Internal Medicine Doctors in the United States
Data updated monthly · Last refresh November 2026
148,646 Internal Medicine providers practice across all 50 states and Washington DC, and 34% received drug or device company payments in 2025. California has the most at 17,781. Listings are drawn from federal public records and are not endorsements.
148,646providers
51states
34%with industry payments
Industry payment share ranges from 54% in Mississippi to 4% in Vermont, among states with 25 or more providers.
Internal Medicine providers by state
| State | Providers | Received payments |
|---|
| Internal Medicine in California | 17,781 | 32% |
| Internal Medicine in New York | 12,093 | 35% |
| Internal Medicine in Florida | 10,202 | 44% |
| Internal Medicine in Texas | 9,176 | 43% |
| Internal Medicine in Pennsylvania | 7,238 | 32% |
| Internal Medicine in Illinois | 7,170 | 30% |
| Internal Medicine in Massachusetts | 6,783 | 20% |
| Internal Medicine in Michigan | 5,699 | 36% |
| Internal Medicine in Ohio | 5,274 | 36% |
| Internal Medicine in New Jersey | 4,681 | 47% |
| Internal Medicine in North Carolina | 4,048 | 36% |
| Internal Medicine in Georgia | 3,919 | 48% |
| Internal Medicine in Maryland | 3,886 | 34% |
| Internal Medicine in Virginia | 3,598 | 30% |
| Internal Medicine in Washington | 3,105 | 15% |
| Internal Medicine in Arizona | 2,877 | 33% |
| Internal Medicine in Minnesota | 2,623 | 9% |
| Internal Medicine in Connecticut | 2,606 | 29% |
| Internal Medicine in Tennessee | 2,598 | 40% |
| Internal Medicine in Missouri | 2,579 | 37% |
| Internal Medicine in Indiana | 2,130 | 37% |
| Internal Medicine in Oregon | 2,118 | 14% |
| Internal Medicine in Wisconsin | 2,084 | 17% |
| Internal Medicine in Colorado | 2,048 | 20% |
| Internal Medicine in South Carolina | 1,864 | 43% |
| Internal Medicine in Louisiana | 1,745 | 51% |
| Internal Medicine in Alabama | 1,699 | 50% |
| Internal Medicine in Kentucky | 1,514 | 48% |
| Internal Medicine in Nevada | 1,216 | 39% |
| Internal Medicine in Oklahoma | 1,109 | 37% |
| Internal Medicine in Rhode Island | 1,025 | 27% |
| Internal Medicine in Kansas | 1,011 | 32% |
| Internal Medicine in Mississippi | 976 | 54% |
| Internal Medicine in Hawaii | 900 | 31% |
| Internal Medicine in Washington DC | 890 | 28% |
| Internal Medicine in Iowa | 859 | 27% |
| Internal Medicine in Nebraska | 801 | 35% |
| Internal Medicine in Arkansas | 767 | 42% |
| Internal Medicine in New Mexico | 766 | 22% |
| Internal Medicine in West Virginia | 758 | 35% |
| Internal Medicine in New Hampshire | 669 | 17% |
| Internal Medicine in Utah | 654 | 28% |
| Internal Medicine in Delaware | 608 | 29% |
| Internal Medicine in Maine | 599 | 11% |
| Internal Medicine in Idaho | 454 | 18% |
| Internal Medicine in Vermont | 329 | 4% |
| Internal Medicine in Montana | 319 | 19% |
| Internal Medicine in North Dakota | 250 | 24% |
| Internal Medicine in South Dakota | 244 | 30% |
| Internal Medicine in Alaska | 174 | 21% |
| Internal Medicine in Wyoming | 130 | 24% |
Conditions Internal Medicine providers in the United States commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Internal Medicine providers. Individual practices vary, so confirm with the provider before booking.
- High blood pressure
- Type 2 diabetes
- High cholesterol
- Preventive care
- Chronic disease management
Common questions
How many Internal Medicine providers are there in the United States?There are 148,646 Internal Medicine providers with active NPI records across all 50 states and Washington DC, according to federal NPPES data refreshed monthly. California has the most at 17,781.
What share of Internal Medicine providers received drug or device company payments?50,125 of 148,646 Internal Medicine providers nationally (34%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program. The share is highest in Mississippi at 54% and lowest in Vermont at 4%.
What conditions do Internal Medicine providers treat?Internal Medicine providers commonly treat high blood pressure, type 2 diabetes, high cholesterol, preventive care, chronic disease management and related conditions. Individual practices vary.
Where does this data come from?Provider counts come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
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