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 110 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. Usha Periyanayagam, M.D.San Francisco, CA 941051346478385
  2. Elizabeth Perkis, DOSan Jose, CA 951191376038232
  3. Matthew Perl, M.D.San Diego, CA 921281013019678
  4. Michael Perlman, M.D.Los Alamitos, CA 907201144256355
  5. Chi Perlroth, MDWalnut Creek, CA 945981912111873
  6. Thomas Pero, M.D.Hermosa Beach, CA 902541043483597
  7. Edward Perry, MDBig Bear Lake, CA 923151790043131
  8. Wendell Perry, D.O.Fairfield, CA 945331073617064
  9. Zachary PerryMission Viejo, CA 926911154193761
  10. Aaron Pessl, M.D.Hayward, CA 945451063425072
  11. Richard Peters, MDSan Diego, CA 921201699976571
  12. Maureen PetersenPalm Springs, CA 922621467911784
  13. Brian Peterson, PACAlpine, CA 919011225119621
  14. Michael Peterson, M.D.Torrance, CA 905021497808018
  15. Ronald Peterson, DOBakersfield, CA 933011477533586
  16. William Peterson, M.D.Vacaville, CA 956871841236072
  17. Alexis Petra, MDRancho Mirage, CA 922701245241991
  18. Shane Petrites, MDOakland, CA 946021275020307
  19. Harry Petropoulos, M.DOakland, CA 946211255468187
  20. Courtenay Pettigrew, M.D.Fresno, CA 937211215347232
  21. Clair Pettinger, MDModesto, CA 953561487662631
  22. Robert Petty, DOSonoma, CA 954761497795496
  23. Freyr Petursson, M.D.Torrance, CA 905021811351562
  24. Bryan Pezeshki, MD, MBAWest Hollywood, CA 900481760912729
  25. Jolie Pfahler, MDSanta Monica, CA 904041629033782
  26. Richard Pfeiffer, M.D.Encinitas, CA 920241538169990
  27. Andrew PhamTorrance, CA 905021194353193
  28. Bryan PhamLoma Linda, CA 923541528763083
  29. David Pham, D.OCorona, CA 928821952403396
  30. Hoang Pham, MDWhittier, CA 906021699236380
  31. Kimberly Pham, DOStockton, CA 952041134757453
  32. Larry Pham, M.D.Newport Beach, CA 926631386818482
  33. Melanie PhamTorrance, CA 905021841797370
  34. Minh PhamVan Nuys, CA 914051710925086
  35. Nam Pham, DOSan Gabriel, CA 917761922454545
  36. Steve Pham, M.D.Berkeley, CA 947041285950253
  37. Tuong PhamModesto, CA 953561245722495
  38. Dustin Phan, MDColton, CA 923241881269637
  39. Huy Phan, M.D.Sunnyvale, CA 940851609308733
  40. Jason PhanBakersfield, CA 933061083467765
  41. Julie Phan, M.D.Sacramento, CA 958171467749614
  42. Mimi Phan, M.D.Sacramento, CA 958171770767071
  43. Stephen Phan, M.D.Downey, CA 902421831397413
  44. Vu Phan, MDSan Diego, CA 921271902023336
  45. Darren Phelan, M.D.Menlo Park, CA 940251598878894
  46. Molly Phelps, MDSan Mateo, CA 944031083814800
  47. Genevieve Philiponis, MDLodi, CA 952401124527247
  48. Karen Philippi, M.D.French Camp, CA 952311801819479
  49. Charles Phillips, MDFresno, CA 937101679587141
  50. Christopher Phillips, MDEncinitas, CA 920241679100457

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.