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 170 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. Stephan Wyss, MDSouth San Francisco, CA 940801932287539
  2. Joanne Wyszomirski-Witkowski, MDRiverside, CA 925051962579813
  3. Guohua Xia, M.D., PH.D.Davis, CA 956181831391465
  4. Tom Xia, M.D.San Francisco, CA 941151255863080
  5. Anna Xiao, MDLos Angeles, CA 900331962424861
  6. Alan XieStockton, CA 952041528647203
  7. Glen Xiong, M.D.Sacramento, CA 958171114945102
  8. Shiquan Xiong, M.DBakersfield, CA 933121447480090
  9. Dongyan XuSanta Clara, CA 950511851928709
  10. Mindy Xu, MDMoreno Valley, CA 925551639913445
  11. Yang Xu, M.D.Mountain View, CA 940401093006983
  12. Yun Lin Xue, MDDaly City, CA 940151992505044
  13. Charles Xuereb, M.D.Mountain View, CA 940401578582185
  14. Di Xun, D.O.Atascadero, CA 934221245647841
  15. Ehab Yacoub, M.D.Northridge, CA 913241295884088
  16. Farzin Yaghmaie, M.D., M.A.Beverly Hills, CA 902101497993356
  17. Raisa Yagudayeva, D.OSan Diego, CA 921031942555990
  18. Daniel Yahya, M.D.San Leandro, CA 945781750408548
  19. Pegah Yakhchalian, MDFresno, CA 937021619679669
  20. Joseph Yakira, MDRiverside, CA 925051861569725
  21. Toshia Ann Yamaguchi, M.D.Riverside, CA 925031932558715
  22. Mason Yamashita, MDSan Diego, CA 921301982713517
  23. Tao Yan, MD, PHDLoma Linda, CA 923541396958682
  24. Xiaofeng Yan, MD, PHDFolsom, CA 956301740868124
  25. Segundina Yancha, MDVacaville, CA 956871972775336
  26. Jason Yanes, MDVentura, CA 930031245079870
  27. Amy Yang, M.D.San Francisco, CA 941151306048145
  28. Calvin Yang, M.D.Pasadena, CA 911011477859338
  29. Calvin Yang, M.D.Saratoga, CA 950701891869251
  30. Caroline Yang, MDLos Angeles, CA 900481437564630
  31. Chengxin Yang, MDNorwalk, CA 906501659312551
  32. Chien Shien Yang, MDSan Jose, CA 951261780025692
  33. Chin Po Paul Yang, MD PHDBurlingame, CA 940101730257726
  34. Chong Yang, D.O.Napa, CA 945581326303769
  35. Chunlin Yang, M.D.Roseville, CA 956611699878561
  36. Dan Yang, M.D.San Mateo, CA 944031114186319
  37. Esther YangOrange, CA 928681013208552
  38. Francis Yang, MD, MSRiverside, CA 925031386328441
  39. Guang Yang, MD PHDSan Diego, CA 921031386384063
  40. Huaiyu Yang, MDSan Mateo, CA 944031043346729
  41. Jason Yang, M.D.Long Beach, CA 908021427105683
  42. Jun Yang, M.D.Alhambra, CA 918011043440084
  43. Kimberly Yang, MDSan Mateo, CA 944031356579692
  44. Phillip YangSan Francisco, CA 941431114622651
  45. Thomas Yang, MDSanta Clara, CA 950511255418182
  46. Tony Yang, M.D., PH.D.San Diego, CA 921031982654927
  47. William Yang, MDSylmar, CA 913421710565999
  48. William Yang, MDSan Jose, CA 951121740741172
  49. Yvonne Yang, M.D., PH.D.Los Angeles, CA 900241083932529
  50. Zhongshu Yang, M.D., PH.D.Sacramento, CA 958171710217591

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.