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Tuyet-Mai M. Phan, M.D.

NPI 1710900477ActiveIndividual· Ophthalmology· Westminster, CA

Ophthalmology (M.D.) in Westminster, California, trained at Harvard Medical School (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $2,456,297 for 12,553 claims, against $314,717 paid for services in 2024. Amgen Inc. was the largest of 7 companies reporting payments in 2025, $636.37 in all, mostly food and beverage.

Overview

NPI1710900477
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedJul 25, 2006
Last updated in NPPESJan 27, 2021
Certified by providerJan 27, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000XG57670CA

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Ophthalmology (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,136
Services billed3,334 across 29 procedure codes
Paid by Medicare$314,717

Part D prescriptions in 2024

Prescriptions (claims)12,553 · 17,479 30-day fills
Patients1,347
Total drug cost$2,456,297
Generic share52% of claims

Medicare sources and data years

Education and affiliations

Medical schoolHarvard Medical School
Graduation year1981
Medicare specialtyOphthalmology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$636.37 · 28 payments from 7 companies
  • 2024$306.18 · 13 payments from 2 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$636.37 · 28 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

Other ophthalmologists in Westminster

All 18 ophthalmologists in Westminster · All ophthalmologists in California