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 113 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. Redia WrightOakland, CA 946051164270294
  2. Teresa Wright, MDSan Francisco, CA 941211164528188
  3. Zoe WrightAlameda, CA 945011215411178
  4. Sheila Wright-Scott, M.D.Lancaster, CA 935341124023999
  5. Karen Wrinkle, OTR/LN Hollywood, CA 916061871823062
  6. Lance Wrobel, M.D.Laguna Woods, CA 926371982607503
  7. Edmund Wroblewski, M.D.Santa Barbara, CA 931051053364471
  8. Danny Wu, MBCHBSan Francisco, CA 941151093972077
  9. Douglas Wu, MD PHDSan Diego, CA 921211861874885
  10. Elizabeth Wu, M.D.San Jose, CA 951241871774661
  11. Ju-Sung Wu, M.D.Oxnard, CA 930301093767469
  12. Katherine Wu, M.DLong Beach, CA 908061255526729
  13. Patrick Wu, MD, PHDAlbany, CA 947061275264640
  14. Yating WuSan Francisco, CA 941031730868944
  15. Richard Wurster, P.T.Roseville, CA 957471760923874
  16. Sonia Yacobian, M.D.Glendale, CA 912051881641488
  17. Shahryar Yadegar, M.D.Tarzana, CA 913561174546493
  18. Sima Yaftali, M.D.Thousand Oaks, CA 913611629078845
  19. Jonathan YagerManteca, CA 953371245783869
  20. Amy Yaghmai, M.D.Santa Monica, CA 904041821104274
  21. Zuhair Yahya, M.DSan Dimas, CA 917731477514057
  22. Parviz Yalzadeh, M.D.Torrance, CA 905051821076134
  23. Marina Yam, M.D.Los Gatos, CA 950321538107636
  24. Eri YamaguchiTorrance, CA 905021851929640
  25. Gina YamsuanFremont, CA 945361689985236
  26. Honghao Yang, MDAlhambra, CA 918011114946696
  27. Lucia Yang, M.D.Concord, CA 945201407890205
  28. Mayly YangFresno, CA 937271265251615
  29. Patrick Yang, MDLa Jolla, CA 920931902357486
  30. Suzanne Yang, M.D.La Quinta, CA 922531528064300
  31. Taeseob YangSouth Pasadena, CA 910301043408370
  32. Wen YangCosta Mesa, CA 926261437201092
  33. William Yanowsky, ATCSan Jose, CA 951361215072830
  34. Diana Yao, M.D.Long Beach, CA 908081588678833
  35. Weiping Yao, MDLodi, CA 952401861460735
  36. Arliene Yap, M.D.Los Angeles, CA 900171033295696
  37. Nizar Yaqub, MDMonterey, CA 939401942371455
  38. Farid Yasharpour, M.D.San Fernando, CA 913401073505764
  39. Farrah Yau, MD,FRCSCSan Francisco, CA 941141932485711
  40. Joyce Ycasas, MPHSan Francisco, CA 941101750060927
  41. Jay Yeager, COTAPlacentia, CA 928701962696575
  42. Rosalinda Yeatts, MTPorter Ranch, CA 913261669731915
  43. Christine Yee, M.D.Sacramento, CA 958171013050962
  44. James Yee, MDFolsom, CA 956301467567388
  45. Peter Yeh, M.DLong Beach, CA 908061154516615
  46. Sunny Yeh, M.D.San Gabriel, CA 917761124056429
  47. Hung-Chou Yen, M.D.Hacienda Heights, CA 917451902996077
  48. Jesica YepezModesto, CA 953501093680712
  49. Kateryna YermolaievaSan Francisco, CA 941241891318374
  50. David Yerzley, M.D.Burbank, CA 915061386716611

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.