Thomas J. Harris, M.D.

NPI 1992789291ActiveIndividual· Internal Medicine, Hematology & Oncology· Waco, TX

Internal Medicine, Hematology & Oncology (M.D.) in Waco, Texas, trained at University of Texas Medical School at Houston (class of 2003). In 2024 Medicare paid $2,944,337 for 489 patients, and Part D covered 1,421 of their prescriptions, 74% of them generic. Pfizer Inc. was the largest of 3 companies reporting payments in 2025, $645.90 in all, mostly honoraria.

Overview

NPI	1992789291
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Dec 1, 2005
Last updated in NPPES	Sep 4, 2012

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Hematology & Oncology Primary	207RH0003X	0101245391	VA
Internal Medicine	207R00000X	33401	AZ

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 - Hematology/Oncology (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	489
Services billed	140,178 across 134 procedure codes
Paid by Medicare	$2,944,337

Part D prescriptions in 2024

Prescriptions (claims)	1,421 · 1,927 30-day fills
Patients	252
Total drug cost	$4,002,885
Generic share	74% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Medical School at Houston
Graduation year	2003
Medicare specialty	Hematology/Oncology
Secondary specialties	Internal Medicine, Medical Oncology
Telehealth	Offers telehealth