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 138 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. Jee Hoon Jang, MDSimi Valley, CA 930651639691579
  2. Susie Jang, MDMountain View, CA 940411871554022
  3. Gerald Jankowski, M.D.Roseville, CA 956611538248117
  4. Sajad Janmohamed, MDSacramento, CA 958251699853382
  5. Michael Janoff, MDAnaheim, CA 928071144391053
  6. Mark Janowski, M.D.San Diego, CA 921081689878969
  7. Bhavesh Jansari, M.D.Placentia, CA 928701245256064
  8. Matti Jansen, M.D.Santa Barbara, CA 931011821227174
  9. Julia JanssenSan Francisco, CA 941031871026773
  10. Ravi Janumpally, M.D.Lancaster, CA 935341952796542
  11. Mark Jaradeh, MDStanford, CA 943051851087647
  12. Michael Jarahzadeh, MD.Mission Hills, CA 913451275551822
  13. Mario Jaramillo, MDLos Angeles, CA 900241427679406
  14. Mary Jaramillo, M.D.San Diego, CA 921031255361895
  15. Shahriar Jarchi, M.D.Los Angeles, CA 900351417008772
  16. Michael Jardula, MDPalm Springs, CA 922621346222510
  17. Neil JariwallaOrange, CA 928681649807686
  18. Valerie Jaroenpuntaruk, MDSacramento, CA 958251033774104
  19. Diego Jarrin, M.D.San Diego, CA 921081003926833
  20. Irina Jasper, MDPasadena, CA 911061356421903
  21. Aastha Jasrotia, MDLos Angeles, CA 900251871946475
  22. Simerjot Jassal, MDSan Diego, CA 921611689698052
  23. Hymavathy Jasti, MDStockton, CA 952101871665521
  24. Sreehari Javagal, MDSacramento, CA 958161609979483
  25. Hooshang Javaheri, MDAnaheim, CA 928011063419448
  26. Peter Javaheri, MDRoseville, CA 956611023196789
  27. Afshin Javaherian, MDPanorama City, CA 914021689726044
  28. Jasmin Javaherian, D.OEncino, CA 914361447294715
  29. Vahid Javaherian, DOCovina, CA 917231609836972
  30. Naila JavaidVentura, CA 930031881258903
  31. Fred Javdan, M.D.Glendale, CA 912031669575106
  32. Joseph Javdan, DOLos Angeles, CA 900231063667764
  33. Munir Javed, M.D.Mountain View, CA 940401568543130
  34. Nashra Javed, MDLos Angeles, CA 900951255970372
  35. Rowena Javier, MDBellflower, CA 907061366513285
  36. David Javitz, MDSan Luis Obispo, CA 934011235291881
  37. Jennifer Javors, MDSan Diego, CA 921611841370863
  38. W. Curtis Javorski, MDPleasanton, CA 945881598839896
  39. Shaheen Jawahar, MDTracy, CA 953771982931598
  40. Allen Jay, M.DLaguna Hills, CA 926561255609780
  41. Kavitha Jayachandran, MDSan Francisco, CA 941151265510887
  42. Saranya Jayakar, MDFremont, CA 945381669713624
  43. Letha Jayakrishnan, MDAntioch, CA 945311871671941
  44. Jacqueline Jayan, M.D.Danville, CA 945261780001792
  45. Mahnoush Jazzabi, M.D.Los Angeles, CA 900321376781401
  46. Joseph Jebain, MDSan Diego, CA 921031144783838
  47. Sangho Jee, MDSan Francisco, CA 941431932890282
  48. Praveena Jeereddi, MDPomona, CA 917671346218740
  49. Sara Jeevanjee, M.D.San Francisco, CA 941151831426691
  50. Lauren Jefferis, MDSan Marcos, CA 920691346354776

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.