NPPES file of Aug 9, 2026

Internal Medicine Physician in California

17,696 NPPES records list internal medicine physician with a practice address in California, 45 per 100,000 residents, the 17th 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 306 of 354.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 1,423

  1. Los Angeles1,423
  2. San Francisco1,318
  3. San Diego961
  4. Sacramento601
  5. Oakland432

Internal Medicine Physician records in California

  1. Michael Swiernik, MDLos Angeles, CA 900951821018920
  2. Upasna Swift, MDOakland, CA 946021639205172
  3. Robert SwinneyLos Angeles, CA 900331386799971
  4. Asaad Swissa, MDPanorama City, CA 914021831260744
  5. Nikki Switzer, MDSan Diego, CA 921031851468367
  6. Jessica Sworzyn, MDBeverly Hills, CA 902111205416070
  7. Jan SySouth San Francisco, CA 940801861068231
  8. Ramon Sy, MDSan Ysidro, CA 921731982617403
  9. Paul Sychangco, M.D,Fountain Valley, CA 927081053569483
  10. Azra Syed, MDFontana, CA 923351235310780
  11. Fatima Syed, M.D.Antioch, CA 945311487810883
  12. Hamid Syed, M.D.Fremont, CA 945381811206477
  13. Ishaque Syed, M.D.Los Angeles, CA 900331003255498
  14. Sameena Syed, DONewport Beach, CA 926601538659677
  15. Wahid Syed, MDRoseville, CA 956611902162225
  16. Humera Syeda, MDWest Hollywood, CA 900481932669215
  17. Alexandra Sykes, MDSan Diego, CA 921031023578903
  18. Ilona Sylvester, M.D.Ventura, CA 930041215959291
  19. Diana Sylvestre, M.D.Oakland, CA 946121487668422
  20. Nastassia Sylvestre, MDSanta Barbara, CA 931051649658659
  21. Eugene Edward Symaco, M.D.Covina, CA 917221578097549
  22. Milliardaire Syverain, M.D.San Jose, CA 951221801859194
  23. Victoria Szatalowicz, M.D.Inglewood, CA 903011164464780
  24. Jesse Szatkowski, MDTorrance, CA 905091720462013
  25. Yaga Szlachcic, M.D.Downey, CA 902421942382627
  26. Kathryn Szymanski, M.D.San Francisco, CA 941091366238537
  27. Phuong Ta, M.D.Aliso Viejo, CA 926561316001373
  28. Sony Ta, MDLos Angeles, CA 900031740200914
  29. Vinhfield Ta, M.D.Sylmar, CA 913421386934438
  30. Jeffrey Tabas, MDSan Francisco, CA 941101174567051
  31. Sajeeda TabassumLos Angeles, CA 900071417055823
  32. Hanieh Sadat Tabatabaei YeganehFontana, CA 923351356044754
  33. Thomas Taber, DO MPHRedwood City, CA 940631376990655
  34. Parnian Tabesh, MDRoseville, CA 956611225559446
  35. Anthony Tabet, D.O.Santa Monica, CA 904041174055388
  36. Raymond Tabibiazar, M.D.San Jose, CA 951281447423587
  37. Roy Eugene Tabigo On, M.D.Los Banos, CA 936351689944639
  38. Maria Tabilon, MDNapa, CA 945581558449389
  39. Celso Taborga, M.D.Walnut Creek, CA 945961114959509
  40. Pelma Tabrizi, M.D.Santa Ana, CA 927071568497998
  41. Mikio Tachibana, MDFountain Valley, CA 927081598721227
  42. Ashkan TadayoniTorrance, CA 905021194388207
  43. Drew Tadiarca, M.D.Loma Linda, CA 923541275893810
  44. Nadia Tadros, M.D.Brea, CA 928211548467210
  45. Christina Tadrous, M.D.Los Angeles, CA 900331780922468
  46. Veeravat Taecharvongphairoj, M.D.Hemet, CA 925441508065145
  47. Charles Taft, M.D.Temecula, CA 925901366409617
  48. Tomoko Tagawa, M.D.Duarte, CA 910101285825414
  49. Keven Tagdiri, M.D.Encinitas, CA 920241922000694
  50. Sahar Taghvaei, DOStanford, CA 943051881072015

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. New Jersey50
  2. New Hampshire48
  3. Minnesota46
  4. California45
  5. Florida45
  6. Ohio45
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.5% of these records appear in a Medicare file, against 78.7% 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. California79.5%
  2. United States78.7%

Internal Medicine Physician records in California, measured

  • In a Medicare file14,068 of 17,696 · 79.5% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file11,077 · 62.6% here, 61.4% nationally
  • Not updated in five years or more10,832 · 61.2% here, 55.4% nationally
  • Median graduation year2004 · the 11,065 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

17,696 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in California: 45 per 100,000 residents against 44 nationally (50 states and D.C.). Los Angeles has 1,423 of them (8%).

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 York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300

States with a similar rate per 100,000

  1. Minnesota45.9
  2. Ohio44.8
  3. New Hampshire48.0
  4. Maine42.8

The largest states

  1. New York12,067
  2. Florida10,151
  3. Texas9,175
  4. Pennsylvania7,300
  5. Illinois7,238

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.