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 23 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. Iqbal Bal, M.D.Porterville, CA 932571326272071
  2. Jagdeep Bal, M.D.Roseville, CA 956611548252703
  3. Jasdeep Bal, M.DEl Dorado Hills, CA 957621720025802
  4. Martha Balabegians, M.D.San Francisco, CA 941091255479432
  5. Saraswathy Balasingam, M.D.Rancho Cordova, CA 956701083687743
  6. Maheswari Balasubramanian, MDSacramento, CA 958161235217357
  7. Raj Balasundaram, M.D.Downey, CA 902411083840367
  8. Antonio Balatbat, M. D.Sacramento, CA 958161598798639
  9. Gladys Balderama, M.D.Fremont, CA 945381831415280
  10. Rodolfo BalderasChula Vista, CA 919101649808460
  11. Erick Balderrama, M.D.Van Nuys, CA 914011710038252
  12. Frank Balderrama, M.D.Van Nuys, CA 914011942351499
  13. Erin Baldwin, MDCamarillo, CA 930121770786881
  14. Marie Balfour, MDOrange, CA 928681861197626
  15. Mihaela Balica, MDPacific Palisades, CA 902721609935287
  16. Manuel Balikian, MDClovis, CA 936121043374465
  17. Yasemin Balin, MDLos Alamitos, CA 907201972126696
  18. Peter Balingit, MDSylmar, CA 913421114952264
  19. Jaymie BaliwagLos Angeles, CA 900271396204384
  20. Bilegsaikhan BalkhaaMountain View, CA 940401982098885
  21. Amy Ball, M.D.Los Gatos, CA 950301265706865
  22. Sharon Ball, M.D.Sacramento, CA 958161326296112
  23. Sheldon Ball, MDMather, CA 956551689646275
  24. Amal Ballat, MDFontana, CA 923351063560951
  25. Manuel Ballesca, MDNapa, CA 945581639257538
  26. Darryl Ballin, M.D.,INCTarzana, CA 913561922174192
  27. John Balmes, MDSan Francisco, CA 941101851478374
  28. Galina Balon, MDMountain View, CA 940401114932571
  29. Francis Baltasar, M.D.Sacramento, CA 958251457588253
  30. Tony BaltazarLos Angeles, CA 900271558700864
  31. Arthi BaluSan Diego, CA 921031851738108
  32. Maragadham Balu, M.D.San Jose, CA 951251922034339
  33. Vidyamohan BaluSan Jacinto, CA 925831265815880
  34. Christian Balzer, M.D.Walnut Creek, CA 945951518104892
  35. Mark Bamberger, M.D.Beverly Hills, CA 902111346274834
  36. Ramesh Bambhania, M.D.Apple Valley, CA 923071093729436
  37. Laura Bamford, MDSan Diego, CA 921031750435996
  38. Adi Bamnolker, DOOakland, CA 946111811550353
  39. Susan Ban, M.D.Tustin, CA 927801053324970
  40. Monica Banchero-Hasson, M.D.Yountville, CA 945991649244534
  41. Jeremy Bancroft Brown, MD, PHDSan Francisco, CA 941431659957405
  42. Parvathi Banda, MDPleasanton, CA 945881932247939
  43. Bahman Bandari, MDTorrance, CA 905031083615298
  44. Abhijan Banerjee, M.D.San Leandro, CA 945771548292113
  45. Josh Banerjee, M.D., M.P.H.Los Angeles, CA 900331124268842
  46. Shoujit BanerjeeOrange, CA 928681740939313
  47. Somalee Banerjee, MDSan Francisco, CA 941431609119486
  48. Sraboni Banerjee, MDMilpitas, CA 950351033255633
  49. David Bangsberg, MDSan Francisco, CA 941101184707168
  50. Jenny Banh, MDLos Angeles, CA 900271083984827

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.