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 10 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. Jehad Haggiagi, M.D.Mission Hills, CA 913451437420072
  2. Masoud Haghi, DOOroville, CA 959661134653769
  3. Hamid Hajmomenian, MDLos Angeles, CA 900951023036068
  4. Belal Hakim, M.D.Stanford, CA 943051144681065
  5. Hiba Hamdan, M.D.Yuba City, CA 959911487856142
  6. Anum Hamiduzzaman, M.D.Orange, CA 928681649681495
  7. John Hammes, M.D.San Diego, CA 921081891766994
  8. Huy Han, M.D.El Monte, CA 917311649321761
  9. Jonardi Handoko, MDUpland, CA 917861780664581
  10. Ramy Hanna, M.D.Orange, CA 928681518150283
  11. Ali Hariri, M.D.Los Angeles, CA 900361104860626
  12. Kevin Harley, M.D.Orange, CA 928681194924100
  13. Kimberly Harper, M.D.La Jolla, CA 920371699753103
  14. Irma Harriman, M.D.Panorama City, CA 914021619976784
  15. David Hartenbower, MDLos Angeles, CA 900951205854809
  16. Lewis Haut, MDSan Jose, CA 951281760490510
  17. Fred Hauter, MDWoodland Hills, CA 913671235287178
  18. Chenyin He, MDConcord, CA 945201184833857
  19. Michael Healy, M.D.Inglewood, CA 903011861495020
  20. David Heaney, M.D.Visalia, CA 932911013902733
  21. Joseph Hebreo, M.D.Escondido, CA 920251801868286
  22. Ileana Helms, MDConcord, CA 945201225039142
  23. Theresa HenkeLos Angeles, CA 900481053636977
  24. Nancy Hernandez, DOFullerton, CA 928351831305879
  25. Jan Herrman, MDFontana, CA 923351235200270
  26. George Herron, M.D.Stockton, CA 952041144217654
  27. Philip Hertz, MDDaly City, CA 940151760443725
  28. Avi Hettena, M.D.Rancho Santa Fe, CA 920671013029487
  29. Raimund Hirschberg, M.D.Torrance, CA 905021457362634
  30. Nathaniel Ho, M.D.Laguna Hills, CA 926531497792147
  31. Khoi Hoang, MDSan Jose, CA 951241821099359
  32. Thanh Hoang, M.D.Loma Linda, CA 923541992818892
  33. Sara Holmes, MDNovato, CA 949451801174479
  34. Philip Hom, M.D.Los Angeles, CA 900171740379668
  35. George Hon, MDParamount, CA 907231699772350
  36. Andy Hong, MDLynwood, CA 902621508861667
  37. Annie HongLoma Linda, CA 923571215348776
  38. Adam Horeish, MDChula Vista, CA 919101760461206
  39. Richard Horowitz, M.D.Los Angeles, CA 900481437366804
  40. Kiyoshi Houston, MDFresno, CA 937201225667926
  41. Kevin Hoveida, MDSan Diego, CA 921031508931023
  42. John Howard, M.D.Elk Grove, CA 957581811377062
  43. John Hsieh, M.D.Long Beach, CA 908061659376606
  44. Alex Hsu, MDLakewood, CA 908051265499719
  45. Chi-Yuan Hsu, MDSan Francisco, CA 941431578528295
  46. Raymond Hsu, M.D.San Francisco, CA 941431124139167
  47. Shih Hsu, M.D.Monterey Park, CA 911081245238591
  48. Young Hsu, MDSan Francisco, CA 941151982163101
  49. Kai-Ting Hu, MDSacramento, CA 958231831203900
  50. Edmund Huang, M.D.West Hollywood, CA 900481508061300

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.