John Jeffrey Marshall, MD

NPI 1184676413ActiveIndividual· Internal Medicine, Interventional Cardiology· Atlanta, GA

Internal Medicine, Interventional Cardiology (MD) in Atlanta, Georgia, trained at University of Florida College of Medicine (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $493,183 for 2,623 claims, against $43,166 paid for services in 2024. Scpharmaceuticals Inc. was the largest of 14 companies reporting payments in 2025, $1,024 in all, mostly food and beverage.

Overview

NPI	1184676413
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 16, 2006
Last updated in NPPES	Feb 26, 2021
Certified by provider	Feb 26, 2021

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Interventional Cardiology Primary	207RI0011X	034895	GA
Internal Medicine, Cardiovascular Disease	207RC0000X	034895	GA

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 (GA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	349
Services billed	730 across 21 procedure codes
Paid by Medicare	$43,166

Part D prescriptions in 2024

Prescriptions (claims)	2,623 · 5,912 30-day fills
Patients	381
Total drug cost	$493,183
Generic share	81% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Florida College of Medicine
Graduation year	1982
Medicare specialty	Interventional Cardiology
Secondary specialties	Cardiovascular Disease (Cardiology)