NPPES file of Aug 9, 2026

Psychiatry Physician in California

8,673 NPPES records list psychiatry physician with a practice address in California, 22 per 100,000 residents, the 10th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 38 of 174.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 2084P0800X · 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, 987

  1. Los Angeles987
  2. San Francisco763
  3. San Diego527
  4. Sacramento331
  5. Palo Alto215

Psychiatry Physician records in California

  1. Colin Dias, M.D.Agoura Hills, CA 913011811029168
  2. Karina Diaz, MDSan Jose, CA 951111366025835
  3. Geoffrey Dibella, M.D.Newport Beach, CA 926601982730230
  4. Daniel Dickerson, D.O.Los Angeles, CA 900951336349091
  5. Michael Dickerson, M.D.Sacramento, CA 958161174782288
  6. Oxana Dickey, PMHNPBurlingame, CA 940101114400215
  7. Brittney Diebold, D.O.Oxnard, CA 930331699201004
  8. Pamela Diefenbach, M.D.Los Angeles, CA 900731437100609
  9. Danny Diep, MDPalo Alto, CA 943041295516391
  10. Shannon Diep, MDRiverside, CA 925031477308724
  11. Vincent Dilella, MDSouth San Francisco, CA 940801245318898
  12. Julia DillardSan Francisco, CA 941431144022666
  13. James Dilley, MDSan Francisco, CA 941101710912357
  14. Marcia Dillon, M.D.Berkeley, CA 947051447343777
  15. Steven Dilsaver, M.D.El Centro, CA 922431154463941
  16. Alex Dimitriu, MDMenlo Park, CA 940251184882037
  17. Nikolay Dimitrov, M.D.Fresno, CA 937031427412337
  18. James Dimon, M.D.San Francisco, CA 941151528346376
  19. Joel Dimsdale, M.D.San Diego, CA 921031306877568
  20. Daniel Dinaburg, MDSan Francisco, CA 941171184782666
  21. Hassan Dinakar, MDWatsonville, CA 950761922016294
  22. Franklin Dines, MDLos Angeles, CA 900241881763142
  23. Han Dinh, D.O.Fontana, CA 923351891106464
  24. Michael DinhPalo Alto, CA 943041356978639
  25. Courtney Dinicola, MDRiverside, CA 925211265161509
  26. David Dinicola, M.D.Riverside, CA 925031205966082
  27. Anthony Diomino, MDRiverside, CA 925031467209866
  28. Zeynab Diop, MD, MSCSacramento, CA 958171760186092
  29. Randolf Dipp, D.O.San Diego, CA 921011134109291
  30. Margaret Distler, M.D.Los Angeles, CA 900951265859250
  31. Denise Dittemore, M.D.San Bernardino, CA 924151649310335
  32. Susan Ditter, M.D., M.P.H.San Jose, CA 951281710188438
  33. Shilpa Diwan, M.D, M.P.HIrvine, CA 926121942457999
  34. Alison Dixon, MDSan Diego, CA 921821962999698
  35. Gus Dixon, M.D.Long Beach, CA 908141295971323
  36. Katharine Dixon, MDLa Jolla, CA 920371598705469
  37. Thomas Dixon, MD, PHDChula Vista, CA 919101144883190
  38. Elouisa Dizon, MDAtascadero, CA 934231093971418
  39. Armen Djenderedjian, M.D.Torrance, CA 905021063573814
  40. Leah Dlugolecki, DOFresno, CA 937111790313161
  41. Andrew Do, M.D.Canoga Park, CA 913041518209683
  42. Harry DoHawthorne, CA 902501134513609
  43. Monika Do Valle, D.O.San Rafael, CA 949031780616201
  44. Bong Doan, M.D.Westminster, CA 926831528021516
  45. Forrest Doan, D.O.Bakersfield, CA 933071639412042
  46. Louis Doan, D.O.Napa, CA 945581255674982
  47. Tam Doan, MDBakersfield, CA 933061992559835
  48. Gregory Doane, MDBlythe, CA 922251992853824
  49. Kendra Dobalian, M.D.La Jolla, CA 920371134333701
  50. David Dobos, MDLake Elsinore, CA 925301548318348

Source: CMS NPPES, primary taxonomy 2084P0800X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 10 of 51 per resident

  1. Maryland23
  2. Maine23
  3. Hawaii23
  4. California22
  5. Pennsylvania21
  6. New Hampshire19
  7. 50 states and D.C.17

Source: CMS NPPES, primary taxonomy 2084P0800X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

67.4% of these records appear in a Medicare file, against 68.5% 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. California67.4%
  2. United States68.5%

Psychiatry Physician records in California, measured

  • In a Medicare file5,843 of 8,673 · 67.4% here, 68.5% nationally
  • In the CMS Doctors and Clinicians file3,298 · 38.0% here, 42.4% nationally
  • Not updated in five years or more4,714 · 54.4% here, 56.2% nationally
  • Median graduation year2005 · the 3,295 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 2084P0800X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

8,673 NPPES records list psychiatry physician (2084P0800X) as their primary taxonomy with a practice address in California: 22 per 100,000 residents against 17 nationally (50 states and D.C.). Los Angeles has 987 of them (11%).

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. New York6,589
  2. Texas3,318
  3. Florida2,744
  4. Massachusetts2,736

States with a similar rate per 100,000

  1. Hawaii23.1
  2. Maine23.4
  3. Maryland23.5
  4. Pennsylvania20.5

The largest states

  1. New York6,589
  2. Texas3,318
  3. Florida2,744
  4. Massachusetts2,736
  5. Pennsylvania2,662

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.