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 6 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. Elisa Aponte, M.D.Los Angeles, CA 900171518134634
  2. Gordon Appelbaum, M.D.Oceanside, CA 920561245200674
  3. Ted Apstein, M.D.San Leandro, CA 945771447647664
  4. Jannelle AquinoColton, CA 923241184078362
  5. Nezhat Arabi, MDSacramento, CA 958251205986007
  6. Cameron AraghiTorrance, CA 905021396109849
  7. Jodi Aragona, MDGlendale, CA 912041336196583
  8. Dwight Arakaki, M.DLaguna Hills, CA 926531376653360
  9. Joaquin ArambulaSelma, CA 936621871658641
  10. Yonathan Ararso, MD,MSSan Francisco, CA 941431558941427
  11. Michael Aratow, M.D.San Mateo, CA 944031891804043
  12. Varsha Aravindabose, DOLos Angeles, CA 900331972122828
  13. Benjamin Archambeau, D.O.Colton, CA 923241831583442
  14. Benjamin Archer, M.D.San Diego, CA 921341790028561
  15. Solana Archuleta, MDLa Jolla, CA 920371295315729
  16. Christa Arefieva, MDLa Mesa, CA 919421033776075
  17. Robert Argand, M.D.Burlingame, CA 940101811921224
  18. Anthony Arguija, DOColton, CA 923241124231139
  19. Juan Arhancet, D.OVisalia, CA 932911396132569
  20. Cesar Aristeiguieta, MDSacramento, CA 958171255386256
  21. Mary Armbruster, DOPalm Springs, CA 922621083300958
  22. Patil Armenian, MDFresno, CA 937211073777686
  23. Erick Armijo, M.D.Los Angeles, CA 900171962840322
  24. Theodore Armstrong, M.D.Santa Maria, CA 934551174765952
  25. William Armstrong, MDLos Angeles, CA 900151245960293
  26. Brecken Armstrong-Kelsey, M.D.Torrance, CA 905021699973578
  27. Justin Arndt, M.D.Long Beach, CA 908061851737050
  28. Cosby Arnold, MDSacramento, CA 958171538514245
  29. Eric Arnold, MDLos Angeles, CA 900331801417043
  30. Jeffrey Arnold, M.D.Scotts Valley, CA 950661316957806
  31. Ryan Arnold, M.D.Santa Barbara, CA 931101033314075
  32. Krithika Arora, MDLos Angeles, CA 900241922701218
  33. Sanjay AroraLos Angeles, CA 900331730234162
  34. Kendra Arriaga-CastellanosTorrance, CA 905021255197752
  35. Gilbert Arroyo, MDSacramento, CA 958251528146206
  36. Daniel Artiga, MDOrange, CA 928681801537964
  37. Brian Artman, DOBakersfield, CA 933011881742898
  38. Thomas Artzner, MDGridley, CA 959481396779732
  39. Arezou Aryai, DOColton, CA 923241508032442
  40. Brian Asalone, MDPanorama City, CA 914021780743443
  41. Christopher Asandra, M.D.Beverly Hills, CA 902111841229010
  42. Manish Asaravala, M.D.Santa Clara, CA 950511174716344
  43. Adam Ash, M.D.Los Angeles, CA 900331477717338
  44. Nicholas Ashenburg, MDStanford, CA 943051104238336
  45. Sameed Ashfaq, DORoseville, CA 956611245791276
  46. Henry Ashista, MD, MPHOakland, CA 946021215686993
  47. Mary Ashkenaze, M.D.Laguna Beach, CA 926511912011453
  48. Pierre Assaf, MDFontana, CA 923351417969973
  49. Samer Assaf, M.D.Orange, CA 928681659785970
  50. Frishta Ataie, MDCovina, CA 917231487940102

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.