NPPES file of Aug 9, 2026

Emergency Medicine Physician in California

7,751 NPPES records list emergency medicine physician with a practice address in California, 20 per 100,000 residents, the 28th 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 150 of 156.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207P00000X · 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, 632

  1. Los Angeles632
  2. San Diego496
  3. Sacramento369
  4. San Francisco289
  5. Oakland247

Emergency Medicine Physician records in California

  1. Sarah Williams, MDStanford, CA 943051366476640
  2. Jacques Williams-Pascal, MDLos Angeles, CA 900591831238534
  3. Andrew WilliamsonSan Diego, CA 921231437579422
  4. Doug Williamson, MDRiverside, CA 925051033267067
  5. Linette Williamson, MDEncinitas, CA 920241124176938
  6. Timothy Williamson, M.D.Ojai, CA 930231023168721
  7. Jason Willis-Shore, MDVallejo, CA 945891033297858
  8. Charlotte Wills, MDOakland, CA 946021952370694
  9. Mark Wills, MDSonoma, CA 954761063525715
  10. Aundrea Wilson, M.D.Oakland, CA 946061770506529
  11. Brent Wilson, MDFresno, CA 937201184647091
  12. Brett Wilson, M.D.Santa Barbara, CA 931051780601252
  13. Casey Wilson, M.D., M.P.H.Escondido, CA 920291487048815
  14. Cory Wilson, MDCastaic, CA 913841689648966
  15. Erika Wilson, M.DPorterville, CA 932571457445678
  16. Jack Wilson, M.D.San Diego, CA 921201033125299
  17. Jake WilsonLancaster, CA 935341700203023
  18. James Wilson, M.DRedlands, CA 923731588770242
  19. Keith WilsonFresno, CA 937011255776258
  20. Millicent Wilson, MDEast Los Angeles, CA 900221558879296
  21. Neil Wilson, M.D.Highland, CA 923461568401131
  22. Samuel Wilson, MDHesperia, CA 923451912948019
  23. Sean Wilson, MDAnaheim, CA 928061528320231
  24. Sone-Seere Wilson, MDWest Covina, CA 917901194772525
  25. Tyler Wilson, MDFresno, CA 937011407464373
  26. William Wilson, MDClovis, CA 936111285686030
  27. Zachary Wilson, MDLos Angeles, CA 900341033537634
  28. Ryan Windemuth, M.DMoreno Valley, CA 925551902911886
  29. Emily Wing, MDVacaville, CA 956881073985107
  30. Allan Winger, MDOrange, CA 928681841879889
  31. Maia Winkel, MDStanford, CA 943051114554888
  32. Garret WinklerSan Diego, CA 921031336502095
  33. James Winn, D.O.Chino, CA 917101336183730
  34. Bret WinnersLa Mesa, CA 919421083293443
  35. Lori Winston, M.D.Visalia, CA 932911083615082
  36. Garen Wintemute, MD, MPHSacramento, CA 958171316928997
  37. Leigha WintersSacramento, CA 958171396108536
  38. Brian Wippermann, MDRoseville, CA 956611356456776
  39. Damon Wirth, M.DRoseville, CA 956611245258185
  40. Alexander Wisbeck, MDFrench Camp, CA 952311174189815
  41. Frederick Wise, M.D.Santa Maria, CA 934541689833550
  42. Colette Wiseman, M.DSanta Monica, CA 904041104027150
  43. Andrea Witherell, MDLoma Linda, CA 923541356083471
  44. Joseph Witkin, MDLa Mesa, CA 919421144258963
  45. Maciej Witkos, MDSan Diego, CA 921031407086077
  46. Andrew Wittenberg, MDLong Beach, CA 908061053320291
  47. William Wittlake, M.D.Loma Linda, CA 923541275648990
  48. Micah Wittler, D.O.San Bernardino, CA 924041346411329
  49. Peter Witucki, MDLa Jolla, CA 920371548205537
  50. Madeline Wohlfeil, MDLoma Linda, CA 923541649858358

Source: CMS NPPES, primary taxonomy 207P00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 28 of 51 per resident

  1. Montana21
  2. Arizona20
  3. Kentucky20
  4. California20
  5. Virginia20
  6. North Carolina19
  7. 50 states and D.C.21

Source: CMS NPPES, primary taxonomy 207P00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

80.9% of these records appear in a Medicare file, against 81.5% 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. California80.9%
  2. United States81.5%

Emergency Medicine Physician records in California, measured

  • In a Medicare file6,272 of 7,751 · 80.9% here, 81.5% nationally
  • In the CMS Doctors and Clinicians file4,561 · 58.8% here, 58.7% nationally
  • Not updated in five years or more4,610 · 59.5% here, 54.8% nationally
  • Median graduation year2011 · the 4,560 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207P00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

7,751 NPPES records list emergency medicine physician (207P00000X) as their primary taxonomy with a practice address in California: 20 per 100,000 residents against 21 nationally (50 states and D.C.). Los Angeles has 632 of them (8%).

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 York5,025
  2. Texas4,885
  3. Florida4,034
  4. Pennsylvania3,911

States with a similar rate per 100,000

  1. Virginia19.8
  2. Kentucky20.0
  3. Arizona20.1
  4. North Carolina19.3

The largest states

  1. New York5,025
  2. Texas4,885
  3. Florida4,034
  4. Pennsylvania3,911
  5. Illinois3,291

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.