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 40 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. Jane Hamilton, LEPTorrance, CA 905041962835504
  2. Paige Hamilton-Conaty, MDDavis, CA 956161437092962
  3. Regina Hamlin, M.D.Fresno, CA 937201164486197
  4. Chris HammanEl Dorado, CA 956231740588029
  5. Andrea Hammer, PTLos Gatos, CA 950301023430931
  6. Ali Hamzeh, M.D.Santa Ana, CA 927011861436594
  7. Wenchiang Han, M.D.Marysville, CA 959011477545721
  8. Josh HananAnaheim, CA 928011396931127
  9. Paul Hanchett, M.D.Fresno, CA 937201396833075
  10. Nicholas HancockSan Francisco, CA 941031649468984
  11. Virginia Handley, CMTMorgan Hill, CA 950371003198805
  12. Cha HangEureka, CA 955031043168495
  13. Ciara HannaFairfield, CA 945341477180511
  14. Kim HannaVentura, CA 930031730374299
  15. Samouel Hanna, MDLos Angeles, CA 900111659012367
  16. Anne HannickThousand Oaks, CA 913601851073563
  17. David Hansen, MDLos Angeles, CA 900691770552374
  18. Elizabeth Hansen, IBCLCLafayette, CA 945491952620783
  19. Jan Hansen, M.D.Newport Beach, CA 926601760711071
  20. Janice HansenSaint Helena, CA 945741669845582
  21. Kevin Hansen, MDRoseville, CA 956611689661225
  22. Sharmin (nisha) HaqueAnaheim, CA 928011821534611
  23. Dana HaradaChino, CA 917101962794859
  24. Sean Hardcaslte, DVMPetaluma, CA 949521285096008
  25. Kimeron Hardin, PH.D.Palm Springs, CA 922621568595056
  26. Chawki Harfouch, M.D.Murrieta, CA 925631942462783
  27. Giovanni Harfouche, L.E.Martinez, CA 945531669131371
  28. Geetha HaridasSan Francisco, CA 941031598579302
  29. Radhika Hariharan, MDEscondido, CA 920251548447865
  30. Katrina HarlerSacramento, CA 958171508714924
  31. Karen HarmonSan Diego, CA 921101124664578
  32. Edwin Haronian, M.D.Sherman Oaks, CA 914111063480192
  33. Gilbert HarperSanta Maria, CA 934551013785153
  34. Grant HarperSan Francisco, CA 941031750846705
  35. Jill Harrell, MDOakland, CA 946091073656062
  36. Vincent HarriganOakland, CA 946121972944841
  37. Craig Harris, CMTStudio City, CA 916041144671728
  38. Gerald Harris, M.D.San Francisco, CA 941321730176983
  39. Gwendolyn HarrisSanta Barbara, CA 931011003931197
  40. Kristen HarrisNewport Beach, CA 926601285574715
  41. Marissa HarrisSacramento, CA 958171760298632
  42. Ronald Harris, RONALD HARRIS, M.D.La Jolla, CA 920371457461436
  43. Thomas Harris, M.D.San Diego, CA 921231316056492
  44. Wendy Ann Harrison, C.M.T.Palo Alto, CA 943061821212549
  45. Bree Harsh, ELECTROLYSISCorona Del Mar, CA 926251417635731
  46. Lauren HartSan Francisco, CA 941031699491290
  47. Lynette Hart, MDStockton, CA 952041639154438
  48. Richard Hart, M.D.Loma Linda, CA 923501447347901
  49. Steven Hartford, M.D.Glendale, CA 912081215904099
  50. Susan HartleyLos Angeles, CA 900201306926779

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.