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 124 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. Nilesh Hingarh, M.D.Lancaster, CA 935341265590525
  2. Alejandro Hinojosa-Valencia, MDChula Vista, CA 919101083701411
  3. Trevor Hinshaw, MDSan Francisco, CA 941151154896553
  4. Melanie Hinson, MDHarbor City, CA 907101306905914
  5. Lance Hirano, MDLong Beach, CA 908151386751576
  6. Mamatha Hiregoudar, M.D.Oakland, CA 946111548458706
  7. David Hirota, M.D.Ontario, CA 917611699735191
  8. Caleb Hirsch, MDWest Hills, CA 913071619976800
  9. Calvin Hirsch, MDSacramento, CA 958171073597332
  10. Jeffrey Hirsch, M.D.Los Angeles, CA 900351043354640
  11. Kevin Hirsch, MDSan Diego, CA 921031720018344
  12. Martin Hirsch, MDLos Angeles, CA 900271881765774
  13. Julian Hirschbaum, DOLos Angeles, CA 900331245762228
  14. Joel Hirschberg, MDRancho Mirage, CA 922701962474650
  15. Neil Hirschenbein, M.D.,PHDSan Diego, CA 921211457570889
  16. Kristine Hirschfield, MDLos Angeles, CA 900251780670091
  17. Jacques Hirschler, M.D.Oakland, CA 946111114160637
  18. David Hirshfield, MDLa Jolla, CA 920371538127402
  19. John Hirshleifer, M.DOakland, CA 946121407893621
  20. Michael Hirt, M.D.Tarzana, CA 913561639279292
  21. Spencer Hirt, DOLa Jolla, CA 920371306370747
  22. John Hiss, M.D.Concord, CA 945201386663052
  23. Laszlo Hites, MDOakland, CA 946181962560250
  24. Amit Hiteshi, M.D.Corona, CA 928811316203250
  25. Erick Hjortsvang, MDArroyo Grande, CA 934201275611857
  26. Lisa Hladik, M.D.Burlingame, CA 940101437473840
  27. Min Hlaing, M.D.French Camp, CA 952311518122449
  28. Saw Hlaing, MDFresno, CA 937201417035247
  29. Mark Hlavac, MDWalnut Creek, CA 945981255419354
  30. Patricia Hlavin, MDSan Diego, CA 921611164482378
  31. Su Hline, M.D.Loma Linda, CA 923541174652259
  32. Andrew Ho, M.D.West Hollywood, CA 900481033361225
  33. Andy Ho, M.D.Westminster, CA 926831801850821
  34. Bao Ho, M.D., D.OChula Vista, CA 919101417301128
  35. Betty Ho, MDRedwood City, CA 940631922186568
  36. Chao HoSan Leandro, CA 945641629161146
  37. Christine Ho, MDSan Francisco, CA 941101558372599
  38. Cynthia Ho, M.D.Los Angeles, CA 900331780886804
  39. David Ho, MDLos Angeles, CA 900331902218100
  40. Diane Ho, M.D.Los Angeles, CA 900361811182983
  41. Edmund Ho, M.D.West Los Angeles, CA 900251811209810
  42. Gavin Ho, MDSanta Monica, CA 904041760942841
  43. Gustin Ho, M.D.San Francisco, CA 941081437189966
  44. Helen Ho, M.D.Fremont, CA 945381144311705
  45. Irene Ho, MDSanta Clara, CA 950511114004058
  46. Jensine Ho, M.D.Sacramento, CA 958161770864779
  47. John Ho, MDFountain Valley, CA 927081841267366
  48. Joshua Ho, MDWalnut Creek, CA 945961326788514
  49. Joyce Ho, M.D.Hanford, CA 932301962943316
  50. Ka Ho, MDBaldwin Park, CA 917061881746246

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.