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 155 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. Larisa Zeltser, D.O.Santa Ana, CA 927051780622720
  2. Jennifer Zernec, D.O.Ukiah, CA 954821285981027
  3. Shane ZeshonskiTorrance, CA 905021578190864
  4. Christel Zeumer, MDLong Beach, CA 908061497701148
  5. Jennifer Zhan, M.D.Los Angeles, CA 900151669890117
  6. Clarice Zhang, D.O.San Diego, CA 921231134538929
  7. Mark Zhang, MDLos Angeles, CA 900171831620913
  8. Yi Zhang, M.D.Rancho Cucamonga, CA 917371164466322
  9. Lisa Zhao, MDSylmar, CA 913421578767067
  10. Ray Zhao, D.O.San Dimas, CA 917731558595967
  11. Amy Zheng, M.D.San Diego, CA 921611669443511
  12. Albert Zhou, MDBakersfield, CA 933011265991103
  13. George ZibilichArcata, CA 955211205898921
  14. Joseph Zibulewsky, MDWest Hills, CA 913071679519532
  15. John Ziebro, MDEmeryville, CA 946081952924540
  16. Carsten Zieger, D.O.Santa Maria, CA 934551215971312
  17. Daniel Ziegler, M.D.Eureka, CA 955031346366564
  18. Jeffery Zielinski, MDLos Angeles, CA 900321326273244
  19. Steve Zielinski, D.O.Lakewood, CA 907121063544849
  20. Jason Ziemba, M.D.Valencia, CA 913551598790545
  21. Paul Ziesmer, MDOrange, CA 928681649202714
  22. Hashem Zikry, MDLos Angeles, CA 900951205397528
  23. Robert Zimmerman, MDSouth San Francisco, CA 940801275612301
  24. Thomas Zimmerman, M.D.Grass Valley, CA 959451295734127
  25. Christian Zimmermann, MDLos Alamitos, CA 907201467484790
  26. Gilbert Zini, M.D.Rancho Cucamonga, CA 917301558375303
  27. Felipe Zinkewich, MDLoma Linda, CA 923541568026789
  28. David Zinn, MDSacramento, CA 958251467612184
  29. John Ziomek, MDBakersfield, CA 933011528095551
  30. Scott Zittel, DORedding, CA 960011881707545
  31. Tiglath ZiyehLos Angeles, CA 900241922663426
  32. Alexander Zlidenny, M.DLaguna Hills, CA 926531962448340
  33. Bradley Zlotnick, M.D.San Diego, CA 921231124095153
  34. Steven Zlotowski, MDChico, CA 959261265442651
  35. Marissa Zobrist, M.D.Los Angeles, CA 900331033407382
  36. David Zohrabian, M.D.Van Nuys, CA 914051083865810
  37. Richard Zoraster, MDWhittier, CA 906021316974074
  38. Juan Zorrilla, M.D.Oceanside, CA 920561861487506
  39. Nadia Zuabi, MDOrange, CA 928681639639933
  40. Saima Zubair, M.D.Alhambra, CA 918011750594230
  41. Sania Zubair, MDBurbank, CA 915051306064696
  42. Mark Zukunft, M.D.San Jose, CA 951191437563855
  43. Marisa Zuluaga, MDOakland, CA 946021033415351
  44. Alexis Zumbrunn, MDVan Nuys, CA 914051629697263
  45. Nathan Zundel, M.D.Oceanside, CA 920551174784052
  46. Jessica Zuraw, M.D.San Mateo, CA 944011255572780
  47. Raymond Zurcher, MDBakersfield, CA 933011972530145
  48. Sarah Zwehl-Burke, MDSacramento, CA 958231588618995
  49. Donald Zweig, MDModesto, CA 953551942317706
  50. Dean Zweng, MDScotts Valley, CA 950661669442794

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.