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 131 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. Chase Socha, M.D., M.P.H.Chino, CA 917101528415445
  2. Susan Socha, DOAnaheim, CA 928011962458067
  3. Homayoun SohrabiReedley, CA 936541194779751
  4. Jennifer Soifer, M.D.San Diego, CA 921201992970321
  5. Kimberly Sokol, M.D.Orange, CA 928681497160840
  6. Peter Sokolove, M.D.Sacramento, CA 958171134100993
  7. Linda Soldavini, MDOrange, CA 928681477738623
  8. Benjamin Solder, M.D., M.ED.San Francisco, CA 941431558010009
  9. Stephen Soldo, MDFresno, CA 937221780620708
  10. Autumn Solis, FNP-BCThousand Oaks, CA 913601205449832
  11. Michael Solis, MDVisalia, CA 932911265475297
  12. Gary Sollars, M.D. F.A.C.E.P.Sun City, CA 853511164472106
  13. Daniel Solomin, D.O.West Covina, CA 917901124394465
  14. Chloe Solomon, MD, MSOakland, CA 946111346805744
  15. David Solomon, MDLos Angeles, CA 900151750376505
  16. Peter SolomonSan Diego, CA 921031821483926
  17. Thomas Solomon, M.D.Torrance, CA 905021285950634
  18. Veronica Solorio, MDWest Hollywood, CA 900481932581980
  19. Stacie Solt, M.D.San Francisco, CA 941031518194562
  20. Sherwin Soltani, M.D.Santa Clara, CA 950511821445263
  21. Yasamin Soltanianzadeh, MDWest Hollywood, CA 900481952837221
  22. Susan Sommer, MDVallejo, CA 945891760554513
  23. Shannon Sommers, M.D.Los Angeles, CA 900341659551299
  24. William Sommers, D.O.Weaverville, CA 960931417273202
  25. Jennifer Somsouk, M.D.Palo Alto, CA 943041821163817
  26. Erwin Song, MDFullerton, CA 928351154359024
  27. Hank Song, MDLos Angeles, CA 900331770072746
  28. Mark Song, MDFullerton, CA 928351497865281
  29. Peter Song, M.D.Newport Beach, CA 926631700271632
  30. Stephanie SongeyVisalia, CA 932911003311606
  31. Alan Sonne, M.DWestminster, CA 926831508972787
  32. Lisa SonnenblickRoseville, CA 956611992190250
  33. Daniel Sonnier, MDAntioch, CA 945091528132131
  34. Sabrina Sood, MDFremont, CA 945381548412745
  35. David Soohoo, M.D.Walnut Creek, CA 945981174547046
  36. Prathap Sooriyakumaran, MDSan Francisco, CA 941101255607511
  37. Rachelle Soper, M.DModesto, CA 953501942255047
  38. Camie Sorensen, MDFresno, CA 937201225182645
  39. Vernon Sorenson, M.D.Bakersfield, CA 933011548365208
  40. Alan Sorkey, MDOakland, CA 946061447252887
  41. Steven Sornsin, MDOakland, CA 946091821056185
  42. Arash SoroudiSan Diego, CA 921031538368246
  43. Arthur Sorrell, MDSan Francisco, CA 941141073661005
  44. Michael Sotak, M.D.Elk Grove, CA 957581932107646
  45. Freddy Sotelo, M.D.Long Beach, CA 908061649479577
  46. Georgia Sotiropoulos, M.D.Los Angeles, CA 900481114900255
  47. Cecily Sotomayor, M.D.Redwood City, CA 940631730543471
  48. Nagi Sous, MDLos Angeles, CA 900271740349406
  49. Colton Southall, MDRancho Mirage, CA 922701427631266
  50. Luiz Souza-Filho, M.D.Los Angeles, CA 900241548622749

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.