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 21 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. Joyce Chen, O.D.Anaheim, CA 928011821300765
  2. Julie Chen, O.D.Irvine, CA 926121548484538
  3. Julie Chen, O.D.San Francisco, CA 941051841326493
  4. Jun Wing Chen, ODAnaheim, CA 928071073354478
  5. Ken ChenAlameda, CA 945011346640976
  6. Konhsin Connie Chen, O.D.Concord, CA 945201972598910
  7. Lily ChenPasadena, CA 911071346863255
  8. Michael Chen, O.D.Santa Clara, CA 950501568877496
  9. Mina Chen, ODPetaluma, CA 949521982263265
  10. Paul Chen, O.D.Montebello, CA 906401215242748
  11. Peggy Chen, O.DFremont, CA 945361598780561
  12. Phoebe Chen, ODRancho Cucamonga, CA 917301427639426
  13. Rosanna Chen, O.D.Daly City, CA 940151629259726
  14. Ruth Chen, O.D.Albany, CA 947061194862250
  15. Sandra Chen, O.D.Milpitas, CA 950351518263862
  16. Shannon Chen, ODIrvine, CA 926041619853942
  17. Simon Chen, O.D.Placentia, CA 928701982794525
  18. Susan Chen, O.D.Tustin, CA 927821427101021
  19. Tiffany Chen, OD, MSSan Francisco, CA 941431114601465
  20. Vincent Chen, O.D.Rowland Heights, CA 917481992839245
  21. Windy Chen, O.D.Vista, CA 920831518190123
  22. Yau-Ru Chen, O.D.Newport Beach, CA 926631720278575
  23. Yaushi Chen, ODMilpitas, CA 950351770648784
  24. Ying-Ju Chen, O.D.El Cajon, CA 920201285864462
  25. Yung Fen Chen, ODBerkeley, CA 947201215626056
  26. Zheng Chen, O.D.Stanford, CA 943051033442306
  27. Zhuo Chen, O.D.Arcadia, CA 910061609189349
  28. Debbie Chen-Bennett, ODLa Mirada, CA 906381841331436
  29. Alisha Cheng, ODNewark, CA 945601952091837
  30. Chester Cheng, O.D.La Habra, CA 906311477716223
  31. Christine Cheng, O.D.Mission Viejo, CA 926911700279718
  32. David Cheng, ODSan Diego, CA 921201689722514
  33. Dennis Cheng, ODWest Covina, CA 917921497817886
  34. Eileen Cheng, O.D.Pleasant Hill, CA 945231215907076
  35. Elizabeth Cheng, O.D.Fremont, CA 945381083962930
  36. Geri Cheng, O.D.San Francisco, CA 941211003959750
  37. Helen Cheng, O.D.San Jose, CA 951291295967206
  38. Helena Cheng, ODSan Francisco, CA 941021982713616
  39. Jasper Cheng, ODIrvine, CA 926181457024721
  40. Jennifer Cheng, O.D.San Gabriel, CA 917761144606237
  41. Jenny Cheng, O.D.Redwood City, CA 940631437349552
  42. Jimmy Cheng, O.D.West Hollywood, CA 900461174663033
  43. Joseph Cheng, O.D.Santa Clara, CA 950511659527125
  44. Karen Cheng, O.D.Redwood City, CA 940631407182090
  45. Kimberly Cheng, ODSan Jose, CA 951281922307628
  46. Lorraine Cheng, ODLos Angeles, CA 900951821624164
  47. Mary Cheng, O.D.Rosemead, CA 917701477582849
  48. Maxwell Cheng, ODLos Angeles, CA 900341437218153
  49. Patty Cheng, O.D.San Diego, CA 921541265526263
  50. Sandra Cheng, ODSan Mateo, CA 944011982711446

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.