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Bryan John Feyen, DO

NPI 1811042310ActiveIndividual· Internal Medicine, Gastroenterology· Ames, IA

Internal Medicine, Gastroenterology (DO) with Avera McKennan, practicing in Ames, Iowa. Their prescriptions cost Medicare Part D more than their services did: $545,484 for 1,128 claims, against $69,146 paid for services in 2024. Lists Avera Holy Family Hospital and 4 other hospitals as hospital affiliations.

Overview

NPI1811042310
StatusActive
Entity typeIndividual
CredentialDO
Sole proprietorNo
NPI issuedJan 24, 2007
Last updated in NPPESFeb 9, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X03430IA
Internal Medicine, Gastroenterology207RG0100XOS12937FL

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 - Gastroenterology (SD)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients476
Services billed754 across 38 procedure codes
Paid by Medicare$69,146

Part D prescriptions in 2024

Prescriptions (claims)1,128 · 1,372 30-day fills
Patients492
Total drug cost$545,484
Generic share83% of claims

Medicare sources and data years

Education and affiliations

Graduation year1998
Medicare specialtyGastroenterology

Medical group

Hospital affiliations

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 gastroenterologists in Ames

All gastroenterologists in Iowa