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 9 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. Jay Garg, MDStanford, CA 943051073844510
  2. Pranav Garimella, M.D.La Jolla, CA 920371477880102
  3. Sanford Gaynor, M.D.Gardena, CA 902471780661405
  4. Yuqiang Ge, M.D., PHDModesto, CA 953501740588680
  5. Woldemariam Gebreselassie, MDFontana, CA 923351811056427
  6. James Gehrig, MDSacramento, CA 958251619049434
  7. Ilya Gelman, M.D.Los Angeles, CA 900481811008022
  8. Supriya Gerardine, M.D.Fresno, CA 937201205217494
  9. Arshia Ghaffari, D.O.Los Angeles, CA 900331235236183
  10. Alan Giberson, M.D.San Francisco, CA 941041992831820
  11. Nolan Giehl, M.D.Woodland Hills, CA 913671538600895
  12. Grant Gifford, DOSan Francisco, CA 941431578149258
  13. Hussain Gilani, M.D.Oakland, CA 946091588800080
  14. Sukhpal Gill, M.DArcadia, CA 910071124129580
  15. Richard Glassock, M.D.Laguna Niguel, CA 926771649548579
  16. Denis Glenn, MDSan Francisco, CA 941431053492199
  17. Jeffrey Glick, M.D.North Hollywood, CA 916071477533511
  18. Subil Go, MDYuba City, CA 959911104043660
  19. Lindsey Goetz, MDSacramento, CA 958171356669865
  20. Muralikrishna Golconda, MDSacramento, CA 958171598770091
  21. Lawrence Gold, MDSacramento, CA 958171710213517
  22. David Goldberg, MDSan Francisco, CA 941181740296276
  23. Joel Golden, M.D.Bellflower, CA 907061386651230
  24. Dalia Goldfarb-Waysman, M.D.Los Angeles, CA 900731699887752
  25. William Golgert, M.D.Santa Barbara, CA 931101366530412
  26. Carlos Gonzalez, M.D.Montebello, CA 906401891722369
  27. Isaac Gorbaty, M.D.Tarzana, CA 913561477562718
  28. Earl Gordon, M.D.Santa Monica, CA 904041053534925
  29. Ray Goshtaseb, M.D.Torrance, CA 905051972907574
  30. Toby Gottheiner, MDPalo Alto, CA 943011255362539
  31. Arian Gower, M.D.Thousand Oaks, CA 913601639531403
  32. Morris Grabie, MDSanta Monica, CA 904041659399681
  33. Stephen Graham, M.D.,Los Angeles, CA 900481801868112
  34. George Grames, M.D.Fontana, CA 923351770693087
  35. Abe Green, MDLos Angeles, CA 900671649462144
  36. Bruce Greenfield, M.D.Los Angeles, CA 900151043224686
  37. Joshua Greenstein, M.D.Escondido, CA 920291104881457
  38. Ramon Guadiz, M.D.Lynwood, CA 902621003998147
  39. Ajay Gupta, M.D.Torrance, CA 905021477529279
  40. Mamatha Gupta, M.D.Mather, CA 956551376760900
  41. Naveen Gupta, MDRiverside, CA 925051790979938
  42. Saloni GuptaColton, CA 923241801473517
  43. Victor Gura, MDBeverly Hills, CA 902111932296357
  44. Harmeet Gurm, MDFresno, CA 937201972831790
  45. Madeleine Gysi, MDMission Hills, CA 913451679922892
  46. Vince Ha, MDCorona, CA 928811568587061
  47. Michael Habashy, MDBurbank, CA 915051073618633
  48. Bassam Hadaya, MDLancaster, CA 935341801864301
  49. Bassel Hadaya, M.D.Lancaster, CA 935341174629950
  50. Afsaneh Haftbaradaran Mohammadi, M.D.Fountain Valley, CA 927081902040009

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.