Psychiatry Physician
NUCC 2084P0800X · Psychiatry & Neurology
53,171 CMS NPPES-registered providers across 56 states · 37th of 690 specialties by headcount.
Where this specialty sits in the corpus
Psychiatry Physician ranks 37th of 690 NUCC specialties by CMS NPPES headcount (0.75% of all registered NPIs), densest in California; per resident District of Columbia leads.
- 53,171
- NPPES providers in specialty
- 37th
- of 690 specialties
- 539
- state-share HHI
- 60.5%
- Part D prescriber share
District of Columbia is densest per capita (3.9× the national rate; Massachusetts 2.4×); 60.6% of the Psychiatry & Neurology category.
Taxonomy fingerprint
Psychiatry Physician (NUCC 2084P0800X; 60.5% Part D prescribers (32,179 of 53,171); avg 1,038 Part D claims/prescriber (130th of 567); Open Payments avg $5K/physician (97th of 552; 12,580 paid, $62.2M total); state-share HHI 539; next-larger headcount neighbor Anesthesiology Physician (+3,261); next-smaller Athletic Trainer (-5,010)).
Next larger: Anesthesiology Physician (56,432) Next smaller: Athletic Trainer (48,161)
Population-adjusted state index
Each multiple is this specialty's providers-per-resident in a state divided by the national rate (Census Vintage population estimates). Raw headcount favors large states; this ranking surfaces denser markets.
Over-indexed vs national rate
- District of Columbia 3.9× · 61.9/100k
- Massachusetts 2.4× · 37.1/100k
- Rhode Island 2.1× · 33.5/100k
- New York 2× · 30.9/100k
- Connecticut 1.9× · 30.3/100k
Under-indexed vs national rate
- Guam 0.33× · 5.2/100k
- Wyoming 0.47× · 7.4/100k
- Idaho 0.47× · 7.4/100k
- Virgin Islands 0.51× · 8/100k
- Indiana 0.56× · 8.7/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 7,700 |
| 2 | New York | 6,044 |
| 3 | Texas | 2,982 |
| 4 | Massachusetts | 2,597 |
| 5 | Pennsylvania | 2,510 |
| 6 | Florida | 2,430 |
| 7 | Illinois | 1,958 |
| 8 | Michigan | 1,557 |
| 9 | North Carolina | 1,523 |
| 10 | Ohio | 1,467 |
| 11 | New Jersey | 1,425 |
| 12 | Maryland | 1,395 |
| 13 | Virginia | 1,262 |
| 14 | Georgia | 1,160 |
| 15 | Washington | 1,123 |
Top Cities for Psychiatry Physician
| # | City | Providers |
|---|---|---|
| 1 | New YorkNew York | 2,349 |
| 2 | Los AngelesCalifornia | 809 |
| 3 | BostonMassachusetts | 754 |
| 4 | ChicagoIllinois | 732 |
| 5 | PhiladelphiaPennsylvania | 696 |
| 6 | San FranciscoCalifornia | 680 |
| 7 | HoustonTexas | 651 |
| 8 | BrooklynNew York | 514 |
| 9 | San DiegoCalifornia | 476 |
| 10 | BaltimoreMaryland | 468 |
| 11 | SeattleWashington | 456 |
| 12 | WashingtonDistrict of Columbia | 416 |
Sample Psychiatry Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Robert Todd, M.D.Louisville, KY |
| 2 | Adrian Pellegrini, M.D.Louisville, KY |
| 3 | Sheila Roberts, MDLouisville, KY |
| 4 | Michael Kabar, M.D.Aliso Viejo, CA |
| 5 | Kenneth Terkelsen, M.D.Mashpee, MA |
| 6 | Paul Hill, M.D.Memphis, TN |
| 7 | Christopher Kauffman, M.D.Fort Myers, FL |
| 8 | Charles Lane, MDHot Springs, AR |
| 9 | Michael Jenkins, M.D.Amarillo, TX |
| 10 | Michael Ferguson, M.D.Ventura, CA |
| 11 | Daniel Boyd, M.D.Memphis, TN |
| 12 | Kelly Butler, MDConcord, NC |
| 13 | Daniel Willis, M.D.Amherst, NY |
| 14 | Maria Nickolova, M.D.Amherst, NY |
| 15 | Maria Cartagena, M.D.Amherst, NY |
| 16 | Michael Knight, MDNorth Hampton, NH |
| 17 | Andrew Reichert, M.D.Amherst, NY |
| 18 | Parwati Maddali, M.D.Rockledge, FL |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy - same Psychiatry & Neurology category.
Frequently Asked Questions
How many Psychiatry Physician providers are in the US?
Do Psychiatry Physician clinicians appear in Open Payments?
How much Part D prescribing does this specialty do?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.