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Brian Leo Loc, D.O.

NPI 1033599691ActiveIndividual· Internal Medicine, Cardiovascular Disease· Dubuque, IA

Internal Medicine, Cardiovascular Disease (D.O.) with Medical Associates Clinic P C, practicing in Dubuque, Iowa. Their prescriptions cost Medicare Part D more than their services did: $619,535 for 5,894 claims, against $138,556 paid for services in 2024. Medtronic, Inc. was the largest of 10 companies reporting payments in 2025, $1,080 in all, mostly food and beverage. Lists Guttenberg Municipal Hospital and 4 other hospitals as hospital affiliations.

Overview

NPI1033599691
StatusActive
Entity typeIndividual
CredentialD.O.
Sole proprietorNo
NPI issuedJun 8, 2015
Last updated in NPPESJun 27, 2022
Certified by providerJun 27, 2022

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Cardiovascular Disease Primary207RC0000XDO-06021IA

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 - Cardiovascular Disease (Cardiology) (IA); Practitioner - Cardiovascular Disease (Cardiology) (WI)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients642
Services billed3,039 across 107 procedure codes
Paid by Medicare$138,556

Part D prescriptions in 2024

Prescriptions (claims)5,894 · 10,884 30-day fills
Patients593
Total drug cost$619,535
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Graduation year2015
Medicare specialtyCardiovascular Disease (Cardiology)

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,080 · 22 payments from 10 companies
  • 2024$311.55 · 13 payments from 9 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$603.81 · 18 payments
  • Travel and Lodging$475.69 · 4 payments

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

Other cardiologists in Dubuque

All cardiologists in Iowa