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 114 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. Patricia Yeshe, HHPCarlsbad, CA 920091437404829
  2. Xiong YinSan Francisco, CA 941031861919425
  3. Kent Yinger, M.D.Santa Rosa, CA 954031093815110
  4. Melkamu YirguOakland, CA 946091427188622
  5. Sandra YollesOakland, CA 946091831314517
  6. Frank Yoo, M.D.La Jolla, CA 920371295774545
  7. Jeung Yoo, MDBanning, CA 922201255405429
  8. Karis YoonSacramento, CA 958171881200277
  9. Luke Yoon, M.D.Los Angeles, CA 900201114007747
  10. Frederick Yorra, M.D.Tarzana, CA 913561770504896
  11. Samantha YoshidaPalm Springs, CA 922621811565674
  12. Peter Youn, M.D.Los Gatos, CA 950321285669762
  13. Bethany YoungSan Francisco, CA 941031811259161
  14. Edward YoungWalnut, CA 917891568900447
  15. Elaine YoungSan Francisco, CA 941031588199251
  16. Henry Young, M.D.Santa Maria, CA 934541235283565
  17. Jeffrey Young, MDLos Gatos, CA 950321912074709
  18. Jonathan YoungSan Leandro, CA 945771053268185
  19. Robert YoungPalo Alto, CA 943011992172746
  20. S.alex Young, MDMadera, CA 936371073701777
  21. Andre Yousefia, M.D.Thousand Oaks, CA 913601992735930
  22. Hartyoun Yousif, M.D.Glendale, CA 912041306066899
  23. Andy Yu, M.D.San Jose, CA 951281427136266
  24. I-Ting Yu, M.D.Sacramento, CA 958171740231679
  25. Karen Yu, MPH, REHSSan Francisco, CA 941021639593650
  26. Leisure Yu, MD, PHDLoma Linda, CA 923541811960875
  27. Vincent Yu, M.D.Torrance, CA 905051750487476
  28. Philip Yuan, M.D.Long Beach, CA 908061821077595
  29. Patricia Yun, M.D.Long Beach, CA 908071962468777
  30. Renato Yuzon, M.D.Merced, CA 953401780656512
  31. Augusto Zablan, M.D.Los Angeles, CA 900571336128925
  32. Sheldon Zablow, M.D.Poway, CA 920641568565943
  33. Edward Zabrek, M.DEl Centro, CA 922431699828939
  34. Kiran Zachariah, M.D.Richmond, CA 948011780619924
  35. Gary Zagelbaum, M.D.Los Angeles, CA 900481255586905
  36. Sarah Zahed, PTNorth Hollywood, CA 916061124348511
  37. Shila ZahirLos Angeles, CA 900251720970015
  38. David Zakarian, D.OTarzana, CA 913561801003389
  39. Mohammed Zakhireh, M.D.Palm Desert, CA 922601780806786
  40. Amal ZakyHuntington Park, CA 902551952337321
  41. Timothy Zaludek, M.D.Murrieta, CA 925621184613655
  42. Babak Zamiri, M.D.Riverside, CA 925061013991041
  43. Carlos ZamoraSan Francisco, CA 941021851818983
  44. Chelsea ZamoraSan Leandro, CA 945781619426590
  45. Barry Zamost, M.D.Long Beach, CA 908081194731216
  46. Tommy ZamotSan Francisco, CA 941031043774847
  47. Christine Zampach, D.P.T.San Francisco, CA 941431013179159
  48. Alla Zander, M.D.Laguna Hills, CA 926531609809375
  49. David Zander, M.D.San Clemente, CA 926731922023399
  50. Iraj Zandi, M.D.Fremont, CA 945381265598866

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.