A State-by-State Analysis of Healthcare Access and Infrastructure Strain in the U.S.

The United States spends more on healthcare than any other nation on earth — nearly $4.9 trillion in 2023 alone [1] — yet for millions of Americans, getting a doctor’s appointment has become harder than ever. Physician shortages are deepening. Emergency rooms are overflowing. But the strain is not distributed evenly across the country. In some states, patients face chronic shortages of providers, long travel distances, and extended wait times, while others remain comparatively well-served.

To understand exactly where the American healthcare system is under the most pressure, healthcare experts from ConciergeMD analyzed six core infrastructure indicators across all 50 states: the supply of primary care physicians, the depth of federally designated shortage areas, hospital bed capacity, emergency room utilization rates, ER wait times, and the share of residents without health insurance. The result is America’s Healthcare Strain Index: a composite ranking that measures healthcare pressure across all 50 states and highlights regional stress points, using the latest public data from the U.S. Census Bureau, Kaiser Family Foundation, Health Resources and Services Administration (HRSA), and Centers for Medicare & Medicaid Services (CMS).

The findings reveal a healthcare system under severe and uneven strain — and a widening divide between states where care remains accessible and those where access is steadily eroding.

Dr. Neal Kumar, board-certified dermatologist and co-founder of ConciergeMD, explains:

“We are not facing a temporary shortage — we are watching a structural collapse in slow motion. In the most strained states, patients are not just waiting longer; they are making dangerous decisions about whether to seek care at all. That is not a healthcare system. That is a gamble.”

The States Experiencing the Greatest Healthcare Strain

Texas ranks as the most healthcare-strained state in America. This ranking is supported by evidence across every dimension of the index: the state records the highest uninsured rate in the country at 16.7%, leaving more than 5.1 million residents without coverage — including 13.6% of Texas children, more than double the national children’s rate of 6% [2]. Its primary care physician density sits at just 119 per 100,000 residents, well below the national average of 133. More than half of Texas counties lack adequate access to primary care, and the Texas Department of State Health Services has projected that the physician shortage will continue to worsen through at least 2032 [3].

But Texas is only the most visible example of a nationwide pattern. Across the most strained states, the same structural failures repeat — too few physicians, too many uninsured, and emergency rooms absorbing what primary care cannot handle. Research confirms the chain reaction: where primary care shortages deepen, ER use rises in direct proportion [4].

• In some states like Indiana, Maine, Louisiana, and Kentucky, emergency rooms log more than 450 visits per 1,000 residents annually — not because of emergencies, but because there is nowhere else to go.
• Maryland, despite its reputation for strong medical institutions, records the longest ER wait times in the country: more than four hours per visit from arrival to departure for discharged patients.
• Utah has the lowest physician density of any state at just 109 per 100,000 residents — less than one doctor for every 900 people seeking primary care.

The Sun Belt Paradox

The Sun Belt has been the defining story of American migration for decades, with warm climate, economic opportunity, and lower costs of living drawing millions south and west. Between 2020 and 2024, Texas added more than 2 million residents and Florida more than 1.8 million, making them the two fastest-growing large states in the nation [5]. Yet many of the states experiencing the strongest population gains are also facing mounting pressure on healthcare access and provider capacity.

What many of those growth projections did not account for is this: seven of the ten most healthcare-strained states in this index are Sun Belt states. The paradox is that population growth and healthcare infrastructure investment have moved in opposite directions. As more people arrive, the strain on an already-stretched system intensifies.

The ongoing physician pipeline offers no near-term relief. In 2024, family medicine residency programs left 636 positions unfilled out of 5,231 available slots [6] — medical graduates continuing to choose higher-paying specialties over the primary care roles the Sun Belt desperately needs. The nation’s fastest-growing region is expanding without the healthcare workforce needed to serve its new residents.

Insurance Does Not Guarantee Access

One of the most important distinctions this index draws is one that rarely appears in the national healthcare debate: insurance coverage and healthcare access are not the same thing. A patient with insurance still needs a physician who is taking new patients, a hospital with available beds, and an appointment within a timeframe that makes medical sense.

