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 65 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. Charleston Cone, MDPleasant Hill, CA 945231689874000
  2. Mercedes Conklin, MDSan Jose, CA 951191619056744
  3. Maria Conley, MDFairfield, CA 945351093838872
  4. Regina Connell, M.D.San Diego, CA 921151639380249
  5. Julius Conner, M.D.San Diego, CA 921271902919871
  6. Sylvia Connolly, MDWalnut Creek, CA 945961578641668
  7. Thomas Connolly, MDWalnut Creek, CA 945981750469821
  8. Denise Connor, MDSan Francisco, CA 941431326274549
  9. Matthew Conolly, MDLos Angeles, CA 900951003841800
  10. Patricia Conolly, MDOakland, CA 946121821177965
  11. Kenneth Michael Conroy, MDRoseville, CA 956611134108285
  12. Robert Cons, MDHuntington Park, CA 902551346306958
  13. David Constable, M.D.Glendale, CA 912061710308432
  14. Carl Constantine, M.D.Santa Paula, CA 930601669586293
  15. Martin Consunji, MDSan Ysidro, CA 921731033746029
  16. Nico ContiSanta Monica, CA 904041538690870
  17. Anisha Contractor, DOLos Angeles, CA 900951538658430
  18. Heena Contractor, M.D.Los Alamitos, CA 907201518954973
  19. Roberto Contreras, M.D.San Bernardino, CA 924081316173404
  20. Shilrey Contreras, M.D.Irvine, CA 926971366599532
  21. William Contreras, M.D.Chula Vista, CA 919131780694273
  22. William Convalecer, M.D.Glendale, CA 912061699794594
  23. Alexander Conway, MDStanford, CA 943051679275804
  24. Erin Cook, M.D.Los Angeles, CA 900951558504381
  25. Ryan CookTravis Afb, CA 945351386391944
  26. Ben Cooke, MDAtascadero, CA 934221528512803
  27. Laura Cooke, MD, MPHSan Diego, CA 921271477560506
  28. Mary Cooke, MDSan Francisco, CA 941431821053620
  29. Sherilynn Cooke, MDGrass Valley, CA 959451427136506
  30. C Cooney, M.D.San Francisco, CA 941151255332094
  31. Earl Cooper, M.D.Los Angeles, CA 900181780906404
  32. Gary Cooper, MDSouth Lake Tahoe, CA 961501487653663
  33. John Cooper, MDGlendale, CA 912061275597163
  34. Lawrence Cooper, M.D.Santa Rosa, CA 954031801895602
  35. Rachel Cooper, MDLos Angeles, CA 900151851820419
  36. Andrea Cooperman, MDSylmar, CA 913421326134560
  37. Peter Coopersmith, MDSan Francisco, CA 941151427157163
  38. Marshall Cooperson, DONapa, CA 945581194743195
  39. William CopeLos Angeles, CA 900951194188185
  40. Ardeth Copeland, MDVista, CA 920841699704338
  41. Dane Copeland, M.D.Santa Fe Springs, CA 906701356409726
  42. Lee Copeland, M.D.Clovis, CA 936121619958501
  43. Stephen Copen, M.D.Los Angeles, CA 900481447264981
  44. Julie Copon, D.O.Huntington Beach, CA 926471578568564
  45. Katya Corado, M.D.Long Beach, CA 908131013109461
  46. John Michael Vincent Coralde, MDTemecula, CA 925921447837794
  47. Roxana Coras, MD PHDWest Hollywood, CA 900481184365082
  48. Laurence Corash, M.D.San Francisco, CA 941431598702060
  49. Daniel CorballySan Diego, CA 921031902303423
  50. David Corbin, MDSantee, CA 920711275627200

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.