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 28 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. Vimal Vermani, M.D.Ventura, CA 930031013916279
  2. Gerino Vicencio, MDLos Angeles, CA 900341265591911
  3. John Videen, MDChula Vista, CA 919111043318199
  4. Jayakumar Vidhun, M.D.Whittier, CA 906021275685638
  5. Svetlana VillanoLos Angeles, CA 900891891222618
  6. Pablo Gonzalo Villanueva-MeyerGlendale, CA 912061083076814
  7. Rafael Villicana, MDLoma Linda, CA 923541669496832
  8. Bhupinder Virk, M.D.San Leandro, CA 945781740490507
  9. Nhat Vo, MDFountain Valley, CA 927081497382485
  10. John Von Brecht, M.D.Roseville, CA 956611508893173
  11. Santhi VooraLos Angeles, CA 900331669748851
  12. Hoa Vu, MDHighland, CA 923461528041092
  13. Sharmilee Vuyyuru, D.OSacramento, CA 958171811357981
  14. Norman Wall, DORedding, CA 960011861416661
  15. David Wallace, DONorthridge, CA 913251396364402
  16. Aileen Wang, MDStanford, CA 943051356755532
  17. Brian Wang, D.O.Newport Beach, CA 926631235591181
  18. Edward Wang, MDBellflower, CA 907061053460477
  19. Hubert Wang, MDSan Jose, CA 951191316574403
  20. Jackson Wang, MDGrass Valley, CA 959491003183617
  21. Jin Wang, M.D.Upland, CA 917861154353126
  22. Lin WangLos Angeles, CA 900151366974859
  23. Lynn Wang, M.D.Monterey Park, CA 917541598715062
  24. Sheng-Yong Wang, M.D. & PH.D.San Jose, CA 951161700813318
  25. Weng-Lih Wang, M.D.Wildomar, CA 925951467499145
  26. Yungpo Wang, MDBaldwin Park, CA 917061639228919
  27. Harry Ward, M.D.Sacramento, CA 958111992815336
  28. Allen Warner, M.D.Long Beach, CA 908061699731513
  29. Vasyl Warvariv, M.D.Stanford, CA 943051033201710
  30. Victor Wassily, M.D.Montebello, CA 906401962423590
  31. Matthew Wauson, MDSan Diego, CA 921341780656694
  32. Allison Webber, M.D.San Francisco, CA 941431538328588
  33. Luke WebsterSan Diego, CA 921031235660887
  34. Eric Wechsler, M.D.Newport Beach, CA 926631659469526
  35. Michael Weiner, M.D.San Francisco, CA 941211346359502
  36. Theodore Weis, M.D.Walnut Creek, CA 945981679526313
  37. Robert Weiss, M.D.Sacramento, CA 958171336124346
  38. Mark Weissman, M.D.Burbank, CA 915051871654384
  39. Kathryn Welty, MDCastro Valley, CA 945461740476761
  40. Yumeng Wen, MDStanford, CA 943051124470372
  41. Adrian Whelan, MB BCH BAOSan Francisco, CA 941431366977100
  42. Nasim Wiegley, M.D.Sacramento, CA 958171992090815
  43. Vijayalakshmi Wijeyakumar, M.D.Fountain Valley, CA 927081053491332
  44. Donald Williams, M.D.Glendale, CA 912061619164720
  45. Carl Wilson, MDSanta Rosa, CA 954051033110465
  46. James Wilson, MD, MSLos Angeles, CA 900451912943168
  47. Lei Win, M.DLong Beach, CA 908061124436001
  48. Yin WinBakersfield, CA 933091154562957
  49. Jan Winetz, MDSan Jose, CA 951241790777852
  50. Stuart Winkler, M.D.Torrance, CA 905051376546127

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.