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 35 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. Giancarlo Dimassa, MDPasadena, CA 911061255370797
  2. Priscilla DingEmeryville, CA 946081467955260
  3. Joseph Dinglasan, M.D.Mission Viejo, CA 926911457515272
  4. Perry Dinh, DOWestminster, CA 926831588160055
  5. VI Dinh, M.D.Moreno Valley, CA 925551699919647
  6. Christine DinuzzoLos Angeles, CA 900331952456741
  7. Nnaemeka Diribe, DOJoshua Tree, CA 922521053767160
  8. Michael Disano, MDChico, CA 959261609963057
  9. Yalina Disla, MD, MPHWalnut Creek, CA 945961225458227
  10. Casey Distaso, MDWest Hollywood, CA 900481003311747
  11. Lisa Ditomaso, DOYreka, CA 960971750843397
  12. Brittany DixonOakland, CA 946021992191803
  13. Robert Dixon, M.D.Santa Clara, CA 950511679006274
  14. Samuel DixonFrench Camp, CA 952311518996974
  15. William Dixon, MDStanford, CA 943051861889065
  16. Caesar Djavaherian, M.D.Fairfield, CA 945331790760551
  17. Scott Dlugos, MDEl Centro, CA 922431790748234
  18. Chanh Do, D.O.Santa Rosa, CA 954031902950934
  19. Christine Do, DOVisalia, CA 932911821748328
  20. Nhan Do, MDBakersfield, CA 933061730548231
  21. Thao Do, D.O.Placentia, CA 928701073861712
  22. Tin Do, M.D.San Francisco, CA 941171154419034
  23. Amy Do-Nguyen, MDBishop, CA 935141639733314
  24. Stephen Docherty, D.O.San Gabriel, CA 917761912954173
  25. Taylor DocterWest Hills, CA 913071396364782
  26. Tillman Dodd, M.D.San Luis Obispo, CA 934051497738140
  27. William DodgeLaguna Beach, CA 926511588640312
  28. Haley Dodson, MDSan Diego, CA 921341114486438
  29. Katie Doering, MDOrange, CA 928681528488970
  30. Tyler Dohm, MDSan Diego, CA 921031043950264
  31. Paul Dohrenwend, M.D.Encinitas, CA 920241023100039
  32. Ian Doig, MDVacaville, CA 956881033850334
  33. Laura Dolkas, M.D.San Diego, CA 921231639360746
  34. Ryan Dollbaum, M.D.Vallejo, CA 945891467983296
  35. Ellen Dolson, MDSan Francisco, CA 941151821162439
  36. Jessica Dominguez De La Rosa, MD, MPHFresno, CA 937011083047948
  37. Francis Domzalski, MDRancho Mirage, CA 922701225059223
  38. Kevin Donaghy, M.D.Folsom, CA 956301902014731
  39. Allison DonahueStanford, CA 943051558011239
  40. Breahn Donaldson, MDTarzana, CA 913561104486208
  41. Ross Donaldson, MD, MPHVenice, CA 902911447337654
  42. Cathy DongRiverside, CA 925011053870386
  43. Christopher Dong, MDBakersfield, CA 933051194773101
  44. Jimmy Donkor, MDFresno, CA 937011245531524
  45. Kwame Donkor, MDCoalinga, CA 932101578776886
  46. Eric Donn, DO, MHAVisalia, CA 932911851851091
  47. Lauren Donnelly, D.O.Encinitas, CA 920241922392901
  48. Matthew Donnelly, M.D.Marysville, CA 959011679773311
  49. Sandra Donnelly, MDWhittier, CA 906051811938509
  50. David Donner, MDVentura, CA 930031760041321

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.