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 114 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. Hector Guzman, D.O., MPHSacramento, CA 958141881951168
  2. Alex GuznerSan Jose, CA 951281730607292
  3. Robert Guzoujian, M.D.Clovis, CA 936121972584472
  4. Priyanka GwalaniFremont, CA 945361972958247
  5. Barry Gwartz, M.D.Los Angeles, CA 900461265683767
  6. Vahe Gyulnazaryan, M.D.Burbank, CA 915051053757781
  7. Alvin Ha, D.O.Anaheim, CA 928011568812113
  8. Dennis Ha, MDSan Leandro, CA 945781922460617
  9. Iris Ha, M.D.Chula Vista, CA 919101801244512
  10. Kevin HaOakland, CA 946021174084834
  11. Lawrence Ha, M.D.San Diego, CA 921341932488384
  12. Leslie Ha, MDSacramento, CA 958171114676053
  13. Nga Ha, M.D.Pasadena, CA 911051477504892
  14. Raymond Ha, MDSan Francisco, CA 941161093020638
  15. Robert Ha, MDGarden Grove, CA 928441750302188
  16. Tuong Ha, M.D.Covina, CA 917221568447860
  17. Maureen Haas, M.D.San Luis Obispo, CA 934011760437230
  18. Terry Haas, M.D.Vista, CA 920831891868212
  19. Tyler Haase, MDLoma Linda, CA 923541679151310
  20. Allison Habas, M.D.Encinitas, CA 920241861400988
  21. Jessica Haberer, M.D.San Francisco, CA 941431417022831
  22. Mark Haberman, M.D.Escondido, CA 920251497780563
  23. Ali Habib, D.OFountain Valley, CA 927081821471442
  24. Asma Habib, MDSanta Clara, CA 950511033225784
  25. Misha Habib, M.D.Roseville, CA 956611477866549
  26. Munira Habib, M.DLos Angeles, CA 900331417256173
  27. Shehnaz Habib, M.D.Panorama City, CA 914021215039631
  28. Alex Habibe, MDFresno, CA 937201629075395
  29. Joseph Habis, M.D.San Rafael, CA 949031760439681
  30. Gakwaya Habiyaremye, MDYreka, CA 960971255828869
  31. Grace Hacegaba, MDHarbor City, CA 907101184772964
  32. Terrence Hack, M.D., FACCSalinas, CA 939051760431274
  33. Thomas Hackford, M.D.Oakland, CA 946111972598639
  34. Shiva Hadadianpour, MDFresno, CA 937011184328528
  35. Anastasia Haddad, MDOrange, CA 928681578067682
  36. David HaddadCamarillo, CA 930121588036438
  37. Evelyn Haddad, M.D.San Mateo, CA 944031295936755
  38. Noushin Haddad-Tehrani, MDWalnut Creek, CA 945981215988878
  39. Mouna Haddad-Wilson, M.D.Redlands, CA 923741114946340
  40. Tanya Haddadin, DOLos Angeles, CA 900591720722028
  41. Diane Haddock, M.D.Sacramento, CA 958171013991553
  42. Lindsey Haddock, MDStanford, CA 943051144616590
  43. Ghassan Hadi, M.D.Upland, CA 917861558497891
  44. Mohanad Hadi, M.D.San Diego, CA 921031194258087
  45. Molood Hadi, DOIrvine, CA 926181083902092
  46. Sattar Hadi, MDMonterey, CA 939401437105145
  47. Gloria Hadsall, M.D.Santa Barbara, CA 931101912919812
  48. Jeffrey Hadsall, M.D.Santa Barbara, CA 931051275641714
  49. Astrid Haefner, M.D.Santa Clara, CA 950511083993729
  50. Kurt Hafer, MDStanford, CA 943051467540500

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.