OB/GYNs in California: 3,579 enrolled in Medicare
California has 3,579 OB/GYNs enrolled in Medicare in the CMS file dated Aug 18, 2026, or 9.1 per 100,000 residents. That ranks 35th of 51 (the states and DC); the US rate is 10.1. Most are in Los Angeles, 242. California holds 10% of the country's OB/GYNs.
By Ryan Doyle, founder of Doctor Email List. Published Oct 5, 2026.
Where California OB/GYNs practice
The five cities below hold 24% of California's OB/GYNs. 306 practices and hospitals in the state have at least one listed.
| City | OB/GYNs | Share of California |
|---|---|---|
| Los Angeles | 242 | 6.8% |
| San Francisco | 209 | 5.8% |
| San Diego | 166 | 4.6% |
| Sacramento | 163 | 4.6% |
| San Jose | 72 | 2% |
Largest practice groups for California OB/GYNs
86% of California OB/GYNs with a group on file sit in groups of 50 or more listed clinicians; the US figure is 80%.
| Practice or health system, as CMS prints it | California OB/GYNs listed |
|---|---|
| Permanente Medical Group Inc | 479 |
| Southern California Permanente Medical Group | 316 |
| Sutter Bay Medical Foundation | 185 |
| Regents of the University of California | 101 |
| Sutter Valley Medical Foundation | 78 |
California against the US
| Measure | California | United States |
|---|---|---|
| OB/GYNs per 100,000 residents | 9.1 | 10.1 |
| Women | 75% | 70% |
| Median year of medical school graduation | 2004 | 2005 |
| Offer telehealth | 21% | 11% |
| In groups of 50 or more listed clinicians | 86% | 80% |
Just above California: New Mexico, 9.1. Just below: Florida, 9.1. The range runs from Arizona (7.5) to Washington DC (29.0). The doctors per capita tool has every state for 51 specialties.
The OB/GYN email list is one national CSV, $295 one time; the 3,579 California rows are one filter away.
Buy the OB/GYN list, $295Questions about California OB/GYNs
3,579, enrolled in Medicare as of the CMS file dated Aug 18, 2026, or 9.1 per 100,000 residents. Los Angeles (242), San Francisco (209) and San Diego (166) lead the cities, and Permanente Medical Group Inc lists the most of any group, 479. Physicians who bill no Medicare patients are not in the file.
Not as a separate file: the OB/GYN list is national, $295 once. State and ZIP are on nearly every row, so the 3,579 California rows are one filter away.
OB/GYNs in other large states
Other specialties in California
Specialty email lists
National CSVs, one per specialty. City, state and ZIP are on the rows, so any state is one filter away.