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Thomas G. Castellano, M.D.

NPI 1912980293ActiveIndividual· General Practice· Loveland, CO

General Practice (M.D.) in Loveland, Colorado, trained at Medical College of Wisconsin (class of 1992). Their prescriptions cost Medicare Part D more than their services did: $297,040 for 2,616 claims, against $15,268 paid for services in 2024. Biogen, Inc. reported $20.56 in payments in 2025, mostly food and beverage.

Overview

NPI1912980293
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedNov 21, 2005
Last updated in NPPESDec 27, 2023
Certified by providerDec 27, 2023

Specialties and licenses

TaxonomyCodeLicenseState
General Practice Primary208D00000X0035014CO
Emergency Medicine207P00000X35014CO

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)Enrolled Practitioner - General Practice (CO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients42
Services billed219 across 20 procedure codes
Paid by Medicare$15,268

Part D prescriptions in 2024

Prescriptions (claims)2,616 · 2,641 30-day fills
Patients155
Total drug cost$297,040
Generic share82% of claims

Medicare sources and data years

Education and affiliations

Medical schoolMedical College of Wisconsin
Graduation year1992
Medicare specialtyEmergency Medicine

Medical groups

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$20.56 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Biogen, Inc.$20.561

What the 2025 payments were for

  • Food and Beverage$20.56 · 1 payment

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

Other General Practice providers in Loveland

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