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 351 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. Marcus Zachary, DOSan Francisco, CA 941091396859229
  2. Olivia Zachary, M.D.Los Angeles, CA 900951912927492
  3. Leo Zacks, M.D.Temecula, CA 925901386038578
  4. Alidad Zadeh, D.O.El Centro, CA 922431013154400
  5. Cameron Zadeh, MDThousand Oaks, CA 913601164927943
  6. Shahzad Zafar, MBBSInglewood, CA 903011922990944
  7. Danny Zaghi, MDGlendale, CA 912041801185095
  8. Justin Zaghi, MDLos Angeles, CA 900361427476654
  9. Nikki Zahabi, DOIrvine, CA 926181437506847
  10. Shahab Zahed, MDOrange, CA 928681780690131
  11. Shuhab Zaher, DOIrvine, CA 926181164163069
  12. Adnan Zahid, MDEscondido, CA 920291285821207
  13. Nosherwan Zahid, MDSacramento, CA 958161205463650
  14. Gregory Zahner, MDSan Francisco, CA 941431427685767
  15. Hovra Zahoor, M.DHuntington Park, CA 902551437730314
  16. Talal Zahoor, MDSeaside, CA 939551912352162
  17. Haroon ZaidiSacramento, CA 958251780320325
  18. Syed Zaidi, M.D.Carmichael, CA 956011821296963
  19. Syeda ZaidiFresno, CA 937011619439767
  20. Samrah Zaigham, M.DAntioch, CA 945311578915658
  21. Ennis Zaitoon, M.D.Corona, CA 928831235307141
  22. Robin Zakariaei, M.D.Encino, CA 913161457509259
  23. Hany Zaki, M.D.Pasadena, CA 911061376697151
  24. Michelle Zaki, D.O.Corona, CA 928831992237325
  25. Katerina Zakka, MDLos Angeles, CA 900341013544337
  26. Joseph Zaky, M.D.Van Nuys, CA 914051174687180
  27. Sami Zakzook, M.D.Sepulveda, CA 913431336259464
  28. Sadman Zaman, DOThousand Oaks, CA 913601669112454
  29. Maziar Zamani, M.D.Laguna Hills, CA 926531518056027
  30. Nasim Zamani, MDFresno, CA 937201750071148
  31. Siamak Zamani, M.D.Rancho Santa Margarita, CA 926881730245358
  32. Maria Zambrano, M.D.Canyon Country, CA 913871740211291
  33. Stacy ZambranoConcord, CA 945181992094171
  34. Jade Zamorano, MDLos Angeles, CA 900951700464161
  35. Valerie Zamudio, MDLos Angeles, CA 900331003174053
  36. Uma Zamvar, MDSanta Clara, CA 950511437236379
  37. Alex Zand, MDOrange, CA 928681649288002
  38. Ben Zandpour, MDRancho Palos Verdes, CA 902751386655843
  39. Suhaib Zanial, MDBakersfield, CA 933011275611436
  40. Saeed Zanjani, M.D.Orange, CA 928671588809446
  41. Eduardo Zapata, D.O.Woodland, CA 956951972525491
  42. Martin Zapata, D.ONorwalk, CA 906501689628240
  43. Enrique Zarate, MDTracy, CA 953761417939851
  44. David Zarian, MDEncino, CA 914361629179288
  45. Ceyda Zarifi, DORiverside, CA 925051215315924
  46. Riquaza Zavahir, M.D.Marina Del Rey, CA 902921326072380
  47. Sonia Zaveri, D.O.Santa Rosa, CA 954031295078897
  48. Shirin Zavoshi, MDSan Ramon, CA 945831205500741
  49. Aung Kyaw Zaw, MDArcadia, CA 910071306108634
  50. Moe Zaw, M.D.Chula Vista, CA 919101063751444

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.