David S. Harper, M.D.

NPI 1174550834ActiveIndividual· Internal Medicine, Cardiovascular Disease· Dallas, TX

Internal Medicine, Cardiovascular Disease (M.D.) in Dallas, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $1,418,643 for 5,510 claims, against $333,822 paid for services in 2024. Heartflow, Inc. was the largest of 3 companies reporting payments in 2025, $147.51 in all, mostly food and beverage.

Overview

NPI	1174550834
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 27, 2006
Last updated in NPPES	Sep 19, 2014

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	M4137	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 - Cardiovascular Disease (Cardiology) (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	1,494
Services billed	5,359 across 50 procedure codes
Paid by Medicare	$333,822

Part D prescriptions in 2024

Prescriptions (claims)	5,510 · 14,477 30-day fills
Patients	919
Total drug cost	$1,418,643
Generic share	78% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Southwestern Medical School at Dallas
Graduation year	2000
Medicare specialty	Cardiovascular Disease (Cardiology)
Telehealth	Offers telehealth