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Peter Brendan Cahill, MD

NPI 1144389123ActiveIndividual· Internal Medicine, Geriatric Medicine· Denver, CO

Internal Medicine, Geriatric Medicine (MD) in Denver, Colorado, licensed in CO, with an NPI issued in December 2006. Part D covered 693 prescriptions written in 2024, 88% of them generic.

Overview

NPI1144389123
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedDec 6, 2006
Last updated in NPPESJun 4, 2026
Certified by providerJun 4, 2026

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Geriatric Medicine Primary207RG0300X32931CO
Internal Medicine207R00000XDR.0032931CO

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 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Geriatric Medicine (CO)

Part D prescriptions in 2024

Prescriptions (claims)693 · 1,325 30-day fills
Patients224
Total drug cost$31,593
Generic share88% of claims

Medicare sources and data years

Industry payments (Open Payments)

None reported for 2025 or 2024.

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

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