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 322 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. Arvin Tunick, M.D.Thousand Oaks, CA 913601881893329
  2. William Tuong, M.D.Beverly Hills, CA 902111679812838
  3. Wilfredo Tupas, MDSan Bernardino, CA 924041578533253
  4. Robert Turcott, MDStanford, CA 943051750581005
  5. Ahmet Turek, MDChico, CA 959731922154921
  6. Sarah Turgasen, M.D.Sacramento, CA 958201760619787
  7. Michael Turken, MDStanford, CA 943051245675552
  8. Joanna Turkiewicz, DSylmar, CA 913421396323648
  9. Liana Turkot, MDWoodland, CA 956951245259241
  10. John Turla, MDSan Diego, CA 921201669520458
  11. Barbara Turner, MDLa Canada, CA 910111245267152
  12. Elizabeth TurnerLos Angeles, CA 900951699880781
  13. Elizabeth Turner, MDDaly City, CA 940151922186543
  14. Jesse TurnerSan Francisco, CA 941431629394895
  15. Michael Turner, M.D.Eureka, CA 955011447235858
  16. Terri Turner, DOLakeport, CA 954531366522831
  17. Todd Turner, MDPasadena, CA 911051912971763
  18. Daniel Turner-Lloveras, MDTorrance, CA 905021457585697
  19. Zandra Tutt, MDRiverside, CA 925081467462143
  20. Genevieve TuvesonPalm Springs, CA 922621104320787
  21. Katarzyna Twardowska, MDAnaheim, CA 928011790881795
  22. Patrick Twomey, M.D.South San Francisco, CA 940801265639454
  23. Nicole Tyer, MDLos Angeles, CA 900481346400785
  24. Douglas Tyler, MDSanta Monica, CA 904031447357249
  25. Burgundy Tyrrel Signorini, M.D.Santa Barbara, CA 931051699177733
  26. James Tyrrell, MDSalinas, CA 939061447202528
  27. John Tysell, M.D.Richmond, CA 948051568900439
  28. Kevin Tyson, MDPasadena, CA 911071194723874
  29. Andrew Tzellas, M.DNapa, CA 945581003996042
  30. Allison Tzeng, MDSan Francisco, CA 941431205575487
  31. Robert Tzeng, MDMonterey Park, CA 917541578665014
  32. William Tzeng, MDHacienda Heights, CA 917451649809385
  33. Chibueze UbahLoma Linda, CA 923541114554029
  34. Ari UcarLos Angeles, CA 900591689203531
  35. Ijeoma Uche, M.D, PHARMDMoreno Valley, CA 925531851686638
  36. Adaeze Udezue, M.DNovato, CA 949451457412736
  37. Nikom Udomphonkul, MDGridley, CA 959481598849192
  38. Neville Udwadia, M.D.Salinas, CA 939011205910882
  39. Zubin Udwadia, MDRed Bluff, CA 960801922364967
  40. Rie Ueno, M.D.Sacramento, CA 958171356696074
  41. Ifeoma Ugochukwu, M.D.Valencia, CA 913541336524412
  42. Chioma Ugoh, M.D.Bakersfield, CA 933051659518207
  43. Chinedu Ugorji, M.D.Paramount, CA 907231932133980
  44. Michael Ugurian, M.D.Mission Hills, CA 913451518492552
  45. Godwin Ugwueze, MDCorcoran, CA 932121609990134
  46. Michael Uhrik, MDFolsom, CA 956301871671586
  47. Kenoye Uku, MDLos Angeles, CA 900341013084920
  48. Richard Ulene, M.D.Mission Viejo, CA 926921457488264
  49. Wayne Ulit, M.D.Los Angeles, CA 900571518005289
  50. Fauzia Ullah, MDSacramento, CA 958171952895658

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.