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Tom G. Matzakos, MD

NPI 1619004629ActiveIndividual· Internal Medicine, Gastroenterology· Lone Tree, CO

Internal Medicine, Gastroenterology (MD) in Lone Tree, Colorado, trained at University of Colorado School of Medicine, Denver (class of 1998). Part D covered 831 prescriptions written in 2024, 92% of them generic.

Overview

NPI1619004629
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedFeb 27, 2007
Last updated in NPPESJun 22, 2021
Certified by providerJun 22, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Gastroenterology Primary207RG0100X42182CO

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 - Gastroenterology (CO)

Part D prescriptions in 2024

Prescriptions (claims)831 · 1,385 30-day fills
Patients496
Total drug cost$143,702
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Colorado School of Medicine, Denver
Graduation year1998
Medicare specialtyGastroenterology
Secondary specialtiesInternal Medicine

Medical group

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 Internal Medicine, Gastroenterology providers in Lone Tree

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