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May S. Fan, M.D.

NPI 1457462939ActiveIndividual· Family Medicine· Sisters, OR

Family Medicine (M.D.) in Sisters, Oregon, trained at Un of California, Irvine, College of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $480,621 for 6,565 claims, against $140,604 paid for services in 2024. Glaxosmithkline, LLC. reported $24.09 in payments in 2025, mostly food and beverage.

Overview

NPI1457462939
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedAug 31, 2006
Last updated in NPPESJan 22, 2022
Certified by providerJan 22, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Family Medicine Primary207Q00000XMD16867OR

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 - Family Practice (OR)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients395
Services billed2,497 across 93 procedure codes
Paid by Medicare$140,604

Part D prescriptions in 2024

Prescriptions (claims)6,565 · 16,530 30-day fills
Patients633
Total drug cost$480,621
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUn of California, Irvine, College of Medicine
Graduation year1987
Medicare specialtyFamily Practice

Medical group

Hospital affiliation

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$24.09 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Glaxosmithkline, LLC.$24.091

What the 2025 payments were for

  • Food and Beverage$24.09 · 1 payment

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

Other family medicine physicians in Sisters

All family medicine physicians in Oregon