Dr Cathy Linh Nguyen, OD - Medicare Optometrist in Fontana, CA

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Dr Cathy Linh Nguyen, OD is a medicare enrolled "Optometrist" provider in Fontana, California. Her current practice location is 8190 Mango Ave, Fontana, California. You can reach out to her office (for appointments etc.) via phone at (909) 350-2020.

Dr Cathy Linh Nguyen is licensed to practice in California (license number 14390) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1912260878.

Contact Information

Dr Cathy Linh Nguyen, OD
8190 Mango Ave,
Fontana, CA 92335-3610
(909) 350-2020
(909) 350-2341

Map and Direction




Healthcare Provider's Profile

Full NameDr Cathy Linh Nguyen
GenderFemale
SpecialityOptometrist
Location8190 Mango Ave, Fontana, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1912260878
  • Provider Enumeration Date: 06/15/2012
  • Last Update Date: 01/18/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5890941835
  • Enrollment ID: I20120808000157

Medical Identifiers

Medical identifiers for Dr Cathy Linh Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1912260878NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 14390 (California)Primary

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. Dr Cathy Linh Nguyen allows following entities to bill medicare on her behalf.
Provider NameWendy K Duncan
Provider TypePractitioner - Optometry
Provider IdentifiersNPI Number: 1538152145
PECOS PAC ID: 1355233552
Enrollment ID: I20040324001777
Provider NameCathy Nguyen Od A Professional Optometric Corporation
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1164205613
PECOS PAC ID: 3274981188
Enrollment ID: O20231201002251

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. Dr Cathy Linh Nguyen 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
Dr Cathy Linh Nguyen, OD
8190 Mango Ave,
Fontana, CA 92335-3610

Ph: (909) 350-2020		Dr Cathy Linh Nguyen, OD
8190 Mango Ave,
Fontana, CA 92335-3610

Ph: (909) 350-2020

Reviews and Comments


Optometrist in Fontana, CA

Junyao Xu, OD
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Tammy M Tran, OD
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Mai Nguyen, O.d., Optometric Corporation
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Arlene Sarroca Arcega, OD
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Dr. Matthew M. Enos, O.D.
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Practice Location: 8190 Mango Ave, Fontana, CA 92335
Phone: 909-350-2020    
Theprangsy Nantha, OD
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Practice Location: 9961 Sierra Ave, Fontana, CA 92335
Phone: 909-427-3910    

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.