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 340 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. Candy Wong, MDFremont, CA 945381285808907
  2. Christopher Wong, MDRosemead, CA 917701124020623
  3. Christopher Wong, M.D.San Francisco, CA 941151457529174
  4. Clifford Wong, M.D.San Francisco, CA 941081871512301
  5. Constance Wong, MDDaly City, CA 940151730356882
  6. David Wong, MDPanorama City, CA 914021669549549
  7. David Wong, M.D.Palm Springs, CA 922621962516245
  8. David Wong, MDRiverside, CA 925051659448850
  9. David Wong, M.D.San Jose, CA 951261255435483
  10. Dennis WongDowney, CA 902421457455834
  11. Dennis Wong, MDSan Francisco, CA 941431467408526
  12. Dustin Wong, DOHesperia, CA 923451255587549
  13. Edward Wong, MDLos Gatos, CA 950321093702151
  14. Edwin Wong, M.D.Rocklin, CA 957651679690069
  15. Frances Wong, M.D.San Francisco, CA 941181740378744
  16. Gary Wong, MDFontana, CA 923351255424297
  17. Grace Wong, M.D.Burbank, CA 915051053504902
  18. Hon Lim Wong, D.OArcadia, CA 910071619269925
  19. Jacqueline Wong, M.D.Alhambra, CA 918031114968393
  20. Jair Wong, MDWest Covina, CA 917901972541266
  21. James Wong, M.D.Mission Hills, CA 913451972987840
  22. Jason Wong, MDMonterey Park, CA 917541326607813
  23. Jason Wong, MDSanta Clara, CA 950511336305382
  24. Jean Wong, MDMountain View, CA 940401184730301
  25. Jessica WongLos Angeles, CA 900421528051364
  26. Jessica Wong, MDSan Francisco, CA 941221932336815
  27. Joe Wong, MDLaguna Beach, CA 926511063442879
  28. Joe Wong, MDDaly City, CA 940151902985641
  29. John Wong, MDTorrance, CA 905031659336402
  30. Johnson Wong, DOSan Francisco, CA 941151780147389
  31. Johnson Wong, M.D.Sonora, CA 953701184875759
  32. Joseph Wong, MDStockton, CA 952101285713974
  33. Justin Wong, MDStanford, CA 943051740869387
  34. Kathleen Wong, M.D.San Diego, CA 921231831200278
  35. Kelly Wong, MD.,Oakland, CA 946091205174505
  36. Kevin Wong, M.D.Daly City, CA 940151477523991
  37. Kin Wong, MDLos Angeles, CA 900121962436428
  38. Kristin Wong, M.D.San Francisco, CA 941161972946135
  39. Kuan Pok Wong, MDBellflower, CA 907061700979846
  40. Leland Wong, DOSunnyvale, CA 940861770165573
  41. Lisa Wong, MDElk Grove, CA 957581194803841
  42. Marilyn Wong, MDSan Jose, CA 951481447458138
  43. May Wong, MDBellflower, CA 907061235287202
  44. Melinda WongSan Diego, CA 921031386418028
  45. Melissa Wong, M.D.San Diego, CA 921031952746372
  46. Mitchell Wong, MDLos Angeles, CA 900951457371585
  47. Mitchell Wong, MDRedwood City, CA 940631508945254
  48. Monica Wong, M.D.Pomona, CA 917661023190733
  49. Nga Wong, M.D.Huntington Beach, CA 926471912935347
  50. Paul Wong, MDPanorama City, CA 914021861551467

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.