NPPES file of Aug 9, 2026

Optometrist in California

8,308 NPPES records list optometrist with a practice address in California, 21 per 100,000 residents, the 17th 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 56 of 167.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 152W00000X · 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, 371

  1. Los Angeles371
  2. San Diego342
  3. San Francisco295
  4. San Jose207
  5. Sacramento176

Optometrist records in California

  1. Susan Horiuchi, ODLaguna Beach, CA 926511881736320
  2. Joseph Horne, O.D.Templeton, CA 934651912914482
  3. Kerry Horner, O.D.Modesto, CA 953501467441931
  4. Lisa Hornick, O.D.Roseville, CA 956611720068844
  5. Bruce Hornstein, O.D.Glendale, CA 912031558432633
  6. Tyler Horton, ODIndio, CA 922011669114252
  7. Peter Horvath, O.D.Westminster, CA 926831629105499
  8. Sandra Horwitz, O.D.Lawndale, CA 902601790777381
  9. Russell Hosaka, O.D.Torrance, CA 905051447245188
  10. Jesse Hoshizaki, ODLos Angeles, CA 900571972114478
  11. Valerie Hoshizaki, ODSierra Madre, CA 910241598381410
  12. Paymon Hossini, ODChula Vista, CA 919111437397171
  13. Yurianna HouOakland, CA 946051467172841
  14. Susan Houchin, O.D.Chula Vista, CA 919111376537183
  15. Araz Housepian, ODPasadena, CA 911051679164875
  16. Paul Houson, ODLos Angeles, CA 900271780751552
  17. Annie Hovakemian, ODMoorpark, CA 930211063935880
  18. Nanar Hovasapian, O.D.Glendale, CA 912081104239144
  19. Irene Hovland, O.D.Santa Rosa, CA 954031689728388
  20. Jivan HovsepyanPasadena, CA 911071679215255
  21. Alison Howard, ODSan Diego, CA 921201720136625
  22. Marsha Howard, O.D.Signal Hill, CA 907551861532665
  23. Mary Howard, ODEl Cajon, CA 920211831129329
  24. Robert Howard, ODSan Diego, CA 921111912977554
  25. William Howard, O.D.Santa Clara, CA 950511427112275
  26. Steven Howell, O.D.Madera, CA 936371588658397
  27. Steven Howlett, O.D.Los Angeles, CA 900021316149545
  28. Austin Hoy, ODLompoc, CA 934361821775099
  29. William Hoyer, ODCloverdale, CA 954251477588051
  30. Michelle Hoyt, O.DSacramento, CA 958151215471891
  31. Elaine Hse, O.D.Brea, CA 928211750431573
  32. Joanna Hsia, O.D.Costa Mesa, CA 926271255631578
  33. Sophia Hsia, O.D.Glendale, CA 912031285040147
  34. Don Hsiao, ODElk Grove, CA 957581306972104
  35. Gigi Hsiao, O.D.Cupertino, CA 950141427328665
  36. Hsing Hsiao, O.DArcadia, CA 910061053575282
  37. Sophia Hsiao, O.D.Castro Valley, CA 945521093097149
  38. Chris Hsieh, ODFullerton, CA 928331114553518
  39. Joyce Hsieh, O.D.Woodland Hills, CA 913671134384225
  40. Justine Hsieh, ODSanta Ana, CA 927051619502705
  41. Linda Hsieh, O.D.Mission Viejo, CA 926911205846961
  42. Michael Hsieh, ODPalmdale, CA 935521013430859
  43. Park Hsieh, O.D.Pinole, CA 945641730239559
  44. Pei-Chen Hsieh, O.D.San Jose, CA 951201609005115
  45. Pei-Shan Hsieh, O.D.Windsor, CA 954921023208071
  46. Abby Hsu, O.D.Fremont, CA 945391952724437
  47. Charlene Hsu, ODLos Angeles, CA 900291942921242
  48. Doro Hsu, ODBerkeley, CA 947021598343105
  49. Geoffrey Hsu, O.D.Lawndale, CA 902601609289917
  50. Grace Hsu, O.D.Anaheim, CA 928011851790893

Source: CMS NPPES, primary taxonomy 152W00000X: records by practice city and the list of records, file of Aug 9, 2026.

California ranks 17 of 51 per resident

  1. Montana22
  2. Illinois21
  3. Massachusetts21
  4. California21
  5. Iowa21
  6. Washington21
  7. 50 states and D.C.19

Source: CMS NPPES, primary taxonomy 152W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

66.8% of these records appear in a Medicare file, against 71.9% 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. California66.8%
  2. United States71.9%

Optometrist records in California, measured

  • In a Medicare file5,553 of 8,308 · 66.8% here, 71.9% nationally
  • In the CMS Doctors and Clinicians file3,575 · 43.0% here, 57.6% nationally
  • Not updated in five years or more5,560 · 66.9% here, 65.3% nationally
  • Median graduation year2008 · the 3,573 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 152W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

8,308 NPPES records list optometrist (152W00000X) as their primary taxonomy with a practice address in California: 21 per 100,000 residents against 19 nationally (50 states and D.C.). Los Angeles has 371 of them (4%).

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. Texas5,006
  2. Florida3,594
  3. New York3,535
  4. Illinois2,697

States with a similar rate per 100,000

  1. Massachusetts21.4
  2. Iowa21.1
  3. Montana21.6
  4. Washington21.0

The largest states

  1. Texas5,006
  2. Florida3,594
  3. New York3,535
  4. Illinois2,697
  5. Pennsylvania2,640

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.