The Scope of the Shortage

HRSA maintains a continuously updated registry of Health Professional Shortage Areas across the country. As of the most recent data, over 8,000 primary care HPSAs have been designated, covering more than 100 million Americans. To eliminate these shortages entirely, HRSA estimates the country would need an additional 17,000+ primary care practitioners.

On PlainHealthAccess, you can explore this data at the state level to see which states have the highest concentration of shortage areas, or at the county level to check whether your specific community is affected. The data reveals that shortages are not limited to remote rural areas — many urban neighborhoods, particularly in low-income communities, carry HPSA designations.

The shortage has worsened steadily over the past two decades despite federal programs designed to address it. The core challenge is structural: the financial incentives in American healthcare favor specialty practice over primary care, drawing new physicians away from the front line of patient care.

HPSA vs. MUA: Two Different Measures of Underservice

What it tells you: HPSAs measure whether there are enough providers for the population. MUAs measure whether the population faces barriers to accessing care — a broader concept that includes poverty, age distribution, and health outcomes alongside provider counts. A community can be provider-adequate but still medically underserved if its population faces significant access barriers.

What it does not tell you: Neither designation captures the full picture of healthcare access. Insurance coverage, transportation availability, cultural and language barriers, and provider quality are all significant factors not reflected in HPSA or MUA designations. A county can have adequate provider numbers but still have poor access if most providers do not accept Medicaid.

How to use it: Check both HPSA and MUA designations for your county on PlainHealthAccess. Counties with both designations face the most comprehensive access challenges. Counties with only an MUA (but not an HPSA) may have providers but serve populations with significant barriers to reaching them.

What Drives the Geographic Maldistribution

What it tells you: Providers cluster where quality of life is high, compensation is competitive, and professional support networks exist. This means urban and suburban areas in high-income states attract disproportionate shares of new providers, while rural areas and lower-income states struggle to recruit and retain them. The pattern is self-reinforcing: areas with few providers are less attractive to new providers, who prefer collegial practice environments.

What it does not tell you: Federal programs (National Health Service Corps, loan repayment programs, J-1 visa waivers) have successfully placed thousands of providers in shortage areas. But many leave when their service obligation ends. The data shows a snapshot of current designation status, not the churn of providers entering and leaving shortage areas.

How to use it: Compare HPSA scores across states on the rankings page. States with consistently high scores across most counties face systemic workforce challenges that individual programs cannot easily solve.

What This Means for You

Step 1 — Check your county. Look up your county on PlainHealthAccess to see primary care, dental, and mental health HPSA status and scores.

Step 2 — Understand what the score means. HPSA scores above 15 indicate severe shortages. Scores above 20 are critical — these areas face the longest wait times and fewest provider options.

Step 3 — Check neighboring counties. If your county is underserved, the nearest adequate care may be in an adjacent county. Compare provider availability across your area.

Step 4 — Know your options. HPSA-designated areas qualify for federally-funded health centers, National Health Service Corps providers, and other programs. Check HRSA's health center finder for federally-supported options in your area.

Frequently Asked Questions

How many Americans live in primary care shortage areas?

Over 100 million Americans — roughly one in three — live in designated primary care HPSAs where provider-to-population ratios fall below federal adequacy thresholds. HRSA estimates an additional 17,000+ practitioners would be needed to eliminate all designated shortages.

What causes primary care shortages?

An aging physician workforce (one-third of primary care doctors are over 55), medical graduates choosing specialties over primary care due to pay differentials, geographic maldistribution favoring urban areas, and growing demand from an aging population. The pipeline of new providers is not keeping pace with retirements and attrition.

What is the difference between an HPSA and a MUA?

HPSAs measure provider-to-population ratios — whether there are enough doctors. MUAs use a broader Index of Medical Underservice including poverty, elderly population percentage, infant mortality, and provider availability. An area can be designated as one, both, or neither depending on which criteria it meets.

How does living in a shortage area affect health outcomes?

Research consistently shows that primary care shortage areas have higher rates of preventable hospitalizations, later-stage cancer diagnoses, worse chronic disease management, and higher overall mortality. When primary care is hard to access, people delay care and skip preventive screenings, leading to worse outcomes.