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 39 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. Alok GuptaSan Francisco, CA 941031801600614
  2. Aruna Gupta, MDRiverside, CA 925061326114554
  3. Pawan Gupta, M.D.Santa Barbara, CA 931051831245810
  4. Ramesh Gupta, M.D.Bakersfield, CA 933091174586531
  5. Vinod Gupta, M.D.Simi Valley, CA 930651891765574
  6. Vinod Gupta, M.D.Visalia, CA 932911407902331
  7. Alicia Gurnee, C.D.Watsonville, CA 950761568765923
  8. Melvin Gurney, MDHealdsburg, CA 954481073577433
  9. John Gurskis, M.D.Fountain Valley, CA 927081417010182
  10. Elena Guslikov, NPWest Sacramento, CA 956911114371283
  11. George Gustafson, M.D.Redlands, CA 923741851310825
  12. Daila GutierrezSan Jose, CA 951261386353092
  13. Larissa GutierrezRiverside, CA 925061548929102
  14. Nicole GutierrezWhittier, CA 906021962952739
  15. Jeffrey Gutman, M.D.Los Gatos, CA 950321083649248
  16. Gregory Gutowski, MS, CCPOrange, CA 928681962942904
  17. Charlie GuzmanSanta Maria, CA 934581114228483
  18. Jennifer GuzmanSan Francisco, CA 941101295387736
  19. Jessica GuzmanLancaster, CA 935341013773944
  20. Michael Guzman HernandezSacramento, CA 958171508714759
  21. Jessica GyoriSan Francisco, CA 941091801150966
  22. Sandra Haase, C.S.Yorba Linda, CA 928861184705451
  23. Samantha Habeck, LE RNSan Francisco, CA 941081366142655
  24. Md Moksedul Habib, M.D.Bakersfield, CA 933091780647313
  25. Mehdi Habibi, M.D.Los Angeles, CA 900271083759997
  26. Scott Hacker, M.D.La Mesa, CA 919421750450805
  27. David Hadden, M.D.Fresno, CA 937041851407605
  28. Holly HaddockOakland, CA 946091295867018
  29. Fitimah HadleyOakland, CA 946051598966087
  30. Shane Hadley, ATNewport Beach, CA 926601326249772
  31. Natalie Haffner, DPTVallejo, CA 945891982804027
  32. Bruce Hagadorn, M.D.Irvine, CA 926181760512461
  33. Nicole HaglundPlacerville, CA 956671144547209
  34. Stephen Hahn-Smith, PH.D.Novato, CA 949491295931228
  35. Ali HaiderModesto, CA 953541750133880
  36. Lanny Hajdu, M.D.Beverly Hills, CA 902101003176017
  37. Istvan Hajduczki, M.D.Los Angeles, CA 900281619986726
  38. Albert Hakimian, M.D.Beverly Hills, CA 902111669593158
  39. Van Halbach, M.D.San Francisco, CA 941431710963855
  40. Erin Haley, MT-BCChico, CA 959261497130348
  41. Roger Haley, M.D. F.A.C.P.Visalia, CA 932771013078393
  42. Molly Hall, OTRSanta Rosa, CA 954031114396249
  43. Rhondalyn Hall, LEEmeryville, CA 946081356199681
  44. Stefan Haller, M.D.Fremont, CA 945381841232337
  45. Colleen Halligan, P.T.Downey, CA 902401336409044
  46. Charles Halsted, M.D.Sacramento, CA 958161558451708
  47. Hailey Hamaker, L.E.Pacific Grove, CA 939501649601709
  48. Richard Hambley, M.D.Monterey, CA 939401053306688
  49. Dennis Hamby, M.D.Daly City, CA 940151922099415
  50. Cynthia Hamerslagh, PTAExeter, CA 932211053682526

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.