Karen C Lin, OD - Medicare Optometrist in Irvine, CA

Karen C Lin, OD is a medicare enrolled "Optometrist" provider in Irvine, California. She went to Southern California College Of Optometry and graduated in 2003 and has 21 years of diverse experience with area of expertise as Optometry. She is a member of the group practice Regents Of The University Of California and her current practice location is 850 Health Sciences Rd, Irvine, California. You can reach out to her office (for appointments etc.) via phone at (949) 824-2020.

Karen C Lin is licensed to practice in California (license number OPT12328TPA) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1831241801.

Contact Information

Karen C Lin, OD
850 Health Sciences Rd,
Irvine, CA 92617-3058
(949) 824-2020
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameKaren C Lin
GenderFemale
SpecialityOptometry
Experience21 Years
Location850 Health Sciences Rd, Irvine, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Karen C Lin attended and graduated from Southern California College Of Optometry in 2003
  NPI Data:
  • NPI Number: 1831241801
  • Provider Enumeration Date: 01/18/2007
  • Last Update Date: 12/22/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9739227422
  • Enrollment ID: I20091118000259

Medical Identifiers

Medical identifiers for Karen C Lin such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831241801NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist OPT12328TPA (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of California Irvine Medical CenterOrange, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Regents Of The University Of California983009427538

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Karen C Lin allows following entities to bill medicare on her behalf.
Provider NameRegents Of The University Of California
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1487602579
PECOS PAC ID: 7315841434
Enrollment ID: O20031120000945
Provider NameRegents Of The University Of California
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1871541953
PECOS PAC ID: 9830094275
Enrollment ID: O20031126000755
Provider NameSouthern California Permanente Medical Group
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1316979834
PECOS PAC ID: 6002729175
Enrollment ID: O20040126000823
Provider NameMarshall B Ketchum University
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1720101876
PECOS PAC ID: 9739075177
Enrollment ID: O20040224000463

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Karen C Lin is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Karen C Lin, OD
200 S Manchester Ave Ste 300,
Orange, CA 92868-3219

Ph: (714) 456-2986
Karen C Lin, OD
850 Health Sciences Rd,
Irvine, CA 92617-3058

Ph: (949) 824-2020

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.