Nurse Practitioner providers in the U.S.
96,627 NPPES records list nurse practitioner as their primary taxonomy, about 29 per 100,000 residents; Wisconsin and North Dakota have the most per resident. 54,319 of them appear in the Medicare Part D prescriber file: a registry record is not proof of an active practice.
What taxonomy code 363L00000X means
363L00000X is the National Uniform Claim Committee code for Nurse Practitioner, in the grouping Physician Assistants & Advanced Practice Nursing Providers. 96,627 NPPES records list it as their primary taxonomy (file of Aug 9, 2026).
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Source: NUCC Health Care Provider Taxonomy code set, definition as NUCC publishes it (nucc.org); counts from CMS NPPES.
Most per resident: the 8 highest
Source: CMS NPPES, primary taxonomy 363L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.
Boston has the most, 961
Source: CMS NPPES, primary taxonomy 363L00000X by practice city, file of Aug 9, 2026.
All 51 by state
| State | Records | Per 100,000 |
|---|---|---|
| Alabama | 1,442 | 28 |
| Alaska | 158 | 22 |
| Arizona | 1,423 | 19 |
| Arkansas | 682 | 22 |
| California | 8,223 | 21 |
| Colorado | 1,260 | 21 |
| Connecticut | 922 | 26 |
| Delaware | 545 | 53 |
| District of Columbia | 244 | 36 |
| Florida | 8,844 | 39 |
| Georgia | 3,109 | 28 |
| Hawaii | 220 | 15 |
| Idaho | 593 | 30 |
| Illinois | 4,892 | 39 |
| Indiana | 2,582 | 38 |
| Iowa | 1,294 | 40 |
| Kansas | 1,374 | 47 |
| Kentucky | 1,830 | 40 |
| Louisiana | 934 | 20 |
| Maine | 450 | 32 |
| Maryland | 1,248 | 20 |
| Massachusetts | 3,480 | 50 |
| Michigan | 3,574 | 36 |
| Minnesota | 2,582 | 45 |
| Mississippi | 1,075 | 37 |
| Missouri | 1,720 | 28 |
| State | Records | Per 100,000 |
|---|---|---|
| Montana | 287 | 25 |
| Nebraska | 987 | 50 |
| Nevada | 907 | 28 |
| New Hampshire | 412 | 29 |
| New Jersey | 1,961 | 21 |
| New Mexico | 559 | 26 |
| New York | 3,097 | 16 |
| North Carolina | 4,524 | 42 |
| North Dakota | 463 | 59 |
| Ohio | 4,254 | 36 |
| Oklahoma | 700 | 17 |
| Oregon | 599 | 14 |
| Pennsylvania | 3,916 | 30 |
| Rhode Island | 391 | 36 |
| South Carolina | 1,263 | 24 |
| South Dakota | 465 | 51 |
| Tennessee | 2,303 | 32 |
| Texas | 4,825 | 16 |
| Utah | 1,133 | 33 |
| Vermont | 173 | 27 |
| Virginia | 1,721 | 20 |
| Washington | 2,308 | 30 |
| West Virginia | 540 | 31 |
| Wisconsin | 3,995 | 68 |
| Wyoming | 112 | 19 |
In federal data
- NUCC code363L00000X
- Size rank22nd of 688 specialties by records (1.32% of all)
- Part D prescribers54,319 (56.2% of records)
- Part D claims1,109 a year per prescriber, on average (69th of 496)
- Industry payments38,884 physicians paid $30.8M in 2024, $792 each on average
- Concentration10 states hold half of all records
Source: CMS NPPES; Medicare Part D Prescriber PUF; CMS Open Payments 2024. Presence in these files is not a quality judgment.
A sample of nurse practitioner records
- Constance Hoskins, APRN, RNAnchorage, AK1235222654
- Richard Ervin, ANPAnchorage, AK1831271345
- Kathleen Knutson, ANPAnchorage, AK1114154549
- Whitney Powell, FNP-CAnchorage, AK1750114922
- Debra Hobbins, APRNAnchorage, AK1417942517
- Noelle Camarena, RNAnchorage, AK1053677203
- Shelly Alexander, FNPAnchorage, AK1881008498
- Melissa Danski, NPAnchorage, AK1871105791
- Amanda Fox, NP-CAnchorage, AK1922683655
- Bennett Jackson, ANPAnchorage, AK1568523157
- Stephanie Wrightsman-Birch, NPAnchorage, AK1558551259
- Lisa Jackson, ANPAnchorage, AK1770775827
- Irene Spieker, NURSE PRACTITIONERAnchorage, AK1063604957
- Novena Olibrice, FNPAnchorage, AK1205201498
- Jill Jasinski, NP-CAnchorage, AK1891949277
- Marie ForsterAnchorage, AK1679281471
Registry order, not a ranking. Search by name to find one provider.
Common questions
Where does the large Nurse Practitioner headcount concentrate?
96,627 Nurse Practitioner NPIs span 56 states; Florida alone holds 8,844. Top metros include Boston, MA; Miami, FL; Chicago, IL; Rochester, MN. Nationally this is 22nd of 688 NUCC codes.
How large is Nurse Practitioner's Open Payments footprint?
CMS Open Payments 2024 lists 38,884 Nurse Practitioner physicians totaling $30.8M (674,044 payments; average $792, 252nd of 470). Presence in Open Payments is not a quality judgment.
How heavy is Nurse Practitioner Part D prescribing at scale?
Among Nurse Practitioner NPIs, 54,319 appear in the Medicare Part D Prescriber PUF (average 1,109 claims and $202K drug cost per prescriber; 69th of 496 specialties by average claims). Non-prescribing clinicians in the same NUCC code are still in NPPES.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy (nucc.org); Medicare Part D Prescriber PUF; CMS Open Payments 2024. Counts are self-designated primary taxonomy, not board certification.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.