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 8 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. Thomas Alan, M.D.Davis, CA 956161235115635
  2. Diana Christine Alano, M.D.Arcadia, CA 910061760654719
  3. Olga Alarid, M.D.Montebello, CA 906401427077411
  4. Basheer AlasBaldwin Park, CA 917061841949799
  5. Ronnie Alas, M.D.Santa Ana, CA 927041306267026
  6. Noor Alasady, DOSouth Gate, CA 902801871832253
  7. Sally Alassil, MDSan Diego, CA 921151982044483
  8. Faramarz Alav, M.D.Fontana, CA 923361508825027
  9. Allen Alaverdian, MDBellflower, CA 907061730248394
  10. Artur Alaverdyan, M.D.Mission Hills, CA 913451982135208
  11. Diana AlaviThousand Oaks, CA 913611700276680
  12. Alia Alaweneh, D.O.Glendale, CA 912031720456247
  13. Jacqueline Alba-Nguyen, MD, MPHSan Jose, CA 951161144545302
  14. Sarah Alba-Nguyen, M.D.San Francisco, CA 941431972893188
  15. Mohammad Albaba, MDOakland, CA 946091861589962
  16. Abdel Hafez Albakri, MDLong Beach, CA 908061952920183
  17. Dina Albaree, DOPanorama City, CA 914021851895288
  18. Zaida AlbarracinSacramento, CA 958161467879304
  19. Asseel Albayati, MDFresno, CA 937211295296333
  20. Oksana Albayati, DOFresno, CA 937211730765389
  21. Jonathan Albeg, MDHealdsburg, CA 954481770677957
  22. Harry Albers, M.D.La Jolla, CA 920371174564629
  23. Unna Albers, M.D.San Diego, CA 921031568495182
  24. Michael AlbertWest Hollywood, CA 900481902253362
  25. Jessitasinghna Albert Messiah Dhas, MDCarmel, CA 939231508392911
  26. Merle Albin, MDSan Diego, CA 921201366590150
  27. Martin Albion, MDSan Francisco, CA 941161548397896
  28. Mohamad Albouidani, MDOrange, CA 928681770670713
  29. Sherry Albrink, M.D.Brentwood, CA 945131417224197
  30. Mustafa Albustani, MDBurbank, CA 915051750624920
  31. Daniel Alcala, MDPalo Cedro, CA 960731780780718
  32. Allison Alcalay, M.D.Davis, CA 956161457334716
  33. Alfredo Alcausin, MDSan Diego, CA 921101326546680
  34. Ruba Alchaikh HassanCathedral City, CA 922341952046450
  35. Ramiz AlchiColton, CA 923241841678448
  36. Victor Alcocer, M.D.Oxnard, CA 930361023171162
  37. Katherine Alconcel, D.O.Apple Valley, CA 923071376864215
  38. Abdul Khaliq AlcozieFresno, CA 937211306406277
  39. Saad Aldaoud, MDHighland, CA 923461992297717
  40. Douglas Alder, MDSacramento, CA 958251205914926
  41. Jeannette Aldous, MDEncinitas, CA 920241073650339
  42. Sean Aldridge, M.D.Sherman Oaks, CA 914031891177481
  43. Muhammad Aleem, M.D.Union City, CA 945871952480006
  44. Pinky Alegarbes, M.D.Fresno, CA 937211588706584
  45. Farrokh Alemzadeh, MDIrvine, CA 926041528094828
  46. Alexey Aleshin, M.D.Stanford, CA 943051992061105
  47. Karan AlettySan Jose, CA 951281477116077
  48. Ashley Alexander, D.O.Fontana, CA 923351568882298
  49. Athena Alexander, M.D.Santa Ana, CA 927011225417322
  50. Edward Alexander, M.D.Culver City, CA 902301558578005

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.