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 120 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. Carole Hauser, M.D.Torrance, CA 905051083816508
  2. Karen Hauser, MD, MPHSan Francisco, CA 941151750886594
  3. Michelle Hauser, MDPalo Alto, CA 943041417241712
  4. Stephen Hauser, M.D.San Francisco, CA 941431700996931
  5. Diane Havlir, MDSan Francisco, CA 941101114034915
  6. Joyce Havranek, MDEncinitas, CA 920241134258957
  7. Wadih Hawat, D.O.Moreno Valley, CA 925531275705931
  8. Albert Hawkins, MDSanta Maria, CA 934541588664478
  9. Jack Hawkins, MDSan Diego, CA 921341508445602
  10. Randy Hawkins, M.D.Inglewood, CA 903011760580971
  11. Stephen Hawkins, MDOakland, CA 946111821162421
  12. Dennis HawleyNapa, CA 945581730322017
  13. Aurora Haworth, M.D.Vacaville, CA 956871164684932
  14. Kinji Hawthorne, MDLa Quinta, CA 922531023208683
  15. Douglas Hay, MDColton, CA 923241386690980
  16. Jeffrey Hay, M.D.Sherman Oaks, CA 914031336264993
  17. Ashkan Hayatdavoudi, M.D.La Jolla, CA 920371023313715
  18. Danese Hayes, M.D.Downey, CA 902421689786733
  19. Joseph Hayes, D.O.Bakersfield, CA 933091083681498
  20. Meghan Hayes, M.D.Sacramento, CA 958161851385405
  21. Richard Hayes, MDSan Diego, CA 921201689741605
  22. Kweku Hayfron, M.D., M.S.Dublin, CA 945681932541448
  23. Richard Haynes, MDRoseville, CA 956611760560460
  24. Robert Haynes, MDSacramento, CA 958161255389474
  25. Steven Hays, MDSan Francisco, CA 941431174570576
  26. Donna Haysbert, MDSacramento, CA 958111366976607
  27. Amy Hayton, MDLoma Linda, CA 923541104027515
  28. David Hayward, M.D.Santa Cruz, CA 950651447368576
  29. Umer Hayyat, MDSan Diego, CA 921231851812499
  30. Paul Hazelbaker, DOSan Diego, CA 921011831106103
  31. Gurpreet Hazra, M.D.Union City, CA 945871639257488
  32. Weixiong He, M.D.Roseville, CA 956611245441054
  33. Xu He, D.OFontana, CA 923361568773448
  34. Yangdong HeRancho Cucamonga, CA 917391386907038
  35. Yu Ting He, MDSan Francisco, CA 941341508326026
  36. Michael Head, MDLos Angeles, CA 900951184476913
  37. Georgina Heal, M.D.Monterey, CA 939401639129901
  38. Sindalana HeanTorrance, CA 905051104236330
  39. Brian Hearney, MDRedding, CA 960021962484626
  40. Elaine Hearney, MDRedding, CA 960021609859792
  41. Agiua Heath, M.D.Stanford, CA 943051174747570
  42. Carmen Heath, MDLos Angeles, CA 900341295883007
  43. Jason Heath, MDSacramento, CA 958171306231550
  44. Richard Heather, MDLos Osos, CA 934021487676854
  45. Scott Heatley, M.D.Jackson, CA 956421275609729
  46. Kyle Heber, M.D.Bakersfield, CA 933081811384787
  47. Amy Hecht, M.D.San Francisco, CA 941021134275563
  48. Dovber Hecht, MDBurbank, CA 915051497311468
  49. Frederick Hecht, MDSan Francisco, CA 941101356448336
  50. Hagit Hecht, MDRiverside, CA 925051558516013

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.