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Andrew Joseph Ahmann, MD

NPI 1891701405ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Portland, OR

Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Portland, Oregon, licensed in OR, with an NPI issued in August 2006. Their prescriptions cost Medicare Part D more than their services did: $723,578 for 1,514 claims, against $13,242 paid for services in 2024. Medtronic, Inc. reported $241.03 in payments in 2025, mostly food and beverage.

Overview

NPI1891701405
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedAug 1, 2006
Last updated in NPPESJul 8, 2007

Specialties and licenses

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

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

Medicare

Enrollment (PECOS)Not in the public enrollment file of Oct 1, 2026
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients84
Services billed220 across 12 procedure codes
Paid by Medicare$13,242

Part D prescriptions in 2024

Prescriptions (claims)1,514 · 3,626 30-day fills
Patients138
Total drug cost$723,578
Generic share42% of claims

Medicare sources and data years

Industry payments (Open Payments)

  • 2025$241.03 · 2 payments from 1 company
  • 2024$6,408 · 11 payments from 2 companies

Top paying companies in 2025

CompanyAmountPayments
Medtronic, Inc.$241.032

What the 2025 payments were for

  • Food and Beverage$228.61 · 1 payment
  • Travel and Lodging$12.42 · 1 payment

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

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