William P. Fay, M.D.

NPI 1467404814ActiveIndividual· Internal Medicine, Cardiovascular Disease· Columbia, MO

Internal Medicine, Cardiovascular Disease (M.D.) in Columbia, Missouri, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 1982). Their prescriptions cost Medicare Part D more than their services did: $148,254 for 974 claims, against $35,275 paid for services in 2024. Medtronic, Inc. was the largest of 2 companies reporting payments in 2025, $80.79 in all, mostly food and beverage.

Overview

NPI	1467404814
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	May 16, 2006
Last updated in NPPES	Sep 14, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	2004036072	MO

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) (MO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	1,743
Services billed	2,707 across 17 procedure codes
Paid by Medicare	$35,275

Part D prescriptions in 2024

Prescriptions (claims)	974 · 1,784 30-day fills
Patients	97
Total drug cost	$148,254
Generic share	78% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb)
Graduation year	1982
Medicare specialty	Cardiovascular Disease (Cardiology)
Secondary specialties	Internal Medicine