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 152 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. Peter WroeOakland, CA 946021780001156
  2. Andrea Wu, MDManhattan Beach, CA 902661295993707
  3. Ariel Wu, MDTorrance, CA 905051174100143
  4. Clayton WuSacramento, CA 958171871928341
  5. Evan Wu, M.D.Marysville, CA 959011417311010
  6. Ivan Wu, MDBellflower, CA 907061235206137
  7. John Wu, M.D.Westminster, CA 926831295804201
  8. Kenny Wu, M.D.Loma Linda, CA 923541336408707
  9. Lisa Wu, M.DSan Francisco, CA 941171114954385
  10. Michael Wu, MDLong Beach, CA 908061750523478
  11. Natalie Wu, M.D.San Jose, CA 951281962768317
  12. Scott Wu, MDPalo Alto, CA 943041457963126
  13. Thomas Wu, M.D.Panorama City, CA 914021417011164
  14. Tina Wu, M.D., M.B.A.Los Angeles, CA 900731356667117
  15. Tina Wu, MDManhattan Beach, CA 902661568663136
  16. Victor Wu, M.DSan Jose, CA 951161962449660
  17. William Wu, D.O.Sonora, CA 953701558567826
  18. Elizabeth Wulfert, M.D.Escondido, CA 920251720095847
  19. Rebecca WursterSanta Cruz, CA 950651932341575
  20. Angela Xavier, MDSan Diego, CA 921031295971620
  21. Christopher Xavier, M.D.San Diego, CA 921201720271307
  22. Meng Qiao XiPalo Alto, CA 943041780117341
  23. Karen Xiao, MDPasadena, CA 911051063153088
  24. Marian Xu, M.D.San Diego, CA 921031477996148
  25. Keith Yablonicky, M.D.Los Angeles, CA 900331861487969
  26. Kabir Yadav, MDCM, MS, MSHSTorrance, CA 905021386749455
  27. Sherry Yafai, M.D.Santa Monica, CA 904041366628471
  28. Jonathan Yaghoubian, DOLos Angeles, CA 900951609361500
  29. Ami YamamotoBerkeley, CA 947051447511308
  30. Peter Yamashita, MDBellflower, CA 907061023167392
  31. Cyrus YaminOakland, CA 946121205128618
  32. Alex Yang, MDSan Francisco, CA 941431538749353
  33. Elaine YangOakland, CA 946021710349485
  34. Laurel Yang, M.D.San Jose, CA 951191386054047
  35. Lisa Yang, MDSan Jose, CA 951191922266451
  36. Maximillian Yang, MDLos Angeles, CA 900341174690192
  37. Mike Yang, MDWoodland Hills, CA 913671609047489
  38. Nelson Yang, MDBakersfield, CA 933011982853206
  39. Roger Yang, M.D.Pasadena, CA 911051295849883
  40. Roger Yang, MDSan Jose, CA 951281487755492
  41. Samuel Yang, MDStanford, CA 943051386672905
  42. Yoyoung YangStockton, CA 952041750844817
  43. Justin Yanuck, M.D.Downey, CA 902421235592478
  44. Christepher Yao, MD, MPHOrange, CA 928681649237637
  45. Dong Han Yao, MDStanford, CA 943051639639784
  46. Steven Yao, MDSanta Barbara, CA 931051396789012
  47. Anna YapLos Angeles, CA 900951265935092
  48. James Yarovoy, M.D.San Jose, CA 951161265966600
  49. Michael Yashar, M.D.Los Angeles, CA 900951356637839
  50. John Yashou, D.O.Apple Valley, CA 923071841459583

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.