Gregory B. Carlson, MD

NPI 1386694438ActiveIndividual· Family Medicine· Denison, TX

Family Medicine (MD) in Denison, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1990). Their prescriptions cost Medicare Part D more than their services did: $843,499 for 14,147 claims, against $241,612 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2024, $309.71 in all, mostly food and beverage.

Overview

NPI	1386694438
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 11, 2006
Last updated in NPPES	Jan 26, 2018

Specialties and licenses

Taxonomy	Code	License	State
Family Medicine Primary	207Q00000X	K0666	TX

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Family Practice (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	432
Services billed	9,697 across 87 procedure codes
Paid by Medicare	$241,612

Part D prescriptions in 2024

Prescriptions (claims)	14,147 · 30,682 30-day fills
Patients	724
Total drug cost	$843,499
Generic share	92% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Southwestern Medical School at Dallas
Graduation year	1990
Medicare specialty	Family Practice
Telehealth	Offers telehealth