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 26 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. Estak Choudhury, MDLos Angeles, CA 900271790729846
  2. Evelyn Chow, M.D.Hayward, CA 945451467611871
  3. Jessica ChowSanta Monica, CA 904041669835773
  4. Susan Chow, MDSanta Clara, CA 950511700084084
  5. Tiffany Chow, MDRancho Mirage, CA 922701922676956
  6. Tony Chow, M.D.Loma Linda, CA 923541154340578
  7. Noumi Chowdhury, MDVallejo, CA 945891316680440
  8. David Christensen, M.D.Pismo Beach, CA 934491932145620
  9. John Christensen, M.D.Santa Cruz, CA 950651679609507
  10. Matthew Christensen, MDSan Diego, CA 921341730772567
  11. Paul Christensen, M.D.San Luis Obispo, CA 934201083658777
  12. Susan Christenson, MDSan Diego, CA 921201174671119
  13. Sarah Christian-Kopp, M.D.Loma Linda, CA 923501215261607
  14. William Christiansen, M.D.San Diego, CA 921211831107952
  15. David Christy, M.D.Newport Beach, CA 926631619930492
  16. Andrew Chu, MDStanford, CA 943051831688183
  17. Betty Chu, MDFremont, CA 945381578641015
  18. Caleb Chu, MDColton, CA 923241881336287
  19. Eileen Chu, MDSacramento, CA 958161306166798
  20. Isaac Chu, D.O.Santa Monica, CA 904041295963254
  21. John Chu, MDLaguna Niguel, CA 926771760432827
  22. Kevin Chu, DOPasadena, CA 911051578829438
  23. Peter Chu, MDPalm Springs, CA 922621396788014
  24. Amity Chu O'Connor, M.D.Sacramento, CA 958231770994402
  25. Evan ChuaWalnut Creek, CA 945961437719358
  26. Samnuel Chua, M.D.Moreno Valley, CA 925551699880724
  27. Amy ChuangSan Mateo, CA 944031538746995
  28. Ian Chuang, M.D.Vallejo, CA 945891386650521
  29. Kathy Chuang, MDRiverside, CA 925051801024450
  30. Kenneth Chuang, M.D.Long Beach, CA 908061205998929
  31. Carl Chudnofsky, MDLos Angeles, CA 900171811958556
  32. Edward Chung, MDMarina Del Rey, CA 902921114954989
  33. John Chung, MDBaldwin Park, CA 917061073661013
  34. Karen Chung, MDFresno, CA 937211912657222
  35. Nancy Chung, MDCorona, CA 928821275577447
  36. Allan Churukian, M.D.Encinitas, CA 920241639118789
  37. Ludwig Cibelli, M.DBanning, CA 922201437198025
  38. Patrick Cichon, MDHuntington Beach, CA 926471144259854
  39. Augusto Cigliano, MDLoma Linda, CA 923541619140712
  40. Jaime Cintado, MDSan Francisco, CA 941151093893646
  41. Jason Cinti, DOPalm Springs, CA 922621548903693
  42. Forrest Cioppa, MDMoraga, CA 945561386900363
  43. Victor Cisneros, M.D.Orange, CA 928681942732409
  44. Courtney Clamp, MDSanta Rosa, CA 954031700194917
  45. Chad Clark, M.D.Riverside, CA 925031023052545
  46. Clelia Clark, MDSanta Rosa, CA 954051295294163
  47. Cynthia Clark, MDSan Rafael, CA 949031144219767
  48. David Clark, M.D.Whittier, CA 906021104289495
  49. David Clark, M.D.San Diego, CA 921211225046196
  50. Delbert Clark, D.O.San Diego, CA 921231194799593

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.