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Marco S. Mazzella, MD

NPI 1033162219ActiveIndividual· Internal Medicine, Cardiovascular Disease· Grandview, MO

Internal Medicine, Cardiovascular Disease (MD) in Grandview, Missouri, trained at University of Missouri, Kansas City, School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $416,261 for 3,207 claims, against $102,791 paid for services in 2024. Amgen Inc. was the largest of 18 companies reporting payments in 2025, $1,306 in all, mostly food and beverage.

Overview

NPI1033162219
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMay 18, 2006
Last updated in NPPESJan 4, 2022

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 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 - Cardiovascular Disease (Cardiology) (KS); Practitioner - Cardiovascular Disease (Cardiology) (MO)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,130
Services billed2,152 across 49 procedure codes
Paid by Medicare$102,791

Part D prescriptions in 2024

Prescriptions (claims)3,207 · 8,393 30-day fills
Patients587
Total drug cost$416,261
Generic share89% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Missouri, Kansas City, School of Medicine
Graduation year1998
Medicare specialtyCardiovascular Disease (Cardiology)

Medical group

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,306 · 61 payments from 18 companies
  • 2024$1,341 · 66 payments from 21 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,306 · 61 payments

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