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 153 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. Mari Yasunaga, MDLoma Linda, CA 923541245617075
  2. James Yates, M.D.Long Beach, CA 908221417995796
  3. Ryan Yavorsky, DOMarina Del Rey, CA 902921720549850
  4. Fei Lu Ye, M.DFrench Camp, CA 952311477993764
  5. Tianjiang Ye, M.D.Rancho Mirage, CA 922701912346602
  6. Wesley Yeackle, M.D.Oceanside, CA 920561053379677
  7. Jacqueline Yeager, DOVisalia, CA 932911306194675
  8. Poornima Yechoor, M.D.Oakland, CA 946021205274974
  9. Allison YeeColton, CA 923241134626120
  10. John Yee, M.D.Fountain Valley, CA 927081699788265
  11. Kandra Yee, MDSouth Lake Tahoe, CA 961501316137268
  12. Lisa YeeFontana, CA 923351215310321
  13. Bryan Yeh, M.D.Anaheim, CA 928011689105793
  14. Clement Yeh, MDSan Francisco, CA 941101497797831
  15. Marc Yellin, M.D.Santa Cruz, CA 950651952446973
  16. Rachelle Yellin, DOVisalia, CA 932911801356712
  17. Denis Yen, M.D.Pasadena, CA 911051568576981
  18. May Yen, M.D.Glendale, CA 912041326227232
  19. Stephanie Yen, MDSan Diego, CA 921011699154237
  20. Onur Yenigun, MDLos Angeles, CA 900151073046686
  21. Kara Yeung, MDStanford, CA 943051891255220
  22. Timothy YeungLoma Linda, CA 923541629773700
  23. Thomas Yi, D.O.Camp Humphreys, CA 962711962845735
  24. Maame Yaa Yiadom, MD, MPH, MSCIStanford, CA 943051750572871
  25. Lu Yin, M.D.Inglewood, CA 903011497073605
  26. Julia Yip, DOWalnut Creek, CA 945961326628009
  27. Kathleen Yip, MDLos Angeles, CA 900731558743518
  28. Solomon Yochanan, MDHemet, CA 925431386685873
  29. Robert Yoho, M.D.Pasadena, CA 911051699792127
  30. Carmela Yomtoubian, M.D.Los Angeles, CA 900251063655355
  31. Peter Yoo, MDLos Angeles, CA 900271104993070
  32. Christine Yoon, M.D.Torrance, CA 905021316250624
  33. Joseph YoonSacramento, CA 958171649799016
  34. Roxana Yoonessi-Martin, M.D.Panorama City, CA 914021194837161
  35. Mackensie YoreLos Angeles, CA 900951164958211
  36. Douglas Yoshida, MDPleasanton, CA 945881205817368
  37. Howard Yoshioka, MDPleasanton, CA 945881992796221
  38. Teri Yoshitake, M.D.Claremont, CA 917111205847555
  39. Alan You, MDSan Diego, CA 921031225425697
  40. Corey YoungLos Angeles, CA 900951417606211
  41. David YoungSan Dimas, CA 917731760595490
  42. Gregory Young, MDOrange, CA 928681750313821
  43. Helen Young, MDEncinitas, CA 920241215429253
  44. Janet Young, M.D.Antioch, CA 945091275626756
  45. Jocelyn Young, MDOceanside, CA 920551750902540
  46. Martin Young, M.D., M.S.Fresno, CA 937201912649906
  47. Megann Young, MDFresno, CA 937211043535958
  48. Michael Young, DOLa Jolla, CA 920371174603732
  49. Paul Young, MDRedding, CA 960011932139540
  50. Sharday Young, MDHuntington Park, CA 902551861067654

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.