NPPES file of Aug 9, 2026

Karen C. Lin, O.D.

Optometrist · Irvine, CA

Karen C. Lin, O.D. is an optometrist with a practice address in Irvine, California, and NPI 1831241801, issued on Jan 18, 2007. Check the license (California OPT12328TPA, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831241801
Name
Karen C. Lin
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OPT12328TPA CA
Self-reported in NPPES; status is on the state search
Practice location
850 Health Sciences RD, Irvine, CA 92617
Phone
(949) 824-2020
Enumerated
Jan 18, 2007
Record last updated
Dec 22, 2023
Medicare enrollment
Enrolled (PECOS I20091118000259); accepts Medicare assignment
Medical or professional school
Southern California College Of Optometry, 2003
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest optometrist records → All 8,308 in California → Look up another NPI →

Also registered at 850 Health Sciences RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ashraf Ahmad, M.D.Ophthalmology Physician1689108425
  2. Yosur AlsulaimanOphthalmology Physician1457204661
  3. Andrew Browne, M.D., PH.D.Retina Specialist (Ophthalmology) Physician1154615383
  4. Teresa Chen, MDOphthalmology Physician1679034367
  5. Katherine Chuang, MDOphthalmology Physician1356831929
  6. Robert Crow, MDNeuro-ophthalmology Physician1285646398

Verify Karen C. Lin in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license OPT12328TPA    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Bills Medicare through one group practice

  1. Regents OF The University OF CaliforniaOrange, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Karen C. Lin among 8,308 optometrist records in California

Karen C. Lin, O.D. is one of 8,308 optometrist records with a practice address in California. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 46% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated2003 · median 2008 among the 3,573 with a school on file
  • Record last updated2023 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

84 optometrist records list a practice address in Irvine

They are 84 of the 7,778 NPPES records with a practice address in Irvine, and 8,308 optometrist records in California.

All 8,308 in California → Every provider in Irvine → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Yasmeen AbdelfattahIrvine, CA 926181417786617
  2. Caitlin BoznerIrvine, CA 926181124983309
  3. Vickie Bui, O.D.Irvine, CA 926181760060529
  4. Kuei-Yu Chang, O.D.Irvine, CA 926181962758706
  5. Wiselie Chang, ODIrvine, CA 926181811617574
  6. Jasper Cheng, ODIrvine, CA 926181457024721
  7. Arthur Corish, O.D.Irvine, CA 926181043228182
  8. Chiara Delos Reyes, ODIrvine, CA 926181447923974

Common questions

What is Karen C. Lin, O.D.'s NPI number?

Karen C. Lin, O.D.'s National Provider Identifier (NPI) is 1831241801, issued on Jan 18, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Karen C. Lin, O.D. located?

The NPPES record lists a practice address at 850 Health Sciences RD, Irvine, CA, 92617. Phone: (949) 824-2020. Providers update this record themselves, so call before visiting.

How can I verify Karen C. Lin, O.D.'s license?

NPPES lists California license number OPT12328TPA, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.