NPPES file of Aug 9, 2026

Obstetrics & Gynecology Physician in California

5,088 NPPES records list obstetrics & gynecology physician with a practice address in California, 13 per 100,000 residents, the 29th highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 97 of 102.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207V00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Los Angeles has the most, 381

  1. Los Angeles381
  2. San Diego279
  3. San Francisco250
  4. Sacramento198
  5. San Jose129

Obstetrics & Gynecology Physician records in California

  1. Sierra Washington, MDSan Diego, CA 921081386845162
  2. Kimberly Washkowiak, MDLa Jolla, CA 920371578656799
  3. Minako Watabe, M.D.Sylmar, CA 913421811149131
  4. Ai-Mae Watkins, M.D.Loma Linda, CA 923541114031663
  5. Alisha Watkins, MDRoseville, CA 956611851873293
  6. Billy Watkins, M.D.Salinas, CA 939011619940376
  7. Jayla Watkins, MDSacramento, CA 958171013593045
  8. Zenja Watkins, MDElk Grove, CA 956241730162421
  9. Carey Watson, M.D.Los Angeles, CA 900331730357328
  10. Catherine Watson, MDRoseville, CA 956611023168838
  11. Julie Watters, D.O.Camp Pendleton, CA 920551750729612
  12. Laura Watters, MDSacramento, CA 958251972814671
  13. Gary Watts, M.D.Paradise, CA 959691114463924
  14. Susan Ways, PHD MDModesto, CA 953501033287685
  15. Ronald Weakley, MDModesto, CA 953551730136011
  16. Amanda Weavil, MDSouth Lake Tahoe, CA 961501841592037
  17. Akilah Weber, MDSan Diego, CA 921231760652713
  18. Kenneth Weber, MDMountain View, CA 940401750454856
  19. Paul Weber, M.D., PH.D.Long Beach, CA 908081568442671
  20. Wayne Weber, MDDowney, CA 902411992896591
  21. Zhu Wei, MDIrvine, CA 926181174797914
  22. Nicholai Weibell, D.O.Visalia, CA 932771083732754
  23. William Weiderman, M.D.Eureka, CA 955031114992971
  24. George Weinberger, MDLos Angeles, CA 900251285630038
  25. Michael Weinberger, MDLos Angeles, CA 900271457422347
  26. Jonathan Weiner, MDSan Jose, CA 951191164508685
  27. Michael Weiner, MDModesto, CA 953551629169230
  28. Ashley Weinert, MDSanta Rosa, CA 954041932162419
  29. Stephen Weinstein, MDWalnut Creek, CA 945981366556102
  30. Issac Weintraub, MDLos Angeles, CA 900271346309911
  31. Erica Weiss, MDSan Francisco, CA 941151760556070
  32. Peter Weiss, MD FAOGBeverly Hills, CA 902101770682593
  33. Stacy Weiss, MDWoodland Hills, CA 913671841359460
  34. Dana Welle, D.O.Santa Cruz, CA 950651659423754
  35. Carla Wells, M.D.Irvine, CA 926041184787046
  36. John Wells, MDVisalia, CA 932911609824408
  37. Stephen Wells, MDWalnut Creek, CA 945981659385151
  38. Vincent Welter, M.D.Santa Ana, CA 927051366719106
  39. Ernestine Wen, M.DSanta Ana, CA 927051275738049
  40. Timothy Wen, MD, MPHLa Jolla, CA 920371104272814
  41. Alicia Wenberg, M.D.Chico, CA 959261578820080
  42. Jacqueline Wendt, MDSan Francisco, CA 941151447580691
  43. Somchai Werasophon, M.D.Santa Ana, CA 927051093881849
  44. Sahar Wertheimer, M.D.Los Angeles, CA 900481730593674
  45. Elizabeth West, M.D.Long Beach, CA 908081912254749
  46. Nancy West, MDAuburn, CA 956021083638332
  47. Ashley Westmoreland, MDLa Jolla, CA 920371356090401
  48. Sara Whetstone, MDSan Francisco, CA 941101528396223
  49. Taylor WhitakerTorrance, CA 905021609363548
  50. Emily Whitcomb, M.D.San Diego, CA 921031871519694

Source: CMS NPPES, primary taxonomy 207V00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 29 of 51 per resident

  1. Wisconsin13
  2. Ohio13
  3. Washington13
  4. California13
  5. Indiana13
  6. Georgia13
  7. 50 states and D.C.14

Source: CMS NPPES, primary taxonomy 207V00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

73.5% of these records appear in a Medicare file, against 75.6% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. California73.5%
  2. United States75.6%

Obstetrics & Gynecology Physician records in California, measured

  • In a Medicare file3,740 of 5,088 · 73.5% here, 75.6% nationally
  • In the CMS Doctors and Clinicians file2,703 · 53.1% here, 60.3% nationally
  • Not updated in five years or more3,239 · 63.7% here, 56.2% nationally
  • Median graduation year2004 · the 2,700 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207V00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

5,088 NPPES records list obstetrics & gynecology physician (207V00000X) as their primary taxonomy with a practice address in California: 13 per 100,000 residents against 14 nationally (50 states and D.C.). Los Angeles has 381 of them (7%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Texas3,524
  2. New York3,174
  3. Florida2,601
  4. Illinois2,062

States with a similar rate per 100,000

  1. Indiana13.0
  2. Georgia13.0
  3. Washington13.3
  4. Ohio13.3

The largest states

  1. Texas3,524
  2. New York3,174
  3. Florida2,601
  4. Illinois2,062
  5. Pennsylvania1,974

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.