Obstetrics Physician
NUCC 207VX0000X · Obstetrics & Gynecology
1,420 CMS NPPES-registered providers across 54 states · 233rd of 690 specialties by headcount.
Where this specialty sits in the corpus
Obstetrics Physician ranks 233rd of 690 NUCC specialties by CMS NPPES headcount (0.02% of all registered NPIs), densest in California; per resident New Mexico leads.
- 1,420
- NPPES providers in specialty
- 233rd
- of 690 specialties
- 453
- state-share HHI
- 61.1%
- Part D prescriber share
New Mexico is densest per capita (2.7× the national rate; Puerto Rico 1.9×); 2.5% of the Obstetrics & Gynecology category.
Taxonomy fingerprint
Obstetrics Physician (NUCC 207VX0000X; 61.1% Part D prescribers (868 of 1,420); avg 331 Part D claims/prescriber (359th of 572); Open Payments avg $976/physician (275th of 551; 670 paid, $654K total); state-share HHI 453; next-larger headcount neighbor Prosthetist (+31); next-smaller Gynecologic Oncology Physician (-13)).
Next larger: Prosthetist (1,451) Next smaller: Gynecologic Oncology Physician (1,407)
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
- New Mexico 2.7× · 1.1/100k
- Puerto Rico 1.9× · 0.8/100k
- Vermont 1.8× · 0.8/100k
- Montana 1.7× · 0.7/100k
- Washington 1.4× · 0.6/100k
Under-indexed vs national rate
- Nevada 0.52× · 0.2/100k
- Connecticut 0.59× · 0.2/100k
- Wisconsin 0.60× · 0.3/100k
- Idaho 0.61× · 0.3/100k
- Alabama 0.61× · 0.3/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | California | 165 |
| 2 | New York | 114 |
| 3 | Texas | 104 |
| 4 | Florida | 88 |
| 5 | Georgia | 62 |
| 6 | Illinois | 58 |
| 7 | Michigan | 58 |
| 8 | Pennsylvania | 53 |
| 9 | North Carolina | 48 |
| 10 | Virginia | 48 |
| 11 | Washington | 47 |
| 12 | Ohio | 46 |
| 13 | New Jersey | 35 |
| 14 | Massachusetts | 27 |
| 15 | Puerto Rico | 26 |
Top Cities for Obstetrics Physician
| # | City | Providers |
|---|---|---|
| 1 | New YorkNew York | 34 |
| 2 | HoustonTexas | 25 |
| 3 | AtlantaGeorgia | 20 |
| 4 | AlbuquerqueNew Mexico | 16 |
| 5 | Los AngelesCalifornia | 14 |
| 6 | BrooklynNew York | 13 |
| 7 | MemphisTennessee | 12 |
| 8 | ChicagoIllinois | 11 |
| 9 | RochesterMinnesota | 10 |
| 10 | DallasTexas | 10 |
| 11 | SeattleWashington | 10 |
| 12 | PhoenixArizona | 9 |
Sample Obstetrics Physician NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | John Boll, D.O.Williamsport, PA |
| 2 | William Black, M.D.Hammond, LA |
| 3 | Mohsin Ali, M.D.Cerritos, CA |
| 4 | Darrell Bowyer, M.D.,P.A.Burleson, TX |
| 5 | Samuel Staggers, M.D.Hammond, LA |
| 6 | William Beacham, M.D.Hammond, LA |
| 7 | Mapitiyage Wijesinghe, M.D.Anaheim, CA |
| 8 | Colleen Murphy, MDNorth Chicago, IL |
| 9 | Michael Gunzenhaeuser, M.D.Mansfield, OH |
| 10 | Jaqueline Worth, MDNew York, NY |
| 11 | Richard Dillon, MDTampa, FL |
| 12 | David Janowitz, M.D.Houston, TX |
| 13 | Alice Stek, M.D.Los Angeles, CA |
| 14 | Barry Fish, M.D.Fairlawn, OH |
| 15 | Jose Garcia-Vicario, MDPonce, PR |
| 16 | John Hepler, M.D.Lumberton, NC |
| 17 | John Murphy, MDBend, OR |
| 18 | George Bailey, M.D.Jennings, LA |
Related Specialties
Adjacent specialties in the NUCC Health Care Provider Taxonomy - same Obstetrics & Gynecology category.
Compare Obstetrics Physician vs Obstetrics & Gynecology Physician →
Frequently Asked Questions
How should I read Obstetrics Physician's mid-pack national roster?
How does Obstetrics Physician show up in Open Payments mid-pack?
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 2026-08-27.