NPPES file of Aug 9, 2026

Nephrology Physician in California

1,468 NPPES records list nephrology physician with a practice address in California, 3.8 per 100,000 residents, the 22nd highest rate of 51. Los Angeles and San Diego have the most; each record links to the provider's NPI and the California license search. Page 1 of 30.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207RN0300X · 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, 151

  1. Los Angeles151
  2. San Diego75
  3. San Francisco70
  4. Sacramento57
  5. Stanford39

Nephrology Physician records in California

  1. Antoine Abcar, MDLos Angeles, CA 900271245301159
  2. Basmah Abdalla, M.D.Los Angeles, CA 900951629394002
  3. Omaran Abdeen, M.D.Mission Hills, CA 913451700878410
  4. Joseph Abdelmalek, M.DSan Diego, CA 921031740485531
  5. Lama Abdelnour, MDLos Angeles, CA 900951477817542
  6. Amir Abdi Pour, MDLoma Linda, CA 923541912187477
  7. Anas Abou-Ismail, MDPalm Springs, CA 922621598078784
  8. Graham Abra, M.D.Stanford, CA 943051760644678
  9. Sreedhar Adapa, M.D.Visalia, CA 932771881997872
  10. Gbemisola Adenuga, M.D.Los Angeles, CA 900331952464661
  11. Adegbenga Adetola, MDLynwood, CA 902621881776219
  12. Deborah Adey, M.D.Sacramento, CA 958171609823459
  13. Judy Adler, M.D.San Diego, CA 921031326043894
  14. Sharon Adler, M.D.Torrance, CA 905021467431122
  15. Maryam Afkarian, M.D., PH.D.Sacramento, CA 958171255387338
  16. Rouzbeh Afsari, M.D.Northridge, CA 913251962633289
  17. Masoud Afshar, M.D.Imperial, CA 922511225287378
  18. Jay Agarwal, M.D.San Bernardino, CA 924041326091737
  19. Melvin Agatep, M.D.Los Angeles, CA 900571851440036
  20. Archana Aggarwal, M.D.Castro Valley 94546, CA 945461326024084
  21. Siddhartha Agrawal, M.D.Visalia, CA 932771477761963
  22. Jacob Ahdoot, M.D.Los Angeles, CA 900331689878852
  23. Jacob Ahdoot, MDIrvine, CA 926181952356214
  24. Rebecca Ahdoot, M.D.Orange, CA 928681851735211
  25. Patrick Ahearn, MDStanford, CA 943051972878072
  26. Waseem Ahmad, MDVallejo, CA 945891366520108
  27. Khaja Ahmed, M.D.Torrance, CA 905031033137633
  28. Zavier Ahmed, M.D.Fountain Valley, CA 927081255677134
  29. Jeanie Ahn, M.D.Fremont, CA 945381053359356
  30. Afshin Ahoubim, M.DLoma Linda, CA 923541932513488
  31. Michael Ajuria, M.D.Berkeley, CA 947051922425057
  32. Mohammad Akmal, M.D.Los Angeles, CA 900331356378087
  33. Akpobo Akporotu, MDRiverside, CA 925031396285698
  34. Fawaz Al Ammary, M.D.Orange, CA 928681992918916
  35. Maha Al Baghdadi, MDLos Angeles, CA 900951033670732
  36. Mohammad Al Hasan, MDHollister, CA 950231932183829
  37. Hira Al-AdroosRiverside, CA 925011942950951
  38. Zaid Al-Dahhan, M.D.Escondido, CA 920291740716828
  39. Haseeb Al-Mufti, M.D.San Leandro, CA 945781649223017
  40. Mohammed Alam, M.D.Upland, CA 917861750316139
  41. Ronald Albright, M.D.Freedom, CA 950191093839011
  42. Betzabe Alday, M.D.Downey, CA 902421013027325
  43. Jadwiga Alexiewicz, MDSan Diego, CA 921231760487458
  44. Tameem Alhayya, MDCorona, CA 928791649283557
  45. Hatem Ali, M.D.Highland, CA 923461821259466
  46. Nausheen Ali, M.D.Anaheim, CA 928011609869296
  47. Slamat Ali, MDBakersfield, CA 933081851546121
  48. Syed Ali, M.D.Sacramento, CA 958251376799858
  49. Syeda Ali, MDPasadena, CA 911051528051984
  50. Behzad Alimohammadi, MDYorba Linda, CA 928871629156534

Source: CMS NPPES, primary taxonomy 207RN0300X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 22 of 51 per resident

  1. Texas3.8
  2. Virginia3.8
  3. Georgia3.8
  4. California3.8
  5. South Carolina3.8
  6. Michigan3.7
  7. 50 states and D.C.4.0

Source: CMS NPPES, primary taxonomy 207RN0300X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

88.2% of these records appear in a Medicare file, against 85.8% 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. California88.2%
  2. United States85.8%

Nephrology Physician records in California, measured

  • In a Medicare file1,295 of 1,468 · 88.2% here, 85.8% nationally
  • In the CMS Doctors and Clinicians file1,128 · 76.8% here, 76.0% nationally
  • Not updated in five years or more909 · 61.9% here, 54.9% nationally
  • Median graduation year2001 · the 1,128 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207RN0300X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,468 NPPES records list nephrology physician (207RN0300X) as their primary taxonomy with a practice address in California: 3.8 per 100,000 residents against 4 nationally (50 states and D.C.). Los Angeles has 151 of them (10%).

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. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651

States with a similar rate per 100,000

  1. South Carolina3.8
  2. Georgia3.8
  3. Virginia3.8
  4. Michigan3.7

The largest states

  1. Texas1,159
  2. New York1,049
  3. Florida840
  4. Pennsylvania651
  5. Illinois572

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.