NPPES file of Aug 9, 2026

Otolaryngology Physician in California

1,212 NPPES records list otolaryngology physician with a practice address in California, 3.1 per 100,000 residents, the 36th 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 24 of 25.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207Y00000X · 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, 128

  1. Los Angeles128
  2. San Diego73
  3. San Francisco68
  4. Sacramento67
  5. Stanford47

Otolaryngology Physician records in California

  1. James Williams, MDCovina, CA 917231316924608
  2. Ayal Willner, MDLong Beach, CA 908071548334295
  3. Allison Wilson, MDSan Francisco, CA 941431902499544
  4. Mark Wilson, M.D.Rancho Mirage, CA 922701376535708
  5. Linda Wolf, MDSan Jose, CA 951191578649083
  6. David Wolfman, MDSacramento, CA 958231619055332
  7. Hau Sin Wong, MDHarbor City, CA 907101467526350
  8. Stephanie Wong, MDLos Angeles, CA 900331659020295
  9. Linda Woo, M.D.Chula Vista, CA 919101467720656
  10. Murray Woolf, MDFairfield, CA 945331073531356
  11. Brian Worden, M.D.Palo Alto, CA 943041376601245
  12. Lewit Worrell, MDSan Dimas, CA 917731821167933
  13. Bozena Wrobel, M.D.Los Angeles, CA 900331457378168
  14. Arthur Wu, M.D.Los Angeles, CA 900481952565103
  15. Robert Wu, M. D.San Leandro, CA 945781669574059
  16. Vivian Wu, M.D.Santa Monica, CA 904041881849115
  17. Rhoda Wynn, MDRedwood City, CA 940631467530956
  18. Christopher XiaoSanta Cruz, CA 950601124480736
  19. Caroline Xu, MDStanford, CA 943051891179297
  20. Helen Xu, MDLoma Linda, CA 923541881701639
  21. Josie Xu, MDLos Angeles, CA 900891295345650
  22. Mary Jue Xu, MDSan Francisco, CA 941431457713281
  23. Carol Yan, MDSan Diego, CA 921031619237260
  24. Srinivas Yanamadala, MDTorrance, CA 905051346321510
  25. Grace Yang, M.D.Los Angeles, CA 900171316992423
  26. Jane Yang, MDSan Francisco, CA 941151336227966
  27. Yue Yang, M.D.Los Angeles, CA 900331619133162
  28. Charles Yates, M.D.Modesto, CA 953501750334116
  29. Yuk Yee Yau, M.D.Orange, CA 928681821226903
  30. Eric Yavrouian, M. D.Glendale, CA 912061194054015
  31. James Yeh, M.D.West Covina, CA 917901699715839
  32. Christopher Yian, M.D.Laguna Hills, CA 926531003913336
  33. Helena Yip, MDBurlingame, CA 940101033193826
  34. Michael Yong, MDLos Angeles, CA 900251467108647
  35. Nina Yoshpe, MDLong Beach, CA 908071952475691
  36. Jonathan Young, M.D.Sacramento, CA 958161275760704
  37. Vyvy Young, M.D.San Francisco, CA 941431437299351
  38. Andrew Yousef, MDSan Diego, CA 921031275152662
  39. Xiaofei Yu, MDSan Francisco, CA 941151417741661
  40. Brian Yuhan, MDLos Angeles, CA 900271205395019
  41. David Yun, MDGlendale, CA 912061932186459
  42. Paul Yun, MDMenlo Park, CA 940251174583355
  43. Allan Yung, MDAlhambra, CA 918011831269323
  44. Mani Zadeh, M.D.Los Angeles, CA 900671720183924
  45. Yelena Zak, PA-CLos Angeles, CA 900481790401529
  46. Elizabeth ZambrickiBurlingame, CA 940101629368485
  47. Matthew Zavod, M.D.Woodland, CA 956951578640918
  48. Stefan Zechowy, M.D.Santa Rosa, CA 954041184724171
  49. Mark Zeme, M. D.Castro Valley, CA 945461669400388
  50. Jennifer Zemo, M.D.Anaheim, CA 928071730340183

Source: CMS NPPES, primary taxonomy 207Y00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 36 of 51 per resident

  1. Mississippi3.2
  2. Virginia3.1
  3. Alabama3.1
  4. California3.1
  5. Indiana3.1
  6. Michigan3.1
  7. 50 states and D.C.3.4

Source: CMS NPPES, primary taxonomy 207Y00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

79.9% of these records appear in a Medicare file, against 79.4% 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. California79.9%
  2. United States79.4%

Otolaryngology Physician records in California, measured

  • In a Medicare file968 of 1,212 · 79.9% here, 79.4% nationally
  • In the CMS Doctors and Clinicians file818 · 67.5% here, 66.8% nationally
  • Not updated in five years or more759 · 62.6% here, 57.7% nationally
  • Median graduation year2004 · the 818 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207Y00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,212 NPPES records list otolaryngology physician (207Y00000X) as their primary taxonomy with a practice address in California: 3.1 per 100,000 residents against 3.4 nationally (50 states and D.C.). Los Angeles has 128 of them (11%).

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. Texas790
  2. New York765
  3. Florida659
  4. Pennsylvania531

States with a similar rate per 100,000

  1. Alabama3.1
  2. Virginia3.1
  3. Indiana3.1
  4. Michigan3.1

The largest states

  1. Texas790
  2. New York765
  3. Florida659
  4. Pennsylvania531
  5. Illinois482

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.