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Keith T. Ryan, MD

NPI 1366416869ActiveIndividual· Internal Medicine· Flagstaff, AZ

Internal Medicine (MD) in Flagstaff, Arizona, trained at University of Missouri, Columbia School of Medicine (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $673,671 for 6,329 claims, against $177,706 paid for services in 2024. Amgen Inc. reported $21.58 in payments in 2025, mostly food and beverage.

Overview

NPI1366416869
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorYes
NPI issuedFeb 14, 2006
Last updated in NPPESMar 1, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X22530AZ

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 (AZ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients574
Services billed2,675 across 72 procedure codes
Paid by Medicare$177,706

Part D prescriptions in 2024

Prescriptions (claims)6,329 · 16,431 30-day fills
Patients569
Total drug cost$673,671
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Missouri, Columbia School of Medicine
Graduation year1991
Medicare specialtyInternal Medicine
Secondary specialtiesCardiovascular Disease (Cardiology)
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$21.58 · 1 payment from 1 company
  • 2024$30.34 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Amgen Inc.$21.581

What the 2025 payments were for

  • Food and Beverage$21.58 · 1 payment

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

Other internal medicine physicians in Flagstaff

All 40 internal medicine physicians in Flagstaff · All internal medicine physicians in Arizona