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 106 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. Nhi Nguyen, ODIrvine, CA 926201497597520
  2. Nhi Nguyen, O.D.Corona, CA 928811841785326
  3. Nicole Nguyen, ODLos Angeles, CA 900041023787249
  4. Nikki Nguyen, O.D.Garden Grove, CA 928431912089442
  5. Pat Nguyen, O.D.Panorama City, CA 914021952454936
  6. Peter Nguyen, O.D.Gardena, CA 902491376685958
  7. Peter Nguyen, ODRowland Heights, CA 917481316589526
  8. Peter Nguyen, O.D.San Jose, CA 951251831377217
  9. Pheobe Nguyen, O.D.Fontana, CA 923351891247581
  10. Phoebe Nguyen, O.D.Monterey, CA 939401710263819
  11. Phong Nguyen, O.D.West Covina, CA 917921710972195
  12. Phu Nguyen, O.D.Beaumont, CA 922231427463025
  13. Phuong Nguyen, O.D.Westminster, CA 926831033642392
  14. Phuong NguyenAnaheim, CA 928071679374748
  15. Phuong Nguyen, O.D.Capitola, CA 950101710177977
  16. Quan Anh Nguyen, O.D.Perris, CA 925711326444639
  17. Quang Nguyen, O.D.San Diego, CA 921151417948449
  18. Quinn Nguyen, O.D.Stockton, CA 952071528038486
  19. Richard Nguyen, ODSouth San Francisco, CA 940801225652308
  20. Rosanna Nguyen, O.D.Valencia, CA 913551043574742
  21. Ryan Nguyen, O.D.Chula Vista, CA 919111629121348
  22. Sandy Nguyen, O.D.Glendale, CA 912031497945323
  23. Scott Nguyen, ODRiverside, CA 925041427721661
  24. Shannon Nguyen, O.D.Stanton, CA 906801346233954
  25. Sidney Nguyen, ODLivermore, CA 945501285500769
  26. Son Nguyen, O.D.Compton, CA 902211962536649
  27. Son Nguyen, O.D.Bakersfield, CA 933121548212426
  28. Son Nguyen, O.D.San Jose, CA 951271609189786
  29. Stephanie NguyenCupertino, CA 950141629366513
  30. Sylvester NguyenModesto, CA 953561861844680
  31. Tam Nguyen, O.D.Westminster, CA 926831346366093
  32. Tam Nguyen, ODSan Jose, CA 951171053891762
  33. Tam-An Nguyen, O.D.Placerville, CA 956671114126927
  34. Tammy Nguyen, ODSan Bruno, CA 940661801175443
  35. Tammy Nguyen, ODSan Mateo, CA 944011396864575
  36. Tammy Nguyen, O.D.San Jose, CA 951221053497172
  37. Tanya NguyenLong Beach, CA 908221265227045
  38. Teresa Nguyen, ODFremont, CA 945381497237051
  39. Teresa Nguyen, ODBerkeley, CA 947201538685342
  40. Thai-Binh Nguyen, O.D.S El Monte, CA 917331780087890
  41. Thanh Nguyen, O.D.San Diego, CA 921281992813323
  42. Thanh Nguyen, O.D.Roseville, CA 956781093197907
  43. Thanh Binh Nguyen, O.D.Pomona, CA 917661588970321
  44. Thanh-Huong Nguyen, O.D.Milpitas, CA 950351811047251
  45. Thanh-Son Nguyen, ODMorgan Hill, CA 950371588069371
  46. Thanh-Vi Nguyen, O.D.La Quinta, CA 922531003043860
  47. Thao Nguyen, O.D.Garden Grove, CA 928431922123561
  48. Theresa NguyenEncino, CA 914361922362086
  49. Theresa Nguyen, ODChula Vista, CA 919151609555713
  50. Theresa Nguyen, ODMerced, CA 953481437896180

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.