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 11 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. Hassan Alsabbak, M.D.Poway, CA 920641851705396
  2. Sadick Alsadir, MDMenlo Park, CA 940251861563017
  3. Hedeal Alsalihi, M.D.Visalia, CA 932771326089053
  4. Yusur Alsalihi, DOMoreno Valley, CA 925551316782634
  5. Burak Alsan, MDStanford, CA 943051669508073
  6. Sara AlsarrayTemecula, CA 925921104403906
  7. Sinan Alshahwany, M.D.Brentwood, CA 945131801997440
  8. Mohammed Alshammary, MDEl Cajon, CA 920201194217539
  9. Mustafa Alsharafi, MDPorterville, CA 932571437844693
  10. Sami Alskaf, MDPanorama City, CA 914021275681116
  11. Alexander Alsoufiev, M.D.Anaheim, CA 928011548354285
  12. Tabark Altai, MDFresno, CA 937011699415356
  13. Jaime Altamirano, M.D.Mission Hills, CA 913451689680092
  14. Valerie Altavas, M.D.National City, CA 919501245231174
  15. Mark Altchek, M.D.Merced, CA 953401154503670
  16. Russell Alterman, D.O.Newport Beach, CA 926601487609939
  17. Lisa Altman, M.D.Los Angeles, CA 900731326145095
  18. Russ Altman, M.D.Stanford, CA 943051497813810
  19. Stefanie Altmann, DOWalnut Creek, CA 945961912494188
  20. Victoria Altree, M.D.Glendale, CA 912081609146828
  21. Eden AltwiesLos Angeles, CA 900951639831332
  22. Joseph Alukal, M.D.Riverside, CA 925011801270699
  23. Mahlet Alula, M.D.San Diego, CA 921081700985629
  24. Padma Aluru, MDPetaluma, CA 949541992325526
  25. Vijay AluruOakland, CA 946091588026488
  26. Claudia Alvarado, M.D.Bakersfield, CA 933051083859045
  27. Elisa Alvarado, M.D.San Marino, CA 911081891979746
  28. Enma Alvarado, MDSan Diego, CA 921031942563762
  29. Rudolph Alvarado, M.D.Fresno, CA 937101750353314
  30. Osman Alvarado Portillo, MDCarson, CA 907451881379899
  31. Maria Alvarado-GarciaSacramento, CA 958171518388339
  32. Carlos Alvarez, MDBakersfield, CA 933091891805610
  33. Fernando Alvarez, M.D.Redding, CA 960011801804901
  34. Luz Alvarez, MDSan Diego, CA 921201144345653
  35. Ruben Alvarez, MDLos Angeles, CA 900271598832511
  36. Arturo Alvarez Antezana, MDSonora, CA 953701457847154
  37. Johnny Alvarez De La Cruz, MDSacramento, CA 958171285383844
  38. Sarah Alvord, M.D.Ukiah, CA 954821831402619
  39. Omar AlyLos Angeles, CA 900451265724389
  40. Teri Alyami, MDOakland, CA 946111326126194
  41. Nathan AlyeshTarzana, CA 913561417362856
  42. Gustavo Alza, MDLos Angeles, CA 900421942498464
  43. Maria Amado, M.D.Woodland Hills, CA 913641073606208
  44. Arthur Kevin Amador, DORiverside, CA 925051851850978
  45. Tedros Amanios, MDWoodland Hills, CA 913671528127107
  46. Sashibindu Amara, MDBurlingame, CA 940101194832493
  47. Rafael AmaroHarbor City, CA 907101750475661
  48. Subha Amatya, M.D.Huntington Beach, CA 926461861837221
  49. Chetan Ambastha, MDStanford, CA 943051275279648
  50. Megha AmbatiWalnut Creek, CA 945951083849111

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.