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 134 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. Irwin Ruben, M.D.Beverly Hills, CA 902101386660645
  2. Adam Rubenstein, M.D.Daly City, CA 940151538286505
  3. Laura Rubenstein, M.D.San Francisco, CA 941151447698162
  4. Howard Rubin, M.D.San Francisco, CA 941021649354176
  5. Martin Rubin, MDSacramento, CA 958251508930819
  6. Robert Rubin, M.D., PH.D.Los Angeles, CA 900731194777870
  7. Eric Rubinstein, M.D.Nevada City, CA 959591326260175
  8. Maria Rubio, MD, PHDMonterey, CA 939401780022863
  9. Gabriela RuchelliSan Francisco, CA 941211396249397
  10. David Ruderman, M.D.Torrance, CA 905051235201377
  11. Herbert Ruderman, MDEncino, CA 914361285853648
  12. Alice Rudnick, M.D.Los Angeles, CA 900491689896516
  13. Craig Rudnick, MDWalnut Creek, CA 945971184831661
  14. David Ruecker, MDEncinitas, CA 920241174772123
  15. Alicia Ruelaz Maher, M.D.Santa Monica, CA 904011821072174
  16. Maureen Ruffell, M.D.Palo Alto, CA 943011629129895
  17. Amanda Ruiz, MDLos Angeles, CA 900331952647331
  18. Gustavo Ruiz, MDBeverly Hills, CA 902101639237886
  19. Janelle Ruiz, MDStanford, CA 943051609452002
  20. Mary RuizSan Pablo, CA 948061144371048
  21. Ruben Ruiz, MDSf, CA 941101235297318
  22. Jonathan Rulon, MDVallejo, CA 945891922186758
  23. Rashed Rumi, DONorwalk, CA 906501518487958
  24. Danielle Rumsey, DOOceanside, CA 920551710475355
  25. Ryan RuppertLos Angeles, CA 900331023699766
  26. Jon Rusciano, MDSanta Rosa, CA 954011598032385
  27. David Rusen, M.D.Menlo Park, CA 940251740402486
  28. Stoyan Rusev, M.D.,PH.D.Colton, CA 923241902978760
  29. Brittany Rush, MDOakland, CA 946111366947616
  30. Mary Rusher, M.D.San Diego, CA 921341851393656
  31. David Ruskin, M.D.Laguna Beach, CA 926511871651018
  32. Astrid Rusquellas, M.D.Berkeley, CA 947081740326578
  33. Jonathan Russ, M.D.Los Altos, CA 940221003960592
  34. Guy RussellStockton, CA 952021235213448
  35. James Russell, MDSan Francisco, CA 941151073755971
  36. Amelia Russo-Neustadt, M.D., PH.D.Irvine, CA 926181003268020
  37. Victor Ruterbusch, M.D.Cardiff By The Sea, CA 920071568541803
  38. Jennifer Ruthenburg, M.D.San Francisco, CA 941181356787105
  39. Breanna Ruthrauff, MDSacramento, CA 958171235112483
  40. Steven Ruths, MDVentura, CA 930011093748519
  41. Dillon Rutland, MDRancho Mirage, CA 922701568044303
  42. Joseph Rutland, MDNapa, CA 945581730427428
  43. Alan Ruttenberg, MD INCCanoga Park, CA 913031073680021
  44. Peter Rutter, MDMill Valley, CA 949411639105554
  45. Raymond Ruzicano, M.D.Walnut Creek, CA 945981811062508
  46. David Ryan, M.D.Atascadero, CA 934221689728198
  47. Lester Ryan, M.D.Fairfield, CA 945341487716718
  48. Patrick Ryan, MDSylmar, CA 913421528130069
  49. Sarah Ryan, MDSan Francisco, CA 941151942517701
  50. Sean Ryan, M.D.La Jolla, CA 920371821031261

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.