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 77 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. Maureen Ries, M.D.La Jolla, CA 920371750544516
  2. Amy Riley, M.D.Roseville, CA 956611447215108
  3. Christine Riley, M.D.Walnut Creek, CA 945981194713834
  4. Ginger Riley, MDBellflower, CA 907061952478893
  5. Timothy Riley, M.D.San Diego, CA 921031124149653
  6. Paolo Rinaudo, M.D., PH.D.San Francisco, CA 941151396789228
  7. Alejandrina Rincon, M.D.Orange, CA 928681295929909
  8. Kevin Rine, M.D., F.A.C.O.G.Modesto, CA 953501841256633
  9. Michele Riopelle, M.D.Danville, CA 945261386714301
  10. Normelena Rios, MDSanta Clara, CA 950511679701767
  11. Ruthachae Rithaporn, M.D.Clovis, CA 936111629019583
  12. Douglas Rittenhouse, MDDaly City, CA 940151386717023
  13. Bianca RivasLong Beach, CA 908081285168419
  14. Gabrielle Rivera, MDSacramento, CA 958151013545839
  15. Juan Rivera, M.D.National City, CA 919501477698116
  16. Martha Rivera, M.D.Visalia, CA 932911932165206
  17. Natalie Rivera, MDRiverside, CA 925081427687680
  18. Rebecca Rivera, M.D.Bakersfield, CA 933011033129952
  19. Veronica Rivera, MDSan Jose, CA 951281477734754
  20. Aimee Rivers, M.D.Long Beach, CA 908061114169489
  21. Syed Rizvi, M.D.Hemet, CA 925441295770287
  22. Merle Robboy, MDNewport Beach, CA 926631639122799
  23. Dennis Roberts, DOIndio, CA 922011831123900
  24. Lauren Robertson, MD, MPHSan Diego, CA 921211710211867
  25. Patricia Robertson, M.D.San Francisco, CA 941431053352302
  26. Beth Robie, MDCampbell, CA 950081841376779
  27. Angel Robinson, MD MPHGlendale, CA 912061598067688
  28. Brittney Robinson, M.D.Pasadena, CA 911051255882346
  29. Kelly Robinson, MDLincoln, CA 956481871671446
  30. Ming Robinson, MDLaguna Hills, CA 926531184630956
  31. Nuriya Robinson, M.D.San Francisco, CA 941101801037171
  32. Peter Robinson, M.D.Los Angeles, CA 900151801900386
  33. Rhonda Robinson, MDDelano, CA 932151073626313
  34. Tracy Robinson, M.D.Los Angeles, CA 900151477696292
  35. Diana Robles, MDOakland, CA 946111790170991
  36. Peter Roca, M.D.Santa Maria, CA 934541659449379
  37. Anuradha Rode, M.D.Escondido, CA 920251447451729
  38. Carson Rodeffer, MDModesto, CA 953551679923387
  39. Bennye Rodgers, MDSacramento, CA 958231598843096
  40. Beatriz Rodriguez, MDPanorama City, CA 914021447375951
  41. Carlos Rodriguez, M.D.Mission Hills, CA 913451861434813
  42. Geronimo Rodriguez, MDPasadena, CA 911051508936675
  43. Hilda Rodriguez, MDTorrance, CA 905051558419549
  44. Madeline Rodriguez, M.D.San Diego, CA 921211962430439
  45. Noah Rodriguez, MDIrvine, CA 926181053498980
  46. Sonia Rodriguez, M.D.Salinas, CA 939011720051337
  47. Maria Rodriguez Ballestas, M.D.San Jose, CA 951241669768420
  48. Maricela Rodriguez-Gutierrez, MDLos Angeles, CA 900271568792646
  49. Elise Roeca, MDLa Jolla, CA 920391487214128
  50. Jennifer Roelands, MDFullerton, CA 928351164695409

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.