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 30 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. Kevin Berger, M.D.Tarzana, CA 913561972522704
  2. Terese Bergheim, M.D.Irvine, CA 926971194146688
  3. Carl Bergstrom, MDCarmel, CA 939231407937139
  4. Samuel Berkman, MDLos Angeles, CA 900951730114752
  5. Craig Berlinberg, MDSan Jose, CA 951241447287156
  6. Arnold Berman, M.D.Union City, CA 945871346328119
  7. David Berman, M.D.Greenbrae, CA 949041548245921
  8. Mark Berman, M.D.San Francisco, CA 941141285763789
  9. Peter Berman, MDSan Francisco, CA 941031942382056
  10. Rebecca Berman, M.D.San Francisco, CA 941431770633661
  11. Ronald Berman, MDRichmond, CA 948011437234192
  12. Ronald Berman, M.D.San Pablo, CA 948061700967361
  13. Eduardo Bermudez, MDSacramento, CA 958251306924048
  14. Eleanore Bernadas, M.D.San Diego, CA 921031306137500
  15. Samuel Bernal, MD, PHDLos Angeles, CA 900951942225016
  16. Kenneth Bernard, M.D.Monterey, CA 939401477871366
  17. Ricardo Bernardino, M.D.Delano, CA 932151992806152
  18. Marinette Bernardo, MDStockton, CA 952101154426179
  19. Napoleon Bernardo, M.D.Roseville, CA 956611578820544
  20. Aviva Bernat, M.D.Los Angeles, CA 900251407836323
  21. Anthony Bernens, MDWalnut Creek, CA 945981215983440
  22. David Bernhardt, M.D.Pismo Beach, CA 934491720061013
  23. Ilan Bernstein, M.D.Los Angeles, CA 900271679882195
  24. Jack Bernstein, MDSan Mateo, CA 944011457301384
  25. Lawrence Bernstein, M.D.Santa Clarita, CA 913501104838754
  26. Leonard Bernstein, M.D.San Diego, CA 921031164596169
  27. Louis Bernstein, M.D.Redding, CA 960011780899591
  28. Michael Bernstein, M.D.Santa Barbara, CA 931101336158732
  29. Monte Bernstein, M.D.San Jose, CA 951191730262593
  30. Jasmine Berookim, M.D.Los Angeles, CA 900271982049052
  31. Peyton Berookim, M.D.Beverly Hills, CA 902111770773830
  32. Shiela Beroukhim AfrahimiLos Angeles, CA 900951386141885
  33. Diane Berriman, M.D.Loma Linda, CA 923571215029780
  34. Julia Berrospi-Chia, M.D.Loma Linda, CA 923571083722417
  35. Brenda Berry, MDFresno, CA 937201942295381
  36. Brigitte Berry, M.D.Sacramento, CA 958161477741973
  37. Lyn Berry, MDOakland, CA 946021528078193
  38. Shannon Berry, M.D.Templeton, CA 934651013909811
  39. Thomas Bersot, MDSan Francisco, CA 941101205037629
  40. Bella Berzin, MDDaly City, CA 940151487733515
  41. Marian Beshara, M.D.Highland, CA 923461982649448
  42. Youstina Mary Beshay-Taylor, DOCovina, CA 917221467154625
  43. David Besley, MDMartinez, CA 945531336227420
  44. Charizza Grace Besmanos, MDFresno, CA 937011235879800
  45. Samantha Bessega, MDSanta Barbara, CA 931101972574325
  46. Gerald Besses, MDPetaluma, CA 949521124047311
  47. Jaime Betancourt, M.D.Los Angeles, CA 900731801098884
  48. Megan BetancourtSan Francisco, CA 941431891498499
  49. Daniel BetatLoma Linda, CA 923541679000657
  50. Deborah Beutler, M.D.Pasadena, CA 911051417914375

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.