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 36 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. Geoffrey Donoghue, MDBaldwin Park, CA 917061720261696
  2. John Donohoe, M.D.Highland, CA 923461902837651
  3. Robert Donovan, M.DModesto, CA 953501790730869
  4. David Donson, MDHarbor City, CA 907101780779041
  5. Jennifer Donson, M.D.Harbor City, CA 907101033174784
  6. Alex Doo, M.D.Long Beach, CA 908131144602004
  7. David Doostan, MDOakland, CA 946111174564819
  8. Alyrene Dorey, M.D.Sacramento, CA 958171487064929
  9. Armand Dorian, MDGlendale, CA 912081215961966
  10. Kyle DornhoferOrange, CA 928681942836812
  11. Peter Dornhofer, M.D.San Luis Obispo, CA 934011811944010
  12. Joshua Doros, MDSan Diego, CA 921201558756395
  13. Richard Dorosh, M.D.Pomona, CA 917671902928690
  14. Michael Dorso, MDPlacerville, CA 956671588704498
  15. Edgardo Dos SantosSan Diego, CA 921031558757880
  16. Seema Doshi, M.D.Palos Verdes Estates, CA 902741053638171
  17. Deborah Dossick, M.D.Sacramento, CA 958251083904221
  18. Adam Dougherty, MPHSacramento, CA 958171568720886
  19. Colin Dougherty, MDSan Diego, CA 921201992857379
  20. Constance Dougherty, MDSanta Rosa, CA 954091184173239
  21. Amy Douglas, M.D.Pomona, CA 917671104142454
  22. Danielle Douglas, M.D.La Mesa, CA 919421336358977
  23. Kirsten Douglass, MDSan Francisco, CA 941431902380314
  24. Rachelle Douglass, MDLa Palma, CA 906231134156649
  25. Penny Douthwaite, MDInglewood, CA 903011437169695
  26. Kalie Dove-Maguire, MDSan Francisco, CA 941431912273707
  27. Russell Dowell, DOSan Francisco, CA 945461730703604
  28. Janet Dowis, M.D.Fresno, CA 937201811944028
  29. Sean Dowling, MDStanford, CA 943051730768953
  30. William Downes, MDLoma Linda, CA 923541912494808
  31. Elizabeth Downing, MDSanta Barbara, CA 931051568415537
  32. Richard Doyan, M.D.Emeryville, CA 946081992740765
  33. Brian Doyle, M.D.Placentia, CA 928701710952346
  34. Julie Doyle, MDRancho Santa Fe, CA 920671720346273
  35. Timothy Drazek, M.D.Walnut Creek, CA 945981336155795
  36. Charles Drehsen, M.D.Moorpark, CA 930211609008960
  37. Lindsay Dreizler, MDLos Angeles, CA 900331326629809
  38. Carrieann Drenten, M.D.Sacramento, CA 958161730477811
  39. Brendon Drew, D.O.San Diego, CA 921341326136151
  40. Daniel Drewry, MDEmeryville, CA 946081427678325
  41. Remigiusz Drozd, D.O.Santa Barbara, CA 931031588808901
  42. Richard DruckerSanta Cruz, CA 950621083684229
  43. Patricia Drum-Lal, PACSanta Monica, CA 904041639136674
  44. Brian Drury, MDFresno, CA 937211467036665
  45. Dai Du, M.D.Banning, CA 922201962440750
  46. Youyou Duanmu, MD, MPHStanford, CA 943051528403789
  47. Robert Duchynski, MDSanta Rosa, CA 954031538243522
  48. Radu Dudas, M.D.Moreno Valley, CA 925551629318241
  49. Donald Dudley, M.D.Sonora, CA 953701497727952
  50. Kay Duefrene, M.D.Eureka, CA 955011669434452

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.