Provider directory · by state

NPI Lookup by State

Browse the NPI registry by state. Each state hub lists healthcare providers and organizations by specialty and city, drawn from the public CMS NPPES data file. Choose a state to start looking up NPI numbers.

All 50 states & DC

Alabama 94,056 Alaska 35,695 Arizona 174,513 Arkansas 85,280 California 1,169,102 Colorado 194,584 Connecticut 104,574 Delaware 27,662 District of Columbia 52,426 Florida 646,119 Georgia 228,143 Hawaii 40,569 Idaho 45,578 Illinois 315,801 Indiana 153,907 Iowa 65,096 Kansas 71,655 Kentucky 112,140 Louisiana 124,734 Maine 42,953 Maryland 212,944 Massachusetts 256,759 Michigan 352,661 Minnesota 167,079 Mississippi 57,532 Missouri 147,379 Montana 29,735 Nebraska 90,370 Nevada 121,507 New Hampshire 40,363 New Jersey 232,067 New Mexico 68,884 New York 652,929 North Carolina 273,759 North Dakota 27,251 Ohio 403,239 Oklahoma 116,170 Oregon 148,786 Pennsylvania 333,570 Rhode Island 31,847 South Carolina 115,211 South Dakota 22,958 Tennessee 158,745 Texas 600,409 Utah 94,436 Vermont 18,997 Virginia 198,820 Washington 241,131 West Virginia 89,945 Wisconsin 142,780 Wyoming 18,158

Source: CMS NPPES (public data). Snapshot 2026-07-13.

Frequently asked questions

How do I look up an NPI number by state?

Choose a state below to open its provider hub, then browse by specialty and city or search within that state. NPI numbers are federal, so every state hub draws on the same CMS NPPES data.

Are NPI numbers issued by each state?

No. NPIs are issued nationally by CMS, not by individual states. A state hub simply filters the national registry to providers with a practice location in that state.

How many providers are in each state?

The count next to each state is the number of providers and organizations in our latest NPPES snapshot with a practice address there.