John Farmer, MD

NPI 1033299383ActiveIndividual· Internal Medicine, Cardiovascular Disease· Houston, TX

Internal Medicine, Cardiovascular Disease (MD) in Houston, Texas, trained at University of Texas Southwestern Medical School at Dallas (class of 1974). Their prescriptions cost Medicare Part D more than their services did: $519,226 for 3,708 claims, against $86,146 paid for services in 2024. E.R. Squibb & Sons, L.L.C. reported $17.86 in payments in 2025, mostly food and beverage.

Overview

NPI	1033299383
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Oct 17, 2006
Last updated in NPPES	Nov 13, 2020
Certified by provider	Nov 13, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	E6344	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 - Cardiovascular Disease (Cardiology) (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	668
Services billed	1,712 across 20 procedure codes
Paid by Medicare	$86,146

Part D prescriptions in 2024

Prescriptions (claims)	3,708 · 9,849 30-day fills
Patients	472
Total drug cost	$519,226
Generic share	89% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Southwestern Medical School at Dallas
Graduation year	1974
Medicare specialty	Cardiovascular Disease (Cardiology)
Secondary specialties	Internal Medicine