NPPES file of Aug 9, 2026

Specialist in California

5,749 NPPES records list specialist with a practice address in California, 15 per 100,000 residents, the 19th highest rate of 51. San Francisco and Los Angeles have the most; each record links to the provider's NPI and the California license search. Page 84 of 115.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · method

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

San Francisco has the most, 666

  1. San Francisco666
  2. Los Angeles301
  3. Sacramento241
  4. San Diego207
  5. Oakland198

Specialist records in California

  1. Jennifer ReyesOxnard, CA 930361467232306
  2. Emilia Reyes RodriguezRancho Cucamonga, CA 917301649037722
  3. Laurie Reynard, M.D.Santa Monica, CA 904011144225913
  4. Patcharin ReynoldsSan Francisco, CA 941031578751152
  5. Sarah ReynoldsMonterey, CA 939401407557911
  6. Tina Reynolds, ELECTROLOGISTLos Angeles, CA 900241497194518
  7. Janice Rha, MDLawndale, CA 902601750302261
  8. Tae Rhee, M.D.Garden Grove, CA 928431235207614
  9. Young123 Rhee, MDSanta Clara, CA 950501386780088
  10. Gillian RhettBerkeley, CA 947031154730703
  11. Elden RhoadsSun Valley, CA 913521073011995
  12. Barbara RhodesMurrieta, CA 925621326353962
  13. Christopher RhodesEureka, CA 955031952603185
  14. Keandra RhoneOakland, CA 946121760806335
  15. Porscha RhoneSan Francisco, CA 941241871216663
  16. Violet Ri, L.E.San Francisco, CA 941021992677728
  17. Nicholas RiansHuntington Beach, CA 926491306092150
  18. Juliana Ribar, NCSPSanta Rosa, CA 954011952591620
  19. Anne Rice, M.D.Monterey, CA 939401124102017
  20. James Richards, M.D.Los Angeles, CA 900451235227778
  21. Ken Richards, PTVentura, CA 930031083610018
  22. Kirk Richards, PTVentura, CA 930031609872639
  23. Lawrence Richards, MDOakland, CA 946021104016351
  24. Shirley Richards, FNP-CMarysville, CA 959011821124520
  25. Sonia Richards, M.D.Encino, CA 914361780659953
  26. James Richardson, M.D.Bishop, CA 935141417054511
  27. Richard Richley, MDSan Diego, CA 921101851314660
  28. Harvey Richmond, M.D.Beverly Hills, CA 902101154440329
  29. Bradley Ridges, M.TRialto, CA 923761568656247
  30. Lisa Riech, P.T.A.Rancho Santa Margarita, CA 926881245445774
  31. Francis Riegler, MDPalmdale, CA 935511750379947
  32. Mark Rierson, LACSan Diego, CA 921031376040923
  33. Jeffrey Ries, D.O.Upland, CA 917861780647735
  34. Dennis Riff, M.D.Anaheim, CA 928011922004662
  35. Christie Rigg, LMFTEl Cerrito, CA 945301417074972
  36. Jeffrey Riker, M.D.Long Beach, CA 908061003840018
  37. Donald Rink, M.D.Santa Barbara, CA 931051780603779
  38. John Riordan, MDSan Francisco, CA 941151619040227
  39. Angel RiosSan Francisco, CA 941031992177836
  40. Brigiett Ritchie, OMTClovis, CA 936111205553039
  41. Yooppadee Rithaporn, M.D.Fresno, CA 937031770528499
  42. Richard Ritter, M.D.Anaheim, CA 928011013002450
  43. Richard Ritter, PTSan Francisco, CA 941151750543625
  44. Adrian RiveraAnaheim, CA 928011104075605
  45. Elizabet RiveraNovato, CA 949491649147737
  46. John RiveraMontebello, CA 906401427279629
  47. Marcelo Rivera, M.D.Poway, CA 920641942311311
  48. Mercedes RiveraSanta Maria, CA 934551255407425
  49. Olivia RiveraSan Francisco, CA 941101134592488
  50. Tiffany Rivera, HHPSan Diego, CA 921031306965595

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 19 of 51 per resident

  1. Massachusetts16
  2. West Virginia15
  3. Maryland15
  4. California15
  5. Minnesota15
  6. Delaware13
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

29.6% of these records appear in a Medicare file, against 17.0% 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. California29.6%
  2. United States17.0%

Specialist records in California, measured

  • In a Medicare file1,704 of 5,749 · 29.6% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file1,076 · 18.7% here, 11.1% nationally
  • Not updated in five years or more4,403 · 76.6% here, 77.3% nationally
  • Median graduation year1989 · the 1,075 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

5,749 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in California: 15 per 100,000 residents against 18 nationally (50 states and D.C.). San Francisco has 666 of them (12%).

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. Florida2,685
  2. Washington2,609
  3. Pennsylvania2,031
  4. Texas1,716

States with a similar rate per 100,000

  1. Minnesota14.6
  2. Maryland15.2
  3. West Virginia15.4
  4. Massachusetts15.7

The largest states

  1. New York22,636
  2. Florida2,685
  3. Washington2,609
  4. Pennsylvania2,031
  5. Texas1,716

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.