NPPES file of Aug 9, 2026

Urology Physician in California

1,524 NPPES records list urology physician with a practice address in California, 3.9 per 100,000 residents, the 37th 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 29 of 31.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208800000X · 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, 226

  1. Los Angeles226
  2. San Diego90
  3. San Francisco88
  4. Orange56
  5. Sacramento43

Urology Physician records in California

  1. Caroline Vilchis, MDOceanside, CA 920561083810410
  2. Jacqueline Villalta, M.D.San Francisco, CA 941431982847265
  3. Humberto Villarreal, M.D.Glendora, CA 917411801023072
  4. Mark Vogel, MDLos Angeles, CA 900481578653457
  5. Hillary Wagner, M.D.Loma Linda, CA 923541437579570
  6. Robert Waguespack, M.D.Bakersfield, CA 933011588647481
  7. Mark Wainstein, MDTruckee, CA 961611225033996
  8. Arman Walia, MDSan Diego, CA 921031437642352
  9. Harvey Wallack, M.D.Thousand Oaks, CA 913601811096407
  10. Caroline Wallner, M.D.Burbank, CA 915051114169760
  11. Peter Walther, M.D.La Jolla, CA 920371053359307
  12. Agnes Wang, M.D.San Francisco, CA 941181477639771
  13. Alexis Wang, MDWalnut Creek, CA 945981538663638
  14. Andrew Wang, M.D.Stockton, CA 952091083146286
  15. Edward Wang, MDSan Jose, CA 951161972558666
  16. John Wang, D.O.Yuba City, CA 959911154384352
  17. Nancy Wang, M.D.Mountain View, CA 940401891105706
  18. Yu Wang, MDFontana, CA 923351215009790
  19. Gene Ward, M.D.Playa Del Rey, CA 902931437432283
  20. Arthur Warshawsky, MDOceanside, CA 920561578597506
  21. Samuel Washington, MD, MASSan Francisco, CA 941431275890055
  22. Jeffrey Wei, MDLos Angeles, CA 900331518583897
  23. Alan Weinberg, M.D.Fullerton, CA 928351851398382
  24. James WeinbergerBeverly Hills, CA 902111295239895
  25. Adam Weiner, MDLos Angeles, CA 900951104288356
  26. Alex Weinstein, MDSanta Barbara, CA 931051356335913
  27. Philip Weintraub, M.D.Burbank, CA 915051750379764
  28. Martin Weissman, M.D.Orange, CA 928681629096862
  29. Christopher Welty, MDOakland, CA 946091750571360
  30. Chih-Hsin Wen, MDOakland, CA 946091477517084
  31. David Wenzler, MDSan Diego, CA 921031407056997
  32. Lawrence Werboff, M.D.San Francisco, CA 941151801990841
  33. Philip Werthman, MDLos Angeles, CA 900671023038700
  34. Patrick Wherry, MDSan Jose, CA 951241134127269
  35. Lee White, MDMountain View, CA 940401841723335
  36. Marina White-Nagy, MDMountain View, CA 940401538247200
  37. Jared Whitson, M.D.Sacramento, CA 958171225161631
  38. Sidney Wilberforce, M.D.Walnut Creek, CA 945961346423449
  39. Neville Williams, MDPasadena, CA 911051588774368
  40. Stephen Williams, MDLos Angeles, CA 900271093886079
  41. Cameron Wilson, MDLa Mesa, CA 919421770780157
  42. Steven Wilson, MDIndio, CA 922011043211675
  43. Timothy Wilson, MDSanta Monica, CA 904041912005422
  44. Richard WinelandAnaheim, CA 928011326251703
  45. Ashley Winter, M.D.Pasadena, CA 911061295050102
  46. Howard Winter, MDPanorama City, CA 914021679632293
  47. Harley Wishner, M.D.Calabasas, CA 913021245378819
  48. Michael Witthaus, M.D.San Diego, CA 921031871987180
  49. Kristina Wittig, MDSanta Clarita, CA 913551215995998
  50. Brad Wolfson, MDPalm Springs, CA 922621700843174

Source: CMS NPPES, primary taxonomy 208800000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 37 of 51 per resident

  1. Oklahoma4.0
  2. Iowa4.0
  3. Hawaii4.0
  4. California3.9
  5. Delaware3.8
  6. Arizona3.7
  7. 50 states and D.C.4.3

Source: CMS NPPES, primary taxonomy 208800000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

81.6% of these records appear in a Medicare file, against 79.8% 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. California81.6%
  2. United States79.8%

Urology Physician records in California, measured

  • In a Medicare file1,244 of 1,524 · 81.6% here, 79.8% nationally
  • In the CMS Doctors and Clinicians file1,050 · 68.9% here, 66.7% nationally
  • Not updated in five years or more902 · 59.2% here, 57.2% nationally
  • Median graduation year2003 · the 1,049 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208800000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,524 NPPES records list urology physician (208800000X) as their primary taxonomy with a practice address in California: 3.9 per 100,000 residents against 4.3 nationally (50 states and D.C.). Los Angeles has 226 of them (15%).

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. New York1,091
  2. Florida1,020
  3. Texas960
  4. Pennsylvania663

States with a similar rate per 100,000

  1. Hawaii4.0
  2. Iowa4.0
  3. Oklahoma4.0
  4. Delaware3.8

The largest states

  1. New York1,091
  2. Florida1,020
  3. Texas960
  4. Pennsylvania663
  5. Illinois629

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.