Dr Lethuy T Nguyen, OD - Medicare Optometrist in Upland, CA

Dr Lethuy T Nguyen, OD is a medicare enrolled "Optometrist" provider in Upland, California. She went to Southern California College Of Optometry and graduated in 1992 and has 32 years of diverse experience with area of expertise as Optometry. Her current practice location is 553 N Mountain Ave, Upland, California. You can reach out to her office (for appointments etc.) via phone at (909) 985-2876.

Dr Lethuy T Nguyen is licensed to practice in California (license number 9953) 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 1033285689.

Contact Information

Dr Lethuy T Nguyen, OD
553 N Mountain Ave,
Upland, CA 91786-5016
(909) 985-2876
(909) 946-8585

Map and Direction




Healthcare Provider's Profile

Full NameDr Lethuy T Nguyen
GenderFemale
SpecialityOptometry
Experience32 Years
Location553 N Mountain Ave, Upland, 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:
  • Dr Lethuy T Nguyen attended and graduated from Southern California College Of Optometry in 1992
  NPI Data:
  • NPI Number: 1033285689
  • Provider Enumeration Date: 11/27/2006
  • Last Update Date: 03/17/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 9830258409
  • Enrollment ID: I20081111000783

Medical Identifiers

Medical identifiers for Dr Lethuy T Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033285689NPI-NPPES
SD0099530MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 9953 (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 Lethuy T Nguyen allows following entities to bill medicare on her behalf.
Provider NameDr Tanya Optometry
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1922420108
PECOS PAC ID: 1254551914
Enrollment ID: O20140930002190
Provider NameTanya Optometry Corporation
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1881081404
PECOS PAC ID: 7113238544
Enrollment ID: O20150625001642

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 Lethuy T 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 Lethuy T Nguyen, OD
553 N Mountain Ave,
Upland, CA 91786-5016

Ph: (909) 985-2876
Dr Lethuy T Nguyen, OD
553 N Mountain Ave,
Upland, CA 91786-5016

Ph: (909) 985-2876

Reviews and Comments


Optometrist in Upland, CA

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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.