NPPES file of Aug 9, 2026

Ophthalmology Physician in California

2,899 NPPES records list ophthalmology physician with a practice address in California, 7.4 per 100,000 residents, the 14th highest rate of 51. Los Angeles and San Francisco have the most; each record links to the provider's NPI and the California license search. Page 58 of 58.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207W00000X · 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, 308

  1. Los Angeles308
  2. San Francisco167
  3. San Diego147
  4. Sacramento95
  5. San Jose59

Ophthalmology Physician records in California

  1. Hyelin You, MDFountain Valley, CA 927081417539818
  2. Timothy You, M.D.Santa Ana, CA 927051326041880
  3. Timothy Young, M.D.Clearlake, CA 954221710984422
  4. Jared Younger, MD, MPHFountain Valley, CA 927081740492271
  5. Bavand Youssefzadeh, D.OHuntington Beach, CA 926481568714079
  6. David Yu, MDPasadena, CA 911051346212354
  7. Gina Yu, MDPalo Alto, CA 943051407432057
  8. Melissa Yuan, MDPalo Alto, CA 943051215521794
  9. Sean YuanLos Angeles, CA 900951538818257
  10. Dana Yuen, M.D.Monterey Park, CA 917541972534634
  11. Kevin Yuhan, MDAnaheim, CA 928071043387962
  12. Ingu Yun, MDOakland, CA 946111487732277
  13. Edward Yung, M.D.Upland, CA 917861225391725
  14. Alexander Zabaneh, M.D.Chula Vista, CA 919101346687233
  15. Karim Zablit, M.D.San Diego, CA 921281083700538
  16. John Zack, M.D.Del Mar, CA 920141629046347
  17. Alejandro Zaffaroni, M.D.Los Altos, CA 940241316963507
  18. Ali Zaidi, MDSan Francisco, CA 941151417006479
  19. Sameen Zaidi, M.D.San Jose, CA 951281851603450
  20. Arman ZamanLos Angeles, CA 900331417375114
  21. Steven Zane, MDSan Diego, CA 921201578622163
  22. Diana Zanoni-Potts, MDStockton, CA 952101396823100
  23. Robert Zappia, M.D.Redlands, CA 923731922378298
  24. Shahriar Zarnegar, M.D.Santa Maria, CA 934541790788008
  25. Bryan Zarrin, MDValencia, CA 913551427686286
  26. Gene Zdenek, M.D.Reseda, CA 913351326104514
  27. John Zdral, MDFullerton, CA 928351801993944
  28. Matthew Zealear, M.D.Grass Valley, CA 959451366516981
  29. Peter Zeegen, M.D.Encino, CA 914361578544144
  30. John Zeiter, MDSan Francisco, CA 941101750887543
  31. John Zeiter, M.D.Stockton, CA 952021447330634
  32. Joseph Zeiter, MDStockton, CA 952021588753909
  33. Joseph Zeiter, M.D.Stockton, CA 952021588824494
  34. Steven Zelko, M.D.Santa Barbara, CA 931091306908223
  35. George Zhang, MDSan Gabriel, CA 917761922561554
  36. Grace Zhang, MDSanta Rosa, CA 954051679501670
  37. Kang Zhang, MDLa Jolla, CA 920371972693562
  38. Kevin Zhang, M.D.San Francisco, CA 941151508493925
  39. Lily ZhangWalnut Creek, CA 945981043771850
  40. Nanfei Zhang, M.D.Sacramento, CA 958151194053231
  41. Xiaolin Zhang, M.D.Westlake Village, CA 913611063739928
  42. Xiaoyan Zhang, MDSan Francisco, CA 941151891873402
  43. Youning Zhang, M.D.San Francisco, CA 941431881057222
  44. Luo Luo ZhengPalo Alto, CA 943041912369067
  45. Andrew Zhou, MDSanta Cruz, CA 950651245694959
  46. Feilin Zhu, M.D.La Palma, CA 906231497045041
  47. Anne Ziffer, MDSunnyvale, CA 940851922180140
  48. Richard Zipf, MDSacramento, CA 958191699896381
  49. Nicholas Zubyk, MDSan Diego, CA 921071285625624

Source: CMS NPPES, primary taxonomy 207W00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 14 of 51 per resident

  1. Oregon7.6
  2. Minnesota7.6
  3. Wisconsin7.5
  4. California7.4
  5. Illinois7.2
  6. New Hampshire7.1
  7. 50 states and D.C.6.7

Source: CMS NPPES, primary taxonomy 207W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

78.5% of these records appear in a Medicare file, against 77.8% 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. California78.5%
  2. United States77.8%

Ophthalmology Physician records in California, measured

  • In a Medicare file2,277 of 2,899 · 78.5% here, 77.8% nationally
  • In the CMS Doctors and Clinicians file1,909 · 65.9% here, 65.5% nationally
  • Not updated in five years or more1,945 · 67.1% here, 63.6% nationally
  • Median graduation year2001 · the 1,907 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,899 NPPES records list ophthalmology physician (207W00000X) as their primary taxonomy with a practice address in California: 7.4 per 100,000 residents against 6.7 nationally (50 states and D.C.). Los Angeles has 308 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. New York1,822
  2. Florida1,581
  3. Texas1,514
  4. Pennsylvania1,088

States with a similar rate per 100,000

  1. Wisconsin7.5
  2. Minnesota7.6
  3. Oregon7.6
  4. Illinois7.2

The largest states

  1. New York1,822
  2. Florida1,581
  3. Texas1,514
  4. Pennsylvania1,088
  5. Illinois898

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.