• Massachusetts has the lowest uninsured rate at 2.8% and the highest physician density at 220 per 100,000 residents, yet still records a median emergency room wait time of 217 minutes and only 58.5% of primary care needs met.
• Rhode Island shows similar pressure, with ER wait times reaching 222 minutes and just 1.9 hospital beds per 1,000 residents, one of the lowest rates across the U.S.
• 95% of residents in New York have health insurance, but only one-third of the required primary care capacity is covered.
• North Carolina, where only 8.6% of residents are uninsured, ranks sixth overall, showing that severe system strain is not limited to the lowest-insurance states.

The data suggest a structural mismatch: insurance coverage and healthcare capacity are not aligned in many states. Expanding coverage alone does not resolve shortages in providers, hospital infrastructure, or emergency care availability.

The States That Fare Best — And What Sets Their Healthcare Systems Apart

At the other end of the index, the healthcare system in Hawaii ranks as the least strained in America. It combines one of the lowest uninsured rates in the country at 3.5%, with relatively strong physician density and modest ER utilization. Massachusetts, consistently ranked among the top performers in national healthcare assessments [7], also ranks among the least strained states in the index, recording the lowest uninsured rate of any state at just 2.8% and the highest physician density nationally at 220 physicians per 100,000 residents.

What separates these states is not simply wealth. It is the combination of robust insurance coverage, adequate physician supply, and the infrastructure to deliver routine care before patients reach crisis point. Massachusetts expanded healthcare coverage earlier and more aggressively than most states and has sustained that commitment over time. Hawaii benefits from a unique employer mandate that has kept uninsured rates low for decades. These are policy choices, which means the gaps highlighted in this index are not inevitable. They are the accumulated result of decisions made, and not made, over years.

From Access Gaps to Alternative Care Models

The findings of this index point in one direction: for a growing number of Americans, the conventional healthcare system is no longer delivering on its basic promise. In the most strained states, wait times stretch into weeks, ERs substitute for primary care, and millions navigate serious health decisions without a doctor they can reliably reach.

Against that backdrop, the rapid growth of membership-based concierge medicine — a $7.3 billion market projected to nearly double by 2030 [8] — does not come as a surprise. When the average wait for a new patient appointment reaches 31 days nationally, and up to 70 days in some cities [9], guaranteed next-day access to a personal physician stops being an upgrade. For patients managing chronic conditions, a two-month wait for a primary care appointment can have serious consequences. While concierge medicine is not a solution to the broader healthcare crisis, it does provide something the conventional system increasingly struggles to deliver: a continuous relationship with a physician, adequate time per appointment, and earlier points of intervention.

Sources

[1] Centers for Medicare & Medicaid Services, National Health Expenditure Data, 2023
[2] U.S. Census Bureau ACS (via Cover Texas Now), September 2025
[3] Texas Legislative Study Group, “The Texas Healthcare Crisis: Millions Uninsured, Physician Shortages, and the Fight for Women’s Care,” February 2025
[4] Richman et al., “National Study of the Relation of Primary Care Shortages to Emergency Department Utilization,” Academic Emergency Medicine, March 2007
[5] U.S. Census Bureau: Net International Migration Drives Highest U.S. Population Growth in Decades
[6] AAFP, 2024 NRMP Match Results for Family Medicine
[7] Commonwealth Fund, 2025 Scorecard on State Health System Performance, June 2025
[8] Grand View Research, U.S. Concierge Medicine Market Report, 2024
[9] AMN Healthcare, 2025 Survey of Physician Appointment Wait Times, May 2025

Methodology & Resources

America’s Healthcare Strain Index ranks all 50 U.S. states on a composite index built from six equally weighted factors: primary care physician density, primary care shortage area coverage, hospital bed capacity, emergency room utilization, ER wait times, and uninsured rates. Each factor is scored on a 0–100 scale calibrated so that higher scores reflect greater strain. The six scores are summed and rescaled to a final 0–100 composite. All underlying data come from the U.S. Census Bureau, KFF (drawing on AHA, HRSA, and Redi-Data), and CMS.

A full methodology document is available for download, including data sources, scoring formulas, factor definitions, and all sources referenced in this article and used in the creation of the index.