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 39 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. Helena Hong, MDLos Angeles, CA 900481245869825
  2. Jane Hong, MDAnaheim, CA 928011013933225
  3. Karen Hong, DOYuba City, CA 959911437484193
  4. Lindy Hong, DOSacramento, CA 958151245598937
  5. Mimi Hong, M.D.Torrance, CA 905021538219829
  6. Nicole Hong, MDSan Carlos, CA 940701093880171
  7. Tina Hong, MDFremont, CA 945381952691222
  8. Frans Honig, DOSanta Rosa, CA 954031679109581
  9. Kelly Hood, DOBakersfield, CA 933061003494923
  10. Frederick Hopkins, M.D.San Jose, CA 951161902996069
  11. Nicholas Hopkins, MDModesto, CA 953551528414133
  12. Stephen Hordynski, MDRedlands, CA 923731659311876
  13. Gwynneth HornerLos Angeles, CA 900951568996510
  14. Jordan Horowitz, MDSan Francisco, CA 941181942356175
  15. Robert Hosang, MDHayward, CA 945451558449306
  16. Negar Hosseinifar, DOLoma Linda, CA 923541982059366
  17. Dennis Hou, MDSan Jose, CA 951191245316751
  18. Eileen Hou, M.D.Merced, CA 953401558715508
  19. Kathryn Houston, M.D.San Francisco, CA 941101699988097
  20. Candace Howe, M.D.Newport Beach, CA 926631992928873
  21. Margaret Howe, MD/PHDModesto, CA 953501851679021
  22. Robert Howen, MDLodi, CA 952401497762249
  23. Christine Hrountas, MDSan Clemente, CA 926721639409329
  24. Jennifer Hsia, M.D.Sacramento, CA 958171316234156
  25. Jack Hsiao, MDSan Diego, CA 921211477633287
  26. Cheng Hsieh, M.D.Victorville, CA 923951558372649
  27. Gillian Hsieh, MDMountain View, CA 940401063765576
  28. Athena Hsu, MDLos Angeles, CA 900341346820016
  29. Chai-Lin Hsu, M.D.Newport Beach, CA 926631336191386
  30. Karen Hsu, MDOrange, CA 928691659733459
  31. Peggy Hsu, MDPleasanton, CA 945881285712372
  32. Senzan Hsu, M.D.Hayward, CA 945451184677940
  33. Yao Hsu, M.D.Los Angeles, CA 900221528112083
  34. Yung-Shee Hsu, M.D., MBASanta Monica, CA 904041245477652
  35. Emily Hu, MDDaly City, CA 940151649358946
  36. Kevin HuLoma Linda, CA 923541205220894
  37. Rena Hu, M.D.San Francisco, CA 941331275774374
  38. Jenny-Jean Hua, MDMountain View, CA 940401740397074
  39. Andy Huang, M.D.Los Angeles, CA 900951134244924
  40. Beryl Huang, MDRiverside, CA 925051730237793
  41. Louise Huang, M.D.Santa Rosa, CA 954051205948544
  42. Michael Huang, MDSan Jose, CA 951281902999188
  43. Pang-Hsiung Huang, M.D.Thousand Oaks, CA 913201760478408
  44. Stella Huang, D.O.Vallejo, CA 945891760610273
  45. Susan HuangSan Francisco, CA 941181518057322
  46. Tzong HuangOxnard, CA 930301407800121
  47. Frazier Hubbard, MDOakland, CA 946021891705489
  48. Robert Hubbell, MDWalnut Creek, CA 945981194156505
  49. Madeline Huber, MDSanta Rosa, CA 954031467536458
  50. Megan Huchko, MDSan Francisco, CA 941101811067655

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.