Christopher O. Gulley, M.D.

NPI 1265790612ActiveIndividual· Internal Medicine· Amarillo, TX

Internal Medicine (M.D.) in Amarillo, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $549,061 for 5,098 claims, against $306,913 paid for services in 2024. Glaxosmithkline, LLC. was the largest of 9 companies reporting payments in 2025, $479.07 in all, mostly food and beverage.

Overview

NPI	1265790612
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Apr 23, 2012
Last updated in NPPES	May 19, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	Q4121	TX
Student in an Organized Health Care Education/Training Program	390200000X	—	—

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 - Internal Medicine (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	456
Services billed	10,025 across 134 procedure codes
Paid by Medicare	$306,913

Part D prescriptions in 2024

Prescriptions (claims)	5,098 · 11,304 30-day fills
Patients	450
Total drug cost	$549,061
Generic share	87% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Southwestern Medical School at Dallas
Graduation year	2012
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth