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 84 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. Amanda Sheridan, MDLong Beach, CA 908071710372420
  2. Andrea Sherman, M.D.Sacramento, CA 958171063550903
  3. Lisa Sherman, MDOakland, CA 946111851479620
  4. Cecile Sherrod, M.D.Bakersfield, CA 933011457688418
  5. Raghu Shettigar, MDNational City, CA 919501528120540
  6. Pallavi Shikaripur Nadig, M.D.Dublin, CA 945681306073309
  7. Thomas Shima, M.D.Vista, CA 920831619040169
  8. Eun Shin, MDLos Angeles, CA 900201073665436
  9. Karen Shin, MDLos Altos, CA 940221598858623
  10. Rachel Shin, MD MPHLos Angeles, CA 900481841852522
  11. Rebecca ShinLos Angeles, CA 900331649913914
  12. Dana Shipp, M.D.Del Mar, CA 920141699790493
  13. Elizabeth ShiraziSacramento, CA 958251417583550
  14. Gertrude Shiu, MDSacramento, CA 958161679645485
  15. Erin Shiv, M.D.San Diego, CA 921081588074397
  16. Donovan Shively, MDFairfield, CA 945341063485217
  17. Abiade Short, M.D.San Diego, CA 921131750559589
  18. Rachel Shu, MDSan Francisco, CA 941181942358577
  19. Tiffany Shu, M.D.Elk Grove, CA 957581326213612
  20. Ariel Shuckett, M.D., M.P.H., M.A.San Diego, CA 921231245590124
  21. Pratima Shukla, MDPleasanton, CA 945881730231952
  22. May Shung, M.D.San Diego, CA 921201205153038
  23. Shermilla Shunmugham, MDStockton, CA 952041437158706
  24. Elena Siani, MDOakland, CA 946011598299299
  25. Sam Siddighi, M.D.Loma Linda, CA 923501336207844
  26. Rabia Siddik-Ahmad, M.D.Burlingame, CA 940101467778597
  27. Seema Sidhu, MDSan Jose, CA 951191497831929
  28. Dennis SieglerPalo Alto, CA 943011174687743
  29. Stella Sien, D.O.Colton, CA 923241558592444
  30. Richard Sieve, M. D.San Jose, CA 951291700982394
  31. Edward Sigall, MDBeverly Hills, CA 902111598707457
  32. Emily Sikking, MDSanta Monica, CA 904041780632984
  33. Tanisha Silas-Young, MDVacaville, CA 956881881897841
  34. Taaly Silberstein, M.D.Tarzana, CA 913561518993708
  35. Allan Silver, MDLa Jolla, CA 920371699868810
  36. Roy Silver, M.D.Los Angeles, CA 900171962465310
  37. Elizabeth Silverman, MDLa Jolla, CA 920371730242942
  38. Ira Silverman, M.D.Ventura, CA 930031316004005
  39. Martin Silverman, MDLos Gatos, CA 950321376508127
  40. Stanley Silverman, MDThousand Oaks, CA 913611679797542
  41. Laura Silverstein, MDDublin, CA 945681689833493
  42. Sarah Simko, MD, MPHPanorama City, CA 914021962064097
  43. Harris Simmonds, MDSan Rafael, CA 949011154471365
  44. Katharine Simmons, M.D.San Leandro, CA 945771508008624
  45. Pamela Simons, MDHayward, CA 945451124188115
  46. Erika Simpson, M.D.Oakland, CA 946111558659847
  47. Karen Simpson, MDPleasanton, CA 945881316019128
  48. Amanda Simsiman, MDOceanside, CA 920571528132560
  49. Alicia Sinclair, M.D.San Leandro, CA 945771235217092
  50. Emily Singer, MDSan Francisco, CA 941101760129704

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.