Stephen Marietta, M.D.

NPI 1053301606ActiveIndividual· Internal Medicine, Interventional Cardiology· Knoxville, TN

Internal Medicine, Interventional Cardiology (M.D.) in Knoxville, Tennessee, trained at Creighton University School of Medicine (class of 1979). Their prescriptions cost Medicare Part D more than their services did: $291,106 for 1,259 claims, against $49,340 paid for services in 2024. Heartflow, Inc. reported $16.44 in payments in 2025, mostly food and beverage.

Overview

NPI	1053301606
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Oct 25, 2005
Last updated in NPPES	Aug 17, 2020
Certified by provider	Aug 17, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Interventional Cardiology Primary	207RI0011X	16657	TN
Internal Medicine, Cardiovascular Disease	207RC0000X	16657	TN

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Interventional Cardiology (TN)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	366
Services billed	1,014 across 21 procedure codes
Paid by Medicare	$49,340

Part D prescriptions in 2024

Prescriptions (claims)	1,259 · 2,936 30-day fills
Patients	330
Total drug cost	$291,106
Generic share	76% of claims

Medicare sources and data years

Education and affiliations

Medical school	Creighton University School of Medicine
Graduation year	1979
Medicare specialty	Interventional Cardiology
Secondary specialties	Cardiovascular Disease (Cardiology)