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 132 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. Richard Silver, O.D.Santa Monica, CA 904031609851302
  2. Todd Silverberg, O.D.Tustin, CA 927821467578963
  3. Clifford Silverman, O.D.Lancaster, CA 935341952372401
  4. Andrea Silvers, ODEncino, CA 914361730147059
  5. Gerard Joseph Sim, ODGrand Terrace, CA 923131669363883
  6. Nicole Sim, O.D.Berkeley, CA 947091861577744
  7. Van Sim, O.D.Burbank, CA 915021114353687
  8. Eddie SimhairySan Diego, CA 921261689473324
  9. Curtis Simmons, O.D.Santa Cruz, CA 950601821069154
  10. Deric Simmons, O.D.Huntington Beach, CA 926471801886841
  11. Marc Simmons, O.D.Los Angeles, CA 900451730125188
  12. Brett Simon, O.D.Santa Barbara, CA 931011013117068
  13. Katherine Simon, O.D.Redwood City, CA 940631487858338
  14. Keith Simon, ODVenice, CA 902911821069311
  15. Richard Simonds, O.D.Hemet, CA 925451710988027
  16. Zareh Simonian, O.D.Pasadena, CA 911011285872309
  17. Felicia Simonis, O.D.Upland, CA 917861912038845
  18. James Simonson, O.D.Taft, CA 932681174541262
  19. Ida Simonyan, ODGlendale, CA 912031053085175
  20. Larry Simpfenderfer, O.D.Lodi, CA 952401902947179
  21. Elizabeth Simpson, ODOntario, CA 917621225044142
  22. Richard Simpson, ODOntario, CA 917621881600799
  23. Steven Simpson, O.D.Hemet, CA 925441508880030
  24. Richard Simsarian, O.D.San Francisco, CA 941221952475584
  25. Clarissa Sin, O.D.San Mateo, CA 944011619106903
  26. Nikta Sinai, O.D.Palmdale, CA 935501316297328
  27. Brian Singer, O.D.Canoga Park, CA 913031417093832
  28. Ronald Singer, O.D.Canoga Park, CA 913031497891170
  29. Gagandeep Singh, ODVisalia, CA 932911912743980
  30. Rahul Singh, O.D.Redwood City, CA 940631154618932
  31. Surveen Singh, ODSan Francisco, CA 941211235108531
  32. Phoebe Sinn, O.D.San Diego, CA 921201790917698
  33. Jack Sinow, O.D.San Francisco, CA 941031700969193
  34. Etienne Sinquin, O.D.Fresno, CA 937031962567065
  35. Bradley Sirois, O.D.Hemet, CA 925441669457347
  36. Sona Sirounian, O.D.Rancho Cucamonga, CA 917391790931590
  37. Desiree Sison, O.D.Fresno, CA 937041720535412
  38. Garrick Sit, O.D.Escondido, CA 920251710982806
  39. Farrah SittoChula Vista, CA 919101881343739
  40. Leslie Sitty, ODManhattan Beach, CA 902661689972721
  41. Daniel Situ, O.D.San Francisco, CA 941111003265877
  42. Jeannie Situ, ODVictorville, CA 923921528558269
  43. Sui Situ, O.D.San Francisco, CA 941321770872699
  44. Winnie Situ, ODDaly City, CA 940151851882583
  45. Arthur Siu, O.D.Oakland, CA 946101942228929
  46. Cesar Siu, O.D.Union City, CA 945871699821967
  47. Jessica SiuTracy, CA 953771689214900
  48. Matt Siu, O.D.Novato, CA 949451255783106
  49. Sivarupan Sivalingam, ODSanta Clara, CA 950541316477847
  50. David SivasFresno, CA 937271134194657

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.