OB-GYNs in the United States
- OB-GYNs
- 46,193
- Linked to a hospital or group
- 37,705
- Hospitals with an OB-GYN
- 3,453
- Medical groups with an OB-GYN
- 5,909
- States and territories
- 55
There are 46,193 OB-GYNs in the US. California has the most, 5,321, and Corewell Health William Beaumont University Hospital has the most affiliated OB-GYNs of any hospital, 202. 34% finished medical school 30 or more years ago.
Find work emails and mobile numbers for all 46,193 US OB-GYNs
Validated work emails and mobile numbers for US OB-GYNs, found through healthcare waterfall enrichment, with a free Dmand AI account.
California has the most OB-GYNs, with 5,321
There are 46,193 OB-GYNs in the US, according to Dmand AI data. Texas is second with 3,506, and New York third with 3,120.
OB-GYNs in every other state and territory
- New Jersey1,426
- Virginia1,231
- Maryland1,125
- Massachusetts1,099
- Washington1,020
- Colorado902
- Tennessee894
- Minnesota891
- Missouri890
- Indiana870
- Wisconsin795
- Arizona770
- South Carolina760
- Connecticut683
- Louisiana649
- Oregon647
- Kentucky528
- Alabama512
- Oklahoma467
- Utah406
- Iowa360
- Kansas359
- Puerto Rico345
- Mississippi326
- Nevada309
- Hawaii294
- Nebraska279
- Arkansas262
- New Mexico255
- New Hampshire221
- West Virginia212
- Maine209
- Idaho199
- Washington, DC198
- Rhode Island198
- Delaware152
- Montana141
- Alaska129
- Vermont113
- South Dakota109
- North Dakota100
- Wyoming69
- American Samoa13
- U.S. Virgin Islands10
- Guam10
Source: NPPES NPI Registry (CMS)
For health IT teams
Dmand AI has the EHR for 40,046 of 46,193 US OB-GYNs, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Ob Hospitalist Group has the most OB-GYNs of any US medical group, with 794
The Permanente Medical Group, Inc. is second with 713, and Southern California Permanente Medical Group third with 565. Counts are OB-GYNs linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Corewell Health William Beaumont University Hospital has the most affiliated OB-GYNs of any US hospital, with 202
North Shore University Hospital in Manhasset is second with 188, and Cleveland Clinic Main Campus third with 142. US OB-GYNs are affiliated with 3,453 hospitals in all.
See every hospital and group for each US OB-GYN
Each public profile names one place an OB-GYN practices. A free account shows all of them, with the employer, the EHR and validated contacts.
Source: Dmand AI Affiliation Data
27,840 US OB-GYNs practice at a hospital, the most common site of care
25,454 also practice at a medical group site, and 3,317 at physician offices. An OB-GYN can practice at several kinds of site, so the shares overlap.
US OB-GYNs by site of care
- Hospitals27,840
- Medical group practices25,454
- Physician offices3,317
- FQHCs2,082
- Breast imaging centers1,653
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
34% of US OB-GYNs finished medical school 30 or more years ago
11,253 of the 33,085 US OB-GYNs with a graduation year on file. 4,966 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago4,966
- 10 to 19 years ago9,188
- 20 to 29 years ago7,678
- 30 to 39 years ago6,881
- 40 or more years ago4,372
Source: Dmand AI Professional Profile Data
Every US OB-GYN profile shows current hospitals and groups, Medicare activity and NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the US OB-GYN directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
OB-GYNs are HCPs whose primary specialty is obstetrics and gynecology (taxonomy code 207V00000X), with an active NPI and a US practice address.
FAQ
Frequently asked questions about OB-GYNs in the US
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many OB-GYNs are in the US?
46,193 OB-GYNs have an active NPI, a US practice address and obstetrics and gynecology (taxonomy code 207V00000X) as their primary specialty. 37,705 of them are linked to a hospital or medical group.
Which state has the most OB-GYNs?
California, with 5,321, followed by Texas with 3,506 and New York with 3,120.
Which medical groups have the most OB-GYNs?
Ob Hospitalist Group, with 794, followed by The Permanente Medical Group, Inc. with 713 and Southern California Permanente Medical Group with 565.
Which hospitals have the most OB-GYNs?
Corewell Health William Beaumont University Hospital, with 202 affiliated OB-GYNs, followed by North Shore University Hospital with 188 and Cleveland Clinic Main Campus with 142.
How many US OB-GYNs finished medical school 30 or more years ago?
11,253 of the 33,085 with a graduation year on file, or 34%. 4,966 graduated in the last 10 years.
What is the taxonomy code for obstetrics and gynecology?
207V00000X is the NPPES taxonomy code for obstetrics and gynecology. Sub-specialties with their own code are counted on their own lists.
Dmand AI
Find the right contacts among US OB-GYNs
Search 46,193 US OB-GYNs by state, hospital, medical group and the EHR they use, with validated work emails and mobile numbers.
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