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 22 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. Leelamma Chacko, MDHarbor City, CA 907101881761880
  2. Quetzalsol Chacon-Lopez, M.D., M.P.H.Fresno, CA 937011295979425
  3. Krishan Chaddha, DORancho Mirage, CA 922701851829212
  4. Won Ki Chae, MDLos Angeles, CA 900171376789701
  5. Eric Chai, DOMoreno Valley, CA 925551740977271
  6. Bharath Chakravarthy, MDOrange, CA 928681144259839
  7. Brandon Chalfin, M.D.Fresno, CA 937211124318316
  8. Lauren Chalwell, M.D.San Francisco, CA 941101023307576
  9. Scott Chamberlain, M.D.Walnut Creek, CA 945961356395453
  10. Mac Chamberlin, MDOakland, CA 946021881085439
  11. Winifred Chambers, M.D.San Juan Capistrano, CA 926751376736629
  12. Addison ChanModesto, CA 953551568791994
  13. Benjamin Chan, MDVan Nuys, CA 914051114489424
  14. Bill Chan, MDSan Diego, CA 921031255073706
  15. Carmie Chan, MDRedwood City, CA 940631962564526
  16. Chuck Chan, DOOrange, CA 928681841877222
  17. Connie Chan, D.O.Monterey Park, CA 917541639105745
  18. Dennis Chan, M.D.San Diego, CA 921211366410912
  19. Eugene Chan, M.D.Riverside, CA 925011952414674
  20. Jason Chan, PAPorterville, CA 932571790337145
  21. Jeff Chan, M.DSan Jose, CA 951161184679433
  22. Jonathan ChanSacramento, CA 958171578126975
  23. Joseph Chan, M.D.Los Angeles, CA 900241477847994
  24. Lisa Chan, MDVallejo, CA 945891366062325
  25. Phillip Chan, M.D.Modesto, CA 953501043576531
  26. Sripha Chan, MDLong Beach, CA 908131821298464
  27. Theodore Chan, MDLa Jolla, CA 920371477596856
  28. Virginia Chan, MDGlendale, CA 912061457939761
  29. Winnie Chan, MDCastro Valley, CA 945461538521281
  30. Therese Chan-McNabb, M.D.Atascadero, CA 934221477597128
  31. Pushkar Chand, M.D.Fontana, CA 923351013074582
  32. Merrill Chandler, MDCastro Valley, CA 945461508847237
  33. Van Anh Chandler, MEDICAL DOCTOROxnard, CA 930301154312114
  34. Paarul Chandra, M.D.Long Beach, CA 908131710299060
  35. Ritik Chandra, MDSan Francisco, CA 941101700838737
  36. Carrie Chandwani, M.D.Orange, CA 928681568675064
  37. Deepak Chandwani, M.D.Loma Linda, CA 923541144264177
  38. Alice Chang, DOOrange, CA 928681760064216
  39. Allen Chang, MDTracy, CA 953761588976567
  40. Brennan ChangRiverside, CA 925011306473343
  41. Brian ChangSan Francisco, CA 941431164840013
  42. Christine Chang, MDOxnard, CA 930301003132671
  43. Christopher Chang, MDFresno, CA 937211255913737
  44. Chun Chang, M.D.Modesto, CA 953511003015462
  45. Cindy Chang, MDCarmichael, CA 956081922036847
  46. Daniel Chang, D.O.La Mesa, CA 919421619265675
  47. Daniel Chang, M.D.Riverside, CA 925081639379233
  48. Danny Chang, M.D.Sherman Oaks, CA 914031215981048
  49. David Chang, MDFontana, CA 923351780182196
  50. David Chang, M.D.Redlands, CA 923731972515252

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.