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 128 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. Jessica Shuen, M.D.Hemet, CA 925431053766600
  2. Julia Shuleshko, D.OGilroy, CA 950201588602858
  3. Charles Shull, M.D.Ridgecrest, CA 935551669418224
  4. Natalie Shum, MDLos Alamitos, CA 907201114936358
  5. Maureen Shuma, MDSacramento, CA 958171053848259
  6. George Shumaik, MDLa Jolla, CA 920371982645388
  7. William Shyy, M.D.Santa Monica, CA 904041013202274
  8. Elizabeth Siacunco, MDRancho Mirage, CA 922701104355064
  9. Avi SianiTorrance, CA 905021114424470
  10. Eileen Sicangco, MDTracy, CA 953761780876193
  11. Saud SiddiquiBanning, CA 922201568849503
  12. Angadpreet Sidhu, MEDICAL STUDENTTracy, CA 953761396246229
  13. Kevin Sidhu, DOJackson, CA 956421093165953
  14. Manavjeet SidhuFresno, CA 937211861849101
  15. Arturo Sidransky, M.D.Camarillo, CA 930101710924543
  16. Rodney Sidransky, MDSan Diego, CA 921111417212739
  17. Shon Sidransky, M.D.Oxnard, CA 930301285646448
  18. Eric Siedenburg, M.DLaguna Hills, CA 926531629006705
  19. John Siefert, M.D.San Diego, CA 921341124014162
  20. Glenn Siegfried, M.D.Fortuna, CA 955401699737304
  21. Sarah Sifuentez, M.D.Fresno, CA 937221952677155
  22. Blake SiglockSacramento, CA 958171083032031
  23. Karin Siguenza, MDWhittier, CA 906021457989394
  24. Charles Silas, MDFontana, CA 923351245431121
  25. Humberto Silva, M.D.Riverside, CA 925031134158520
  26. Ivan Silva, DOMoreno Valley, CA 925551083302723
  27. Drew Silver, MDSan Diego, CA 921201467015404
  28. Matthew SilverSan Diego, CA 921201386799815
  29. Eric Silverman, M.D.San Francisco, CA 941431477896488
  30. Phillip Silverstein, MDLos Banos, CA 936351699729996
  31. Steven Silverstein, M.D.Santa Cruz, CA 950651356490676
  32. Nathan Silvestri, M.D.Loma Linda, CA 923541124447321
  33. Christianna Sim, MDSanta Monica, CA 904041396235743
  34. Paul Simcoe, MDSalinas, CA 939061619932845
  35. Peter Simic, M.D.Burbank, CA 915051366498552
  36. Andrew Simmons, MDLoma Linda, CA 923541013395011
  37. Charles Simmons, M.D.San Diego, CA 921031801869839
  38. Gregory Simmons, M.D.Santa Maria, CA 934541205154887
  39. Todd Simmons, M.D.Escondido, CA 920291922248657
  40. Harry Simms, MDSebastopol, CA 954721447388343
  41. Sonia Simms, MDOrange, CA 928681619922069
  42. Adria Simon, M.D.Castro Valley, CA 945461134571748
  43. Barry Simon, MDOakland, CA 946021164413456
  44. Mark Simon, MDSan Diego, CA 921031649776584
  45. Sharis Simonian, SHARIS SIMONIAN M.D.Los Angeles, CA 900481538485313
  46. Patricia Simpson, MDSan Francisco, CA 941151881685105
  47. Jessica Sims, M.D.West Hills, CA 913071720034507
  48. Leroy Sims, M.D., M.SC.Santa Monica, CA 904041225236904
  49. Gregory Simsarian, M.DLaguna Hills, CA 926531144250713
  50. Arnold Sin, M.DColton, CA 923241649212408

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.