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 25 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. Talal Barlas, MDBakersfield, CA 933011679195143
  2. Ali-Reza Barmaki, M.D.Walnut Creek, CA 945951003921461
  3. Linda Barman, MDStanford, CA 943051649224866
  4. Naman BarmanStanford, CA 943051215431168
  5. Brian Barmettler, M.D.San Diego, CA 921281801822507
  6. Rand Barnard, MDSan Jose, CA 950461790866838
  7. Charles Barnes, M.D.El Cerrito, CA 945301871641001
  8. Kenneth Barnes, M.D.San Francisco, CA 941101831271857
  9. Meredith Barnes, M.D.San Diego, CA 921611174848469
  10. Nana Barnes, MDRohnert Park, CA 949281063900520
  11. Farrell Barnett, M.D.Oakland, CA 946051639391170
  12. David Barold, M.D.San Diego, CA 921101497929996
  13. Jody Baron, M.D.San Francisco, CA 941431245340504
  14. Norman Baron, M.D.Oroville, CA 959661447378682
  15. Robert Baron, MD, MSSan Francisco, CA 941431558326603
  16. Arpa Baroni, D.O.Los Angeles, CA 900271548520737
  17. Erin Baroni, MDSacramento, CA 958161104355643
  18. Sangeeta Baronia, MDWalnut Creek, CA 945961073691176
  19. Sam Baroudi, MDVista, CA 920811316936933
  20. Charles Barr, M.D.South San Francisco, CA 940801861627531
  21. Irwin Barr, MDFairfield, CA 945331659450799
  22. Philip Barr, M.D.Newbury Park, CA 913201477522746
  23. Steven Barr, M.D.Ventura, CA 930031972666980
  24. Javier Barranco-Trabi, MDRiverside, CA 925211154959013
  25. Tatiana Barrera, MDLong Beach, CA 908221174382345
  26. Joi Barrett, M.D.Sacramento, CA 958161801807540
  27. Kelly Barrett, M.DYreka, CA 960971578201505
  28. Peter Barrett, M.D.Torrance, CA 905021568441954
  29. Virginia Barrett, M.D.Glendora, CA 917401750474557
  30. Domingo Barrientos, M.D.Downey, CA 902411184685281
  31. Juan Barrio, M.D.Los Angeles, CA 900331467475608
  32. Randolph Barrows, MD, MSSan Diego, CA 921611427049204
  33. Brian Barrozo, MDSan Diego, CA 921201114066800
  34. Michele Barry, MDStanford, CA 943051407839632
  35. Arsine Barsegyan, M.D.Glendale, CA 912041548211899
  36. Noha Barsoum, M.D.North Hollywood, CA 916071053391185
  37. Linda Bartell, MDFresno, CA 937201568458966
  38. Noah Bartfeld, MDLos Angeles, CA 900341437343670
  39. Robert Barthel, M.D.La Jolla, CA 920371386605087
  40. Jonathan BartheletSanta Monica, CA 904031811428550
  41. Joel Bartlett, MDFountain Valley, CA 927081073518791
  42. Brittany Bartolome, M.D.Sacramento, CA 958171154852242
  43. Bruce Barton, MDSan Diego, CA 921011932403540
  44. Cornelia Barton, MDLong Beach, CA 908151205999265
  45. Keith Barton, M.D.Oakland, CA 946091851432371
  46. Gabriella Bartos, M.D.San Francisco, CA 941101881026672
  47. Antara Barua, M.D.San Jose, CA 951281841686334
  48. Upama BaruaPleasanton, CA 945881952613036
  49. Alta Grace Baruiz, M.D.Bakersfield, CA 933011740375054
  50. Pranav Barve, M.D.Wildomar, CA 925951972899839

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.