Coverage is universal from day one and never partial. What improves over time is the distribution of travel times — a mean, a spread and a tail — moved down by density and staffing. A distribution has no completion state, so access is never reported as a percentage complete. It is measured by condition and time to definitive care, and its honest milestone is the crossover year when as many sites open as close: net-negative today, and plausibly a twenty-year horizon. This clock runs separately from the transition, and for longer.
85,821 new-site and pre-hospital clinical FTE are required. Pipeline ceilings differ sharply: EMTs and paramedics at roughly 9,000 a year with a 12–24 month lag; nurse practitioners and physician assistants into shortage areas at about 4,200 a year at three years; rural generalists at roughly 600 a year at seven years.
Among those paths the rural generalist is the slowest. At 600 a year from Year 8, full staffing arrives around Year 11.
Staff nursing sits outside that figure and is larger — roughly 214,000 FTE at maturity on preliminary modelling, dominated not by new sites but by released demand in hospitals and clinics that already exist.
That is a mature staffing target, not a precondition for enrollment. Much of what coverage finances is already being delivered: births happen in hospitals whether or not the mother is insured, and emergency and uncompensated care are already staffed. Coverage changes who pays. Roughly 118,000 nurses is what enrolling everyone safely requires, and the remainder is the difference between safe and good.
On the current trajectory about 18,000 nurses a year are available beyond baseline demand growth, and the enrollment schedule stalls in Years 5 and 6. Two levers change that: expanding nursing-school capacity, where roughly 42,000 qualified applicants are turned away annually for want of faculty, preceptors and clinical placements rather than want of interest; and parity-wage international recruitment. With both, every year of the schedule clears and mature staffing arrives in Year 6. The training decision belongs in Year 1 because a funding decision takes four years to reach a bedside.
Median medical education debt runs $200,000–$235,000. A rural family physician earns $250,000–$280,000; a dermatologist or orthopedic surgeon $500,000–$700,000. Over a four-year obligation the income differential from choosing rural primary care is $1–1.6 million. Forgiving $235,000 against that is about one-sixth of the decision.
What actually predicts rural practice, consistently across the literature: rural origin, rural training track and clinical rotations, stated intent at matriculation, and spouse's origin. Money is not on the list. Service-obligation scholarships remove a barrier for people already inclined; they do not redirect anyone.
The rural generalist pathway is family medicine with advanced procedural skills in obstetrics, anaesthetics or emergency medicine, on the Australian model developed for a comparable geography problem. A town of four thousand needs someone who can perform a caesarean. This is a training and licensure intervention, not an institutional one.
Rural-origin admissions run a pipeline from rural secondary schools with conditional guaranteed admission, rural placement throughout, and rural generalist residency. Japan's regional-quota model reserves seats for students from a prefecture with a service obligation and has measurably raised rural physician supply.
Black-serving pipeline expansion adds capacity at Howard, Meharry, Morehouse and Charles Drew plus new capacity. The outcome evidence is independent of the equity argument: racial concordance is a measurable clinical variable.
The Medicare residency cap is the current binding constraint — medical school seats have expanded substantially since 2006 while residency positions have not. Cap repeal allocates slots to shortage geography.
Nurse practitioners and physician assistants receive full practice authority in designated shortage areas. This expands supply; it is not a substitution question and should not be described as one.
Training is funded as public infrastructure rather than trainee debt, which also removes the debt-service argument against compensation compression.
The profession contracted supply deliberately before and will do it again.
Intent is immaterial. The effect is identical, incumbents hold the levers through residency accreditation, physician-dominated licensure boards and scope-of-practice law, and the remedy is the same either way. Asserting a cartel motive invites a fight over evidence that cannot be won.
Honesty about gaps. Distributed Healthcare has more unresolved specification than other Engines because operational complexity is higher; the items below are flagged for v10.2 specification or for outside expert review.
- Nursing is the largest health workforce and the primary hospital quality lever, and it does not yet have a designed section. Staffing minimums must be a condition of participation or the global budget becomes a nurse-cutting mechanism.
- Nursing-school faculty pay less than practice, so schools turn away qualified applicants. Closing that gap costs $2–3B a year and is the cheapest capacity purchase available.