NPPES file of Aug 9, 2026

Hospitalist Physician in California

3,099 NPPES records list hospitalist physician with a practice address in California, 8 per 100,000 residents, the 26th 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 60 of 62.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 208M00000X · 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, 229

  1. Los Angeles229
  2. San Diego173
  3. San Francisco161
  4. Sacramento155
  5. Palo Alto112

Hospitalist Physician records in California

  1. Gregory Welsh, MDStanford, CA 943051982600342
  2. Hui-Shan Wen, DOSan Rafael, CA 949031598843070
  3. Nancy Wen, MDSacramento, CA 958231598384695
  4. Shan Wen, M.D.San Francisco, CA 941171194056465
  5. Andre Westin, M.D., MPHWalnut Creek, CA 945951316138886
  6. Julia Weston, MDLa Jolla, CA 920371467101162
  7. Dennis Whang, M.D.Sacramento, CA 958171740507763
  8. Caitlin Whelan, MDLa Jolla, CA 920371528520780
  9. Monique White-Dominguez, D.O.Duarte, CA 910101336457902
  10. Robert Wickham, MDVallejo, CA 945891598843328
  11. Jamie Wiggin, MDSanta Monica, CA 904041164004842
  12. Albert Wilburn, MDFresno, CA 937201104904010
  13. Mylea Wiley, M.D.Fresno, CA 937201275535627
  14. John Willhoite, M.D.Palo Alto, CA 943041164802161
  15. Amber Williams, D.O.Northridge, CA 913251124279088
  16. Jason Williams, M.D.Los Angeles, CA 900951598052953
  17. John Williams, DORedding, CA 960011518450113
  18. Neil Williams, MDLos Angeles, CA 900951174141253
  19. Nicole Williams, M.D.Los Angeles, CA 900481104183508
  20. Sally Williams, MDLa Jolla, CA 920371508446303
  21. James H Williams Jr, MDOrange, CA 928681376637637
  22. Paul Willis, MDPanorama City, CA 914021649603390
  23. Kristofer Wills, DOConcord, CA 945201396164414
  24. Alison Wilson, DOSalinas, CA 939011033543939
  25. Edward Wilson, D.O.Chico, CA 959261376921809
  26. Maurice Wilson, MDModesto, CA 953551669430468
  27. Rex Wilson, M.D.Redding, CA 960011619971090
  28. Sandar Win, MDFresno, CA 937211639304975
  29. Thein Win, MDWalnut Creek, CA 945961932287091
  30. Joseph Windheim, MDSanta Monica, CA 904041033739339
  31. Tanya-Sue Winey, M.D.La Jolla, CA 920371578673901
  32. Aimee Wing, M.D.Ventura, CA 930031578724639
  33. Shane Wing, MDLa Jolla, CA 920371730718818
  34. David Winn, M.D.San Marcos, CA 920691699887646
  35. William Winter, M.D.Los Angeles, CA 900951437680725
  36. Nathaniel Wise, MDRancho Mirage, CA 922701871083857
  37. Michelle Withee, M.D.Santa Barbara, CA 931051821219965
  38. Emilia Wobga-Pasiah, MDNorthridge, CA 913251407219033
  39. Graham Wolf, MDLos Angeles, CA 900481154701175
  40. Salina Wolf, M.D.Newport Beach, CA 926631720157191
  41. Jascha Wollank, M. D.Newport Beach, CA 926631093068454
  42. Barry Wong, D.O MPHOakland, CA 946091558768309
  43. Christine Wong, M.D.Oakland, CA 946091699092239
  44. Chung Ki Wong, D.O.Sacramento, CA 958161275996134
  45. George Wong, DOSacramento, CA 958161346681517
  46. Jessalyn Wong, D.O.Placentia, CA 928701992168884
  47. Stephanie WongOakland, CA 946091770045650
  48. Steven Wong, MDTorrance, CA 905051699732610
  49. Tony Wong, MDOakland, CA 946111295804490
  50. Andrew Wu, M.D.Santa Cruz, CA 950651629129812

Source: CMS NPPES, primary taxonomy 208M00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 26 of 51 per resident

  1. Utah8.3
  2. Ohio8.3
  3. Florida8.0
  4. California8.0
  5. Massachusetts7.5
  6. Nevada7.5
  7. 50 states and D.C.8.3

Source: CMS NPPES, primary taxonomy 208M00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

89.7% of these records appear in a Medicare file, against 90.5% 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. California89.7%
  2. United States90.5%

Hospitalist Physician records in California, measured

  • In a Medicare file2,779 of 3,099 · 89.7% here, 90.5% nationally
  • In the CMS Doctors and Clinicians file2,509 · 81.0% here, 83.1% nationally
  • Not updated in five years or more1,522 · 49.1% here, 39.1% nationally
  • Median graduation year2010 · the 2,505 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 208M00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

3,099 NPPES records list hospitalist physician (208M00000X) as their primary taxonomy with a practice address in California: 8 per 100,000 residents against 8.3 nationally (50 states and D.C.). Los Angeles has 229 of them (7%).

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 York2,067
  2. Florida1,817
  3. Texas1,587
  4. Illinois1,535

States with a similar rate per 100,000

  1. Guam7.8
  2. Ohio8.3
  3. Utah8.3
  4. Massachusetts7.5

The largest states

  1. New York2,067
  2. Florida1,817
  3. Texas1,587
  4. Illinois1,535
  5. Pennsylvania1,424

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.