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 69 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. Mitchell Katona, MD, MPHEl Segundo, CA 902451205457041
  2. Aaron Katrikh, MDTorrance, CA 905021114581758
  3. Frances Katris, M.D.Chico, CA 959281104872431
  4. Christopher Katsura, M.D.Los Angeles, CA 900951568704914
  5. Alexander Katz, MDSan Leandro, CA 945771134412489
  6. Dan Katz, M.D.Los Angeles, CA 900481922094101
  7. Michael Katz, MDWalnut Creek, CA 945961205914306
  8. Samuel Katz, M.D.San Ramon, CA 945831447469424
  9. Kelly Katzberg, M.D.Glendale, CA 912081205018231
  10. Robert Katzer, M.D.Orange, CA 928681467612580
  11. Elizabeth Kaufman, MDSan Diego, CA 921231942644679
  12. Kate KaufmanLos Angeles, CA 900331538206321
  13. Seth Kaufman, M.D.Fairfield, CA 945331023045515
  14. Pranav KaulSan Francisco, CA 941431790361293
  15. Manparbodh KaurRiverside, CA 925041326788530
  16. Milton Kawabe, MDAnaheim, CA 928071487713004
  17. Joy Kay, M.D.Sacramento, CA 958251720303811
  18. Rosanne Kay, MDManhattan Beach, CA 902661346332293
  19. Sophie Kay, D.OManteca, CA 953371578731261
  20. Victoria Kay, MDSan Diego, CA 921341508325804
  21. Mohammed Kayali, MDMerced, CA 953481912165549
  22. Ryan Kaylor, DOSan Diego, CA 921341548882053
  23. Clayton Kazan, MDLynwood, CA 902621245268119
  24. Ernest Kazato, M.D.Porterville, CA 932571801807557
  25. Bahare Kazemi, MDStockton, CA 952041033812334
  26. Karmen Kazma, MDTemecula, CA 925921750084703
  27. Amin Antoine Kazzi, MDOrange, CA 928681538249701
  28. James Keaney, MDSan Leandro, CA 945781700877420
  29. Robert Keaney, D.O.Monterey, CA 939401306949672
  30. James Keany, M.D.Mission Viejo, CA 926911598799330
  31. Breelan Kear, M.D.Orange, CA 928681104358472
  32. Syndi Keats, M.D.Truckee, CA 961611427085364
  33. Beth Keegstra, M.DSan Jose, CA 951161558382093
  34. Peter Keenan, MDLos Alamitos, CA 907201699068601
  35. Lisa Keenly, MDSacramento, CA 958251104904879
  36. Stephen Kefalas, M.D.West Hollywood, CA 900481285665422
  37. Benjamin Keh, MDSacramento, CA 958251720166473
  38. William Kehr, MDLoma Linda, CA 923541083243190
  39. Diane Kehrli, NPLancaster, CA 935341174581532
  40. Jonathan Kei, MDSacramento, CA 958171922028174
  41. Jarod Keller, M.D.Los Angeles, CA 900331578918264
  42. Kenneth Kelley, MDSacramento, CA 958171366608945
  43. Lisa Kellman, D.O.Marina Del Rey, CA 902921821164690
  44. Aubrey KellyLos Angeles, CA 900241730822206
  45. Christian KellySan Diego, CA 921031053553693
  46. Kevin KellyLa Mesa, CA 919421811924764
  47. Sarah Kelmenson-Chau, MDBerkeley, CA 947051689796674
  48. John Kelsey, M.D.Eureka, CA 955011427010255
  49. Kyle Kelson, MDSan Luis Obispo, CA 934051568856474
  50. Lisa Kelty, MDCamp Pendleton, CA 920551649210808

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.