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 96 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. Bryan Waiss, M.D.San Leandro, CA 945771508944356
  2. Kevin Waits, D.O.Red Bluff, CA 960801811904626
  3. Ashten WaksOrange, CA 928681356847826
  4. Hadar Waldman, MDLos Angeles, CA 900251568778124
  5. Jeffrey Waldman, M.D.Concord, CA 945201427117456
  6. Wendy Waldman, M.D.Beverly Hills, CA 902101285084723
  7. Anne WalkerRolling Hills Estates, CA 902741548639172
  8. Cheryl Walker, M.D.Sacramento, CA 958171598749889
  9. Janet Walker, MDRoseville, CA 956611962580639
  10. Janette Walker, MDWalnut Creek, CA 945981831199280
  11. Kathy Walker, M.D. FACOGPasadena, CA 911061861495483
  12. Lorraine Walker, M.D.Newport Beach, CA 926631083760292
  13. Sara Walker, PASan Diego, CA 921231164205092
  14. Stephen Walker, MDMonterey, CA 939401518989805
  15. Tihele Walkowsky, M.D.Ventura, CA 930041902032808
  16. William Wallace, MDHarbor City, CA 907101477620342
  17. Meghan Wallman, MDSanta Barbara, CA 931051053607879
  18. Shelbie Walters, DOBakersfield, CA 933061689250011
  19. Carrie Wambach, M.D.Beverly Hills, CA 902101396939351
  20. Michael Wan, M.D.Fountain Valley, CA 927081588628788
  21. Vivian Wan, DOMountain View, CA 940401659832251
  22. Aiwei Wang, M.D.National City, CA 919501548339534
  23. Allyson Wang, M.D.Fontana, CA 923351417341439
  24. Angelia Wang, MD, MPHElk Grove, CA 957581174159115
  25. Canty WangSanta Monica, CA 904041881072346
  26. Charlie Wang, MDSacramento, CA 958231689932089
  27. Debra Wang, M.D.Burlingame, CA 940101982058566
  28. Erica Wang, M.D.San Francisco, CA 941211598933103
  29. George Wang, M.D.Monterey Park, CA 917541962499616
  30. Gloria Wang, M.D.Irvine, CA 926181558624072
  31. Haiping Wang, MDAlhambra, CA 918011033205869
  32. Karen Wang, M.D.Santa Cruz, CA 950641083978498
  33. Kuan I Wang, MDMonterey Park, CA 917541154471662
  34. Rita Wang, MDSanta Rosa, CA 954031932227758
  35. Shihyee Wang, MDRedwood City, CA 940631528312055
  36. Shirley Wang, M.D.Stanford, CA 943051053595686
  37. Jing Wang Chiang, MDStanford, CA 943051346215100
  38. Eryn Wanyonyi, MD, MSLos Angeles, CA 900481962962753
  39. Anne Wara, MDSan Rafael, CA 949031063596039
  40. Anastasia Warde-MoreiraoSacramento, CA 958171427433929
  41. Bathsheba Wariso, MDYuba City, CA 959931316525686
  42. Janelle Warmington, M.D.Pasadena, CA 911881588981807
  43. Catherine Warner, MDRiverside, CA 925051801963616
  44. Kim Warner, M.D.Los Angeles, CA 900331568469781
  45. John Warren, MDSacramento, CA 958231528146248
  46. Joseph Warren, MDRedlands, CA 923731164581757
  47. Richard Warren, M.D.Mountain View, CA 940401760565592
  48. Linda Warren-Watson, MDLancaster, CA 935341518931856
  49. Nicole Waschak, M.D.Mission Hills, CA 913451417211707
  50. Mary Washburn, M.D.Garden Grove, CA 928401225203169

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.