Doctor profile · Federal record

Dr. Karen Lin, O.D.

Optometrist (CMS: Optometry) · Irvine, CA

  • NPI 1831241801
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
850 Health Sciences RD
Irvine, CA 926173058
(949) 824-2020
Additional location
2575 Yorba Linda Blvd
Fullerton, CA 928311615
(714) 449-7401
fax (714) 992-7850
Mailing address
200 S Manchester Ave Ste 300
Orange, CA 928683219

Credentials & registration

NPPES · NUCC
NPI registered
January 2007 — 19 yrs on file
Profile last updated
December 22, 2023
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
California #OPT12328TPA

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831241801. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
149
Distinct HCPCS
1
Medicare allowed
$15,273
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 149 136 $103

In context: peer comparison

Among 4 peers in Irvine Optometrist, average services per provider: 124. This provider delivers 1.2× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Karen Lin's medical specialty?
Dr. Karen Lin practices Optometrist in Irvine, CA.
Where does Dr. Karen Lin practice?
Dr. Karen Lin practices at 850 Health Sciences RD, Irvine, CA 926173058. Office phone: 9498242020.
What is Dr. Karen Lin's NPI?
Dr. Karen Lin's National Provider Identifier (NPI) is 1831241801, issued by NPPES.
Does Dr. Karen Lin accept Medicare assignment?
Yes. Dr. Karen Lin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karen Lin commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.