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 238 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. Angela Park, DOSan Diego, CA 921231730582321
  2. Annie Park, M.DLoma Linda, CA 923541912384025
  3. Boyle Park, MDSan Diego, CA 919411255302956
  4. Claire Park, MDTorrance, CA 905091649405895
  5. Daniel ParkFresno, CA 937011427635432
  6. Daniel Park, M.D.Oakland, CA 946071073691838
  7. Denise Park, MDCerritos, CA 907031518015338
  8. Edward Park, DOSan Diego, CA 921341285255570
  9. Eileen Park, MDLos Angeles, CA 900271164719399
  10. Elisa ParkMontebello, CA 906401477931186
  11. Emily Park, MDOakland, CA 946091730949025
  12. Eun-Jung Park, MDMonterey, CA 939401598866162
  13. Grace Park, M.D.Santa Barbara, CA 931051629268750
  14. Jae Park, MDSouth San Francisco, CA 940801477631075
  15. Jae Man Park, M.D.Garden Grove, CA 928441669628228
  16. Jane Park, M.D.San Francisco, CA 941091134461411
  17. Jaryn Park, M.D.Antioch, CA 945091639458540
  18. Jay Park, MDLong Beach, CA 908221942315650
  19. Jee-Hyon Park, M.D.Wildomar, CA 925951306006192
  20. Jennifer Park, D.O.San Diego, CA 921301770875965
  21. Jeong Soo Park, MDSanta Clara, CA 950511356970701
  22. Ji Yeon Park, DOColton, CA 923241295189850
  23. John Park, MDLos Angeles, CA 900271851823504
  24. Jong Park, M.D.Santa Clara, CA 950511801826904
  25. Joon Park, M.D.Los Angeles, CA 900271982022737
  26. Kyeong Park, M.D.Modesto, CA 953551437170826
  27. Lydia ParkSan Diego, CA 921111235620287
  28. Margaret Park, MDLos Angeles, CA 900951427344951
  29. Michael Park, MDWalnut Creek, CA 945961598843690
  30. Michelle Park, MDPanorama City, CA 914021922156959
  31. Moses Park, M.D.Redlands, CA 923731528079639
  32. Nathan Park, MDOrange, CA 928681982165247
  33. Nikki Park, M.D.Downey, CA 902421659633931
  34. Nina Park, MDSylmar, CA 913421205903614
  35. Richard Park, M.D.Granada Hills, CA 913441174718134
  36. Ronald Park, MDMilpitas, CA 950351437236361
  37. Sean Park, MDYreka, CA 960971316031883
  38. Shirley Park, MDStanford, CA 943051457376980
  39. Solomon Park, MD MPHPleasanton, CA 945881770005357
  40. Stephen Park, MDGarden Grove, CA 928401952359002
  41. Steve Park, MDPanorama City, CA 914021073661989
  42. Steven Park, M.D.Baldwin Park, CA 917061104897495
  43. Sue Park, MDLos Angeles, CA 900271508925199
  44. Taikeun Park, MDChula Vista, CA 919101831175918
  45. Vernon Park, M.D.Turlock, CA 953821396841961
  46. Wilson Park, MDLos Angeles, CA 900201194855627
  47. Christopher Parker, M.D.Encinitas, CA 920241437322070
  48. Elaine Parker, M.D.Santa Monica, CA 904041093902454
  49. Graham ParkerLos Angeles, CA 900891770232639
  50. Jeffrey Parker, M.D.Eureka, CA 955031689650889

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.