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 29 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. John Bell, M.D.Hayward, CA 945451720282932
  2. Kristin Bell, M.D.Vista, CA 920831154335891
  3. Matthew Bell, MDSan Francisco, CA 941091295316263
  4. Maurice Bell, MDLong Beach, CA 908071003838020
  5. Archie Bella, M.D.National City, CA 919501487098497
  6. Natalie Bello, M.D.West Hollywood, CA 900481609068972
  7. James Belogorsky, MDStockton, CA 952091336104207
  8. Manuel BeltranOxnard, CA 930361538705462
  9. Emmanuel Beltran Gutierrez, MDEl Centro, CA 922431467038935
  10. Brittaney Belyeu, M.D.San Francisco, CA 941021215279724
  11. Ron Ben-Ari, M.D.Los Angeles, CA 900331275562431
  12. Devorah Ben-Zeev, M.D.Walnut Creek, CA 945971033160692
  13. Leigh Ben-ZvyOakland, CA 946021396308524
  14. Ron Benbassat, MDBeverly Hills, CA 902101538269097
  15. Marilyn Benck, MDFriant, CA 936261134297641
  16. Susan Benedick, MDStanford, CA 943051861606253
  17. Hugh Benedict, MDOakland, CA 946111821149667
  18. Peter Benedith, MDSf, CA 941041720253719
  19. Michael Benefiel, M.D.Fountain Valley, CA 927081861855827
  20. Alan Beneze, MDLa Jolla, CA 920371700146081
  21. Daniel Benhuri, MDBeverly Hills, CA 902101003304189
  22. Martha Benitez, DOSan Diego, CA 921041124521901
  23. Alicia Benjamin, M.D.San Diego, CA 921011790793040
  24. Rudo Benjamin, MDTorrance, CA 905031295736676
  25. Mansour Benlevy, MDLos Angeles, CA 900291669516159
  26. Chelsea Benmessaoud, MDLos Angeles, CA 900241700462140
  27. Eric Benner, M.D.Mission Viejo, CA 926911063648343
  28. Bernard Bennett, MDTustin, CA 927801871568899
  29. Eliza Bennitt, MDMenlo Park, CA 940251043315740
  30. Neal Benowitz, MDSan Francisco, CA 941101538103411
  31. Soheila Benrazavi, MDSanta Rosa, CA 954051003339722
  32. Jimi Benson, M.D.El Cajon, CA 920211477751667
  33. Katherine Benson, MDSan Diego, CA 921031669174652
  34. Kim Benson, M.D.Dublin, CA 945681801948633
  35. Stephen Bent, MDSan Francisco, CA 941211104841832
  36. Sarah Bentil-Owusu, MDWest Hollywood, CA 900691215498050
  37. Lisa Benya, D.O.Malibu, CA 902651972515781
  38. Hani Benyamin-AjaipiCypress, CA 906301770783896
  39. Lurit BepoSan Francisco, CA 941431336672559
  40. Janine Bera, MDSacramento, CA 958171649358383
  41. Kevin Bera, MDLoma Linda, CA 923541174103501
  42. Christopher Berberian, M.D.Panorama City, CA 914021992066955
  43. Vahid Berdjis, MDBakersfield, CA 933121245443175
  44. Alexander Berdy, MDAnaheim, CA 928071336216340
  45. Olga BeregovskayaCorcoran, CA 932121548469117
  46. Jeffrey Berenson, MDMendocino, CA 954601902828619
  47. Yehuda Berenson, MDArcadia, CA 910061366402711
  48. Diamond Berg, MDSan Diego, CA 921031699477216
  49. Karrie Berg, D.O.Sacramento, CA 956611730343914
  50. Benjamin BergerPalo Alto, CA 943041386223865

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.