Jeffrey E. Mathews, MD

NPI 1285635656ActiveIndividual· Internal Medicine, Gastroenterology· Chesterfield, MO

Internal Medicine, Gastroenterology (MD) in Chesterfield, Missouri, trained at University of Missouri, Kansas City, School of Medicine (class of 1988). Their prescriptions cost Medicare Part D more than their services did: $1,790,897 for 2,558 claims, against $251,979 paid for services in 2024. Aimmune Therapeutics, Inc. was the largest of 4 companies reporting payments in 2025, $379.68 in all, mostly food and beverage.

Overview

NPI	1285635656
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Aug 9, 2005
Last updated in NPPES	Oct 21, 2026
Certified by provider	Oct 21, 2026

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	R7G14	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 - Gastroenterology (MO)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	584
Services billed	7,869 across 48 procedure codes
Paid by Medicare	$251,979

Part D prescriptions in 2024

Prescriptions (claims)	2,558 · 5,320 30-day fills
Patients	744
Total drug cost	$1,790,897
Generic share	81% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Missouri, Kansas City, School of Medicