Dr Diana Nguyen, OD - Medicare Optometrist in Livermore, CA

Dr Diana Nguyen, OD is a medicare enrolled "Optometrist" provider in Livermore, California. She went to Southern California College Of Optometry and graduated in 2019 and has 7 years of diverse experience with area of expertise as Optometry. Her current practice location is 4423 First St, Livermore, California. You can reach out to her office (for appointments etc.) via phone at (925) 292-0025.

Dr Diana Nguyen is licensed to practice in California (license number 34790) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1659955201.

Contact Information

Dr Diana Nguyen, OD
4423 First St,
Livermore, CA 94551-4915
(925) 292-0025
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameDr Diana Nguyen
GenderFemale
SpecialityOptometry
Experience7 Years
Location4423 First St, Livermore, California
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Diana Nguyen attended and graduated from Southern California College Of Optometry in 2019
  NPI Data:
  • NPI Number: 1659955201
  • Provider Enumeration Date: 05/10/2021
  • Last Update Date: 05/10/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 7618461195
  • Enrollment ID: I20251211001927

Medical Identifiers

Medical identifiers for Dr Diana Nguyen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1659955201NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 34790 (California)Primary

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 Diana 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 Diana Nguyen, OD
4423 First St,
Livermore, CA 94551-4915

Ph: () -
Dr Diana Nguyen, OD
4423 First St,
Livermore, CA 94551-4915

Ph: (925) 292-0025

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.