A hospital might have allowed a few students to do elective rotations twenty years ago, and under Medicare rules, that activity triggered a permanent cap that remains in place today. Often, the Per-Resident Amount was set at zero because the hospital had no direct costs to report at the time, leaving them with no way to claim future funding. Decades later, these hospitals are effectively prevented from building their own training infrastructure, even if they have the patient volume and the community need to support it. The process for resetting these caps is notoriously difficult and rarely successful, with statistics showing that hospitals attempting to reset their counts have a success rate of only about 10%. This creates a rigid system that prevents the medical workforce from expanding into new territory or responding to the needs of modern populations. This lack of flexibility means that the training of new doctors remains stagnant in the areas that need them most, protecting existing programs at the expense of national health goals. Addressing these barriers is essential for any meaningful workforce expansion, as it would allow community hospitals to become active participants in medical education.
Strategic Recommendations for Future Reform
Modernizing Payment Models: A Path Toward Equity
The first major pillar of reform is modernizing the IME payment system to include outpatient services, which would better reflect how healthcare is delivered today. By extending IME payments to the Outpatient Prospective Payment System, Congress could rebalance the financial landscape and make community training more viable. This would make training in a neighborhood clinic just as financially attractive for a hospital as training in a surgical ward, encouraging more primary care rotations. Modeling of this change suggests that 70% of rural hospitals would see a net gain in funding, directing more resources to the regions currently facing the worst shortages. This shift aligns federal money with the actual delivery of care, ensuring that training happens in the settings where residents will eventually practice. A crucial part of this modernization involves changing the metrics used to calculate teaching intensity to be more comprehensive. Moving from a “resident-to-bed” ratio to a “resident-to-patient encounter” ratio would provide a more accurate picture of a hospital’s training load across all departments. This new ratio would account for both inpatient and outpatient activity, rewarding hospitals for the full spectrum of care they provide to their local communities.
Another proposal involves the introduction of declining marginal payments for very large residency programs to encourage decentralization of training. Under this system, the subsidy per resident would decrease once a program grows beyond a certain size, such as 200 or 400 slots, reflecting the economies of scale. Large programs benefit from shared infrastructure and do not need the same level of per-resident support as smaller, burgeoning programs in underserved areas. The funds saved from these declining marginal payments could then be redistributed to smaller, community-based residency programs that are currently struggling to survive. This would help break the monopoly that large urban centers hold over training capacity and provide a lifeline to programs in rural or economically disadvantaged regions. It represents a budget-neutral way to encourage a more diverse training landscape and ensure that federal investment is distributed more fairly. This approach acknowledges that the current one-size-fits-all subsidy is inefficient and fails to target the areas of greatest need. By tailoring the support to the size and type of the program, the federal government can get a better return on its investment and produce a more balanced workforce.
Rebalancing Priorities: Ensuring National Access
To solve the geographic mismatch, GME funding should be linked to state-level physician-to-population ratios to ensure a more equitable distribution of doctors. States with the most acute shortages would receive a larger share of any newly authorized or reallocated residency slots, incentivizing growth where it is needed most. This “need-based redistribution” would ensure that the workforce grows in the places where patients are currently struggling to find a primary care provider. Applying a shortage benchmark could shift nearly 10,000 residency slots from surplus regions in the Northeast to shortage states in the South and West. This would not necessarily harm the “surplus” states, as many of their urban centers would still maintain robust and world-class training programs. It simply creates a more equitable national distribution that follows population trends and addresses the reality of modern American demographics. The funding formula should also be adjusted to prioritize primary care over sub-specialties by increasing the Per-Resident Amount for generalists. This would provide a financial counterweight to the higher salaries found in specialized medicine, making it more attractive for institutions to host primary care programs.
Establishing a nationally uniform, geographically adjusted PRA for all new residency programs was a necessary step for ensuring fairness across the board. This eliminated the disadvantage faced by hospitals that lacked a high historical cost baseline from the 1980s, creating a level playing field for every community facility. Closing the “rural reclassification” loophole represented another essential action for protecting resources intended for underserved populations. By ensuring that only hospitals providing significant training in actual rural communities received these subsidies, the system began to direct funds more effectively. The transition from a legacy cost-reimbursement model to a proactive workforce-production model provided the structural changes needed to address the crisis. These reforms focused on long-term sustainability and the management of chronic diseases, ultimately reducing the overall cost of care for the federal government. By updating outdated formulas to meet modern realities, the healthcare system moved closer to ensuring that every citizen has access to a doctor. This strategic shift not only addressed the immediate shortage but also built a foundation for a more resilient and responsive medical workforce for the future.
