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 12 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. Rajeev Ambe, MDAnaheim, CA 928071134296072
  2. Minu Ambika Rajendran, MDRidgecrest, CA 935551457912016
  3. Virginia Ambrosini, MDPanorama City, CA 914021730256645
  4. Daniel Amde, M.D,Van Nuys, CA 914051316218456
  5. Syeda AmeenaFontana, CA 923361972998706
  6. William Amend, M.D.San Francisco, CA 941431528002557
  7. Daniel Ames, M.D.Novato, CA 949451902162456
  8. William Amess, M.D.Sacramento, CA 958171326232794
  9. Linnea Amesur, D.O.Moreno Valley, CA 925551861755415
  10. Aisha AminSunnyvale, CA 940861013440981
  11. Avni Amin, MDModesto, CA 953551801138243
  12. Hemal Amin, M.D.Rancho Cordova, CA 956701689786907
  13. Jay Amin, MDOrange, CA 928691568564193
  14. Mihir Amin, MDRoseville, CA 956611922186683
  15. Mubashara Amin, MDSan Francisco, CA 941151770163222
  16. Sameer Amin, MDDowney, CA 902401326164633
  17. Sheena Amin, MDStanford, CA 943051316697857
  18. Shefalee Amin, MDTorrance, CA 905031164724514
  19. Ali Amini, M.D.Los Angeles, CA 900151528251386
  20. Maziar Amini, MDLos Angeles, CA 900481669121596
  21. Maziyar Amini, M.D.Los Angeles, CA 900331891992525
  22. Parviz Amini, MDNorthridge, CA 913241942230495
  23. Valeh Aminian, MDSan Jose, CA 951191417035098
  24. Mark Aminzadeh, MDLos Angeles, CA 900671184070427
  25. Susan Aminzai, M.D.San Bernardino, CA 924041619471091
  26. Fariba Amiri, M.D.Greenbrae, CA 949041851340194
  27. Sohrab Amiri, M.D.Walnut Creek, CA 945951811420243
  28. Hamid Amjadi, DOSan Diego, CA 921031700861333
  29. Ali Ammar, MDLomita, CA 907171720498645
  30. Mustafa Ammar, M.D.Yuba City, CA 959911558363168
  31. Lauren Ammerman, MDStanford, CA 943051548651177
  32. Ana Amog, MDPleasanton, CA 945881083766893
  33. Sharmila Amolik, M.D.Folsom, CA 956301003971003
  34. Alexis Amonic, MDLong Beach, CA 908131427686476
  35. Ashkan Amooee, M.D.Downey, CA 902411285954149
  36. Adrian Amooie, M.D.Commerce, CA 900401811184237
  37. Maryanne Amour, MDTorrance, CA 905021487395992
  38. Afsaneh Amouzegar, MDSan Francisco, CA 941431609432038
  39. Nail Amro, M.D.Fairfield, CA 945331861413551
  40. Stanley Amundson, M.D.San Diego, CA 921021003968009
  41. Esther Amuyunzu-Ramirez, M.D.Sacramento, CA 958251518387364
  42. Hyung An, M.D.Paradise, CA 959691336108851
  43. Joseph An, MDSacramento, CA 958171649910654
  44. Samir Anabi, M.D.Pomona, CA 917671790893857
  45. Chude Anagor, MDVallejo, CA 945891336556224
  46. Nwachukwu Anakwenze, M.D.Inglewood, CA 903031255417309
  47. Kapil Anand, M.D.Walnut Creek, CA 945961912393281
  48. Rachit Anand, DOBurlingame, CA 940101457980757
  49. Rajsavi Anand, MDLos Angeles, CA 900671295358950
  50. Ananda Ananda, M.D,Oxnard, CA 930331912044181

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.