Mark J. Hupert, M.D.

NPI 1265407761ActiveIndividual· Internal Medicine, Infectious Disease· Fort Worth, TX

Internal Medicine, Infectious Disease (M.D.) in Fort Worth, Texas, trained at University of Pittsburgh School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $2,253,735 for 1,403 claims, against $415,320 paid for services in 2024. Viiv Healthcare Company was the largest of 15 companies reporting payments in 2025, $1,151 in all, mostly food and beverage.

Overview

NPI	1265407761
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Feb 20, 2006
Last updated in NPPES	Jan 21, 2013

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Infectious Disease Primary	207RI0200X	L1619	TX

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 - Infectious Disease (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	460
Services billed	41,498 across 49 procedure codes
Paid by Medicare	$415,320

Part D prescriptions in 2024

Prescriptions (claims)	1,403 · 1,622 30-day fills
Patients	228
Total drug cost	$2,253,735
Generic share	67% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Pittsburgh School of Medicine
Graduation year	1993
Medicare specialty	Infectious Disease
Secondary specialties	Internal Medicine