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 99 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. Arian Nachat, M.D.Merced, CA 953401407892391
  2. Sassan Naderi, M.D.San Diego, CA 921031811987936
  3. Swathi Nadindla, MDBerkeley, CA 947051659534295
  4. Devika Nadkarni, MDTorrance, CA 905021457056012
  5. Dan Nadler, M.D.Garden Grove, CA 928431053424044
  6. Renate Nadler, M.DGilroy, CA 950201902828973
  7. Adam Nadolski, M.D.San Diego, CA 921031447698915
  8. Larisa Nadukhovskaya, DOSan Carlos, CA 940701962428409
  9. John Naftel, M.D.Moreno Valley, CA 925551124133293
  10. Chaithra Nagar, MDSausalito, CA 949651073589222
  11. Ganesh NagarajOakland, CA 946111669890885
  12. Brandy Nagle, M.D.Sacramento, CA 958231699750588
  13. Jeffrey NahnFresno, CA 937211639531478
  14. Nadav Nahumi, M.D.Torrance, CA 905021508391681
  15. Richard Naidus, M.D.San Francisco, CA 941091972527455
  16. Niels NaimonEscondido, CA 920291972062867
  17. Lin Naing, M.D.San Jose, CA 951281295099034
  18. Laurie Naito, MDLos Angeles, CA 900341154498020
  19. Hares Najand, MDSanta Monica, CA 904041912121146
  20. Jonathan Najman, M.D.Sacramento, CA 958251114345790
  21. Joe Nakagawa, MDTorrance, CA 905051346257854
  22. Yuko Nakajima, M.D.San Diego, CA 921031043530355
  23. Kenneth Nakamoto, M.D.Pomona, CA 917671215949102
  24. Robert Nakamura, MDHemet, CA 925431780692244
  25. Zachary Nakao, D.O.Salinas, CA 939011700171279
  26. Howard Nakashioya, M.D.Newport Beach, CA 926631144284001
  27. Jeffrey NakashioyaLoma Linda, CA 923541275987596
  28. Eric Nakkim, MDTorrance, CA 905051124123054
  29. Hiroya Nambu, MDRedwood City, CA 940631801214275
  30. Kiarash Namdaran, MDOakland, CA 946111669550448
  31. Srihari NamperumalSan Francisco, CA 941431144542309
  32. Jillianne Nanadiego, DOCulver City, CA 902321619598133
  33. Samantha Nanayakkara, MDLos Angeles, CA 900331760001127
  34. Sophia NanceLos Angeles, CA 900241528792355
  35. Andrew Napier, MDSan Jose, CA 951161285175430
  36. Ali Naqvi, M.D.Sacramento, CA 958231801150354
  37. Sean Nardi, D.O.Oceanside, CA 920551295174761
  38. Scott Narimatsu, M.D.Van Nuys, CA 914051275563058
  39. Rajender Narla, MDWoodland Hills, CA 913671518082593
  40. Yizza Narvaez, M.D.Santa Rosa, CA 954031053603068
  41. Robert Narverud, M.D.Sacramento, CA 958171457335754
  42. Oday Naser, M.D.Oroville, CA 959661609164300
  43. Sief Naser, M.D.Oroville, CA 959661598078396
  44. Nina Nash, MDBellflower, CA 907061639240542
  45. Kent Nasser, MDHarbor City, CA 907101124176045
  46. Homayoun Nassiri, M.D.Van Nuys, CA 914051285747584
  47. Dalia Nassman, D.O.Upland, CA 917861639410921
  48. Eric Nastro, M.D.Los Angeles, CA 900331710929831
  49. Pravene Nath, M.D.Palo Alto, CA 943051891788527
  50. John Nations, MDSacramento, CA 958161942318852

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.