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 16 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. Paul Aronowitz, MDSacramento, CA 958171023109063
  2. Amita AroraClovis, CA 936111376159962
  3. Krishan Arora, MDSylmar, CA 913421710789235
  4. Millie AroraOrange, CA 928681003347527
  5. Rashi Arora, MDSacramento, CA 958251205848892
  6. Sameer Arora, MDWoodland Hills, CA 913671639238215
  7. Sameer Arora, M.D.Santa Clara, CA 950511366774655
  8. Sharad Arora, MDStockton, CA 952101124106026
  9. Tarandeep Arora, MDLodi, CA 952401043457005
  10. Lena Arous, M.D.Valencia, CA 913551790953560
  11. Rohini Arramreddy, MDPalo Alto, CA 943041417190059
  12. Ernest Arras, MDNapa, CA 945581174601900
  13. Felipe Arredondo, MDSacramento, CA 958161407352883
  14. Olivia Arreola-Owen, MDNorth Hills, CA 913431194003079
  15. Desiree Arretz, M.D.San Francisco, CA 941101760409197
  16. Shalynn Arrington, DOTemecula, CA 925921164009940
  17. Anthony Arroyo, MDWalnut Creek, CA 945961376621458
  18. Jaime Arroyo, M.D.San Diego, CA 921341104890987
  19. Saba Arshad, M.D.Union City, CA 945871871025957
  20. Waqaar Arshad, DORoseville, CA 956611447812540
  21. Gary Arsham, M.D.San Francisco, CA 941151487646758
  22. Maja Artandi, M.D.Stanford, CA 943051861579039
  23. Kristine Arthur, MDFountain Valley, CA 927081003010950
  24. Arsineh Artounian Savarani, DOPalmdale, CA 935511346827326
  25. Chandran Arulanandan, MDLivermore, CA 945511689752784
  26. Tanya Arvan, MDTorrance, CA 905051104827666
  27. Afshin Arya, M.D.Roseville, CA 956611548230287
  28. Arman Aryai, MDFontana, CA 923351851592737
  29. Nitu Aryal, M.D.Sacramento, CA 958161083870968
  30. Karina Arzumanova, M.DSan Francisco, CA 941151437216090
  31. Hasmik Arzumanyan, MDOakland, CA 946111033301882
  32. Abubakr Asadulla, M.D.Hayward, CA 945451881772648
  33. Mari Asakawa, MDSanta Clara, CA 950511134206071
  34. Juline Adelle AsamoahRedondo Beach, CA 902771679060495
  35. Mary Asano, M.D.Saratoga, CA 950701558604561
  36. Mark Asbill, M.D.Long Beach, CA 908061558310896
  37. Steven Asch, MD MPHLos Angeles, CA 900731487764783
  38. Bankole Asebiomo, MDPalo Alto, CA 943041841301884
  39. Danielle Asef, D.O.Long Beach, CA 908131205113313
  40. Elizabeth Asfaw, M.D.Los Angeles, CA 900951699206250
  41. Amir Asgari, M.D.Escondido, CA 920291730484981
  42. Richa Ashar, MDSanta Clara, CA 950511083280457
  43. Lisa Ashe, D.O.San Francisco, CA 941041033364708
  44. Rebecca Ashe, MDSan Carlos, CA 940701003980798
  45. Afshin Ashfaei, M.D.Redondo Beach, CA 902771598931131
  46. Sobia Ashfaq, MDTorrance, CA 905051487232153
  47. David Ashley, DO, MPH, MSSan Diego, CA 921011578251328
  48. Kristin Ashley, M.D.Auburn, CA 956031437160298
  49. Robert Ashley, MDSanta Monica, CA 904041780628487
  50. Nagasamudra Ashok, M.D.San Jacinto, CA 925831821036229

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.