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Phuong-Chi Phan, M.D.

NPI 1063478402ActiveIndividual· Internal Medicine· Westminster, CA

Internal Medicine (M.D.) in Westminster, California, trained at University of California, Davis School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $181,776 for 3,114 claims, against $23,848 paid for services in 2024.

Overview

NPI1063478402
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorYes
NPI issuedApr 25, 2006
Last updated in NPPESJan 29, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XG76835CA

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 - Internal Medicine (CA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients68
Services billed435 across 11 procedure codes
Paid by Medicare$23,848

Part D prescriptions in 2024

Prescriptions (claims)3,114 · 7,221 30-day fills
Patients186
Total drug cost$181,776
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of California, Davis School of Medicine
Graduation year1991
Medicare specialtyInternal Medicine

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

Other internal medicine physicians in Westminster

All 74 internal medicine physicians in Westminster · All internal medicine physicians in California