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 14 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. Andrew Koren, M.D.Palo Alto, CA 943041972676872
  2. Julia Krasner, MDVallejo, CA 945891225116056
  3. Paul Krasner, M.D.Anaheim, CA 928011477545838
  4. Gregory Krastein, MDOxnard, CA 930361942358759
  5. Soloman Kreik, DOMoreno Valley, CA 925531235717604
  6. Gopal Krishna, MDSalinas, CA 939011073692083
  7. Wen-Tsang Ku, M.D.San Jose, CA 951161710986161
  8. Dean Kujubu, MDLos Angeles, CA 900271306917349
  9. Jennifer Kumar, M.D.Santa Clara, CA 950511457617896
  10. Nirmal Kumar, M.D.Pasadena, CA 911071578652111
  11. Prashanth Kumar, M.D.Victorville, CA 923951821293382
  12. Ramdas Kumar, M.D.Thousand Oaks, CA 913601669631248
  13. Sanjeev Kumar, MDW Hollywood, CA 900481821736539
  14. Surinder Kumar, M.D., FACP,FASN,CCDSanta Cruz, CA 950651437241809
  15. Victoria Kumar, MDLos Angeles, CA 900271568521128
  16. Shiang-Cheng Kung, MDSan Francisco, CA 941091427017185
  17. Manjula Kurella, MD, MPHSan Francisco, CA 941151720032972
  18. Ira Kurtz, MDLos Angeles, CA 900951538188990
  19. Sophie Kwok, M.D.Los Angeles, CA 900171639370596
  20. Kay Kyaw, M.D.Montebello, CA 906401912223850
  21. Naing Kyaw, MDOceanside, CA 920561689784308
  22. Peter Lac, M.D.Wildomar, CA 925951881617652
  23. Richard Lafayette, M.D.Stanford, CA 943051922141951
  24. Eric Lai, M.D.Pleasanton, CA 945881942592522
  25. George Lai, M.D.Hayward, CA 945451043398803
  26. Yogita Lakhera, M.D.La Jolla, CA 920371083972483
  27. Fadi Lakkis, MDStanford, CA 943051417175910
  28. Ian Lam, MDMountain View, CA 940401518169580
  29. Claudia Landis, MDSan Bernardino, CA 924041871655274
  30. Ronald Lang, M.D.West Hollywood, CA 900481639230550
  31. Dennis Lange, M.D,Montebello, CA 906401336224757
  32. Dana Larsen, MDSan Francisco, CA 941431497275630
  33. Saman Lashkari, M.D.Tarzana, CA 913561447282421
  34. Christine Lau, M.D.Harbor City, CA 907101447401237
  35. Wei Ling Lau, M.D.Irvine, CA 926971558572032
  36. David Law, MDOakland, CA 946111235132580
  37. Jason LawConcord, CA 945201114345006
  38. Charles Le, M.D.San Diego, CA 921151821243759
  39. Gigi Le, MDLos Angeles, CA 900341780751701
  40. Hiep Le, M.D.Highland, CA 923461457393308
  41. Kim Le, M.D.Los Angeles, CA 900151780698340
  42. Oliver Le, MDHighland, CA 923461457746026
  43. Thu Le, M.D.Orange, CA 928681396846317
  44. Tuan Le, MDHarbor City, CA 907101770632051
  45. Steven Ledesma, M.D.Oxnard, CA 930361386718799
  46. Mateo Ledezma, MDLos Angeles, CA 900271841361813
  47. Benjamin Lee, MD, MASSan Francisco, CA 941431194091199
  48. Brian Lee, MDLynwood, CA 902621558457556
  49. Brian Lee, M.D.San Francisco, CA 941431518056571
  50. David Lee, MDLos Angeles, CA 900951639198534

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.