taxonomy_description=Gynecologist → 0 resultstaxonomy_description=Gynecology (207VG0400X, gynecology-only) → 15 results in Memphistaxonomy_description=Obstetrics+%26+Gynecology (207V00000X, combined) → 65 results in MemphisGynecology misses 81% of Memphis-area women's-health physicians. A rep querying only Obstetrics & Gynecology misses the narrower surgical gynecology-only population. Both queries are required for a complete territory list.
The distinction matters for product targeting. Gynecology-only physicians (207VG0400X) have opted out of obstetrics practice entirely — their scope is office and surgical gynecology. The combined OB/GYN population (207V00000X) spans deliveries, prenatal care, and gynecologic surgery. For minimally invasive gynecologic surgical devices or uro-gynecology products, the gynecology-only code is the more targeted starting point. For contraceptive devices used across the full women's-health spectrum, you need both.
For the companion guide to the full OB/GYN population, see Find OB/GYN doctors by ZIP code.
| Market | Gynecology (207VG0400X) | OB/GYN (207V00000X, Memphis comparison) | Notes |
|---|---|---|---|
| New York, NY | 200+ | — | Gynecology-only caps at 200+ |
| Chicago, IL | 200+ | — | Capped |
| Los Angeles, CA | 200+ | — | Capped |
| Houston, TX | 92 | — | Complete city count |
| Phoenix, AZ | 70 | — | Complete |
| Nashville, TN | 49 | — | Complete |
| Memphis, TN | 15 | 65 | 8 NPI-1 / 7 NPI-2; OB/GYN 4× larger |
| Wyoming (statewide) | 19 | — | Complete — whole state |
| Vermont (statewide) | 20 | — | Complete — whole state |
Source: CMS NPI Registry API v2.1, June 13, 2026. "200+" = cap reached. Memphis OB/GYN figure from the same date. Download: npi-counts-gynecology.json
| NUCC code | Taxonomy string (exact) | Description |
|---|---|---|
| 207V00000X | Obstetrics & Gynecology |
Combined OB/GYN — the majority of women's-health physicians |
| 207VG0400X | Obstetrics & Gynecology, Gynecology |
Gynecology-only subspecialty (no obstetrics) |
| 207VX0000X | Obstetrics & Gynecology, Obstetrics |
Obstetrics-only subspecialty |
| 207VM0101X | Obstetrics & Gynecology, Maternal & Fetal Medicine |
High-risk OB (perinatologists) |
| 207VE0102X | Obstetrics & Gynecology, Reproductive Endocrinology |
REI / fertility specialists |
If your product targets surgical gynecology (minimally invasive procedures, pelvic floor, endometrial), start with Gynecology. If it spans the full women's-health spectrum, query both Gynecology and Obstetrics+%26+Gynecology separately and combine results.
For gynecology-only: taxonomy_description=Gynecology. The NPI API prefix-matches, so "Gynecology" will match the full NUCC string "Obstetrics & Gynecology, Gynecology." Do not use "Gynecologist" — it returns zero results.
https://npiregistry.cms.hhs.gov/api/?version=2.1
&taxonomy_description=Gynecology
&city=Memphis&state=TN&limit=200Gynecology-only is a small subspecialty. Memphis returned 15 city-wide. In any mid-size or rural territory, plan for a 25–50 mile radius. Wyoming and Vermont each returned about 19–20 statewide — manageable as a statewide query.
The combined OB/GYN page (find-obgyn-by-zip-code.html) covers the subspecialties that live under Obstetrics & Gynecology — Gynecologic Oncology, Urogynecology (Female Pelvic Medicine), Reproductive Endocrinology. These are separate from the Gynecology-only code and are addressed there.
The getdork physician search tool handles the correct string, radius filtering, and CSV export. Pro users can run both gynecology and OB/GYN queries in sequence and export each for CRM merge-import.
| Market type | Suggested radius | Notes |
|---|---|---|
| Dense urban (NYC, Chicago, LA) | 10–20 miles | Caps at 200+; large gynecology-only population |
| Mid-size metro (Memphis, Nashville, Phoenix) | 25–50 miles | 15–70 records; use 50 miles to capture suburban surgical centers |
| Rural state (Wyoming, Vermont) | Statewide or 100+ miles | ~19–20 statewide; run statewide query |
The getdork physician search sends the correct taxonomy string, applies ZIP-radius filtering, and returns a CRM-ready result. Pro users can run separate exports for Gynecology and Obstetrics & Gynecology to build a complete women's-health call list.
Search Gynecology by ZIP — free"Obstetrics & Gynecology" (207V00000X) is the combined code — the vast majority of OB/GYN physicians enumerate here. Memphis returned 65 records. "Gynecology" (207VG0400X) is a subspecialty code for physicians who practice gynecology only, without obstetrics deliveries. Memphis returned 15. A complete women's-health call list requires both queries run separately.
The NPI registry uses NUCC taxonomy description strings, which are field names — not practitioner titles. There is no NUCC code with the descriptor "Gynecologist." The correct string is "Gynecology" for the subspecialty or "Obstetrics & Gynecology" for the combined specialty. Confirmed empirically: taxonomy_description=Gynecologist returns zero results with no error message.
In the Memphis Gynecology query (15 records, June 2026): 12 showed "Obstetrics & Gynecology, Gynecology" as primary taxonomy, confirming gynecology-only practice. One showed Maternal & Fetal Medicine, one showed Obstetrics, one showed Surgery. Of 15 total, 8 were NPI-1 individual physicians (7 MD/M.D. credentials) and 7 were NPI-2 organization entities.
Within the Obstetrics & Gynecology taxonomy group: 207V00000X (combined base), 207VG0400X (gynecology-only), 207VX0000X (obstetrics-only), 207VM0101X (Maternal & Fetal Medicine), 207VE0102X (Reproductive Endocrinology), 207VH0002X (Hospice and Palliative Medicine sub-code). Each is a separate code requiring its own query string.
Gynecology-only physicians tend to be more surgically focused — endometrial ablation, hysteroscopy, laparoscopic myomectomy, pessary fitting, and pelvic floor procedures. They do not manage obstetric patients. For minimally invasive gynecologic surgical instruments and uro-gynecology products, the Gynecology-only list is the more targeted call set. For contraceptives and prenatal diagnostics, the combined OB/GYN population (207V00000X) is relevant.
Yes — 19 is the complete active gynecology-only physician population enrolled in NPI across Wyoming. At that density, you can work the full state in a single territory cycle. The relevant question is whether your product targets gynecology-only practice specifically or the larger combined OB/GYN population. Running both queries reveals the full women's-health landscape: Wyoming's gynecology-only count is 19; the OB/GYN combined count would be substantially larger.
taxonomy_description=Gynecology. OB/GYN comparison: taxonomy_description=Obstetrics+%26+Gynecology. All figures are live API responses. Raw JSON responses are available for download above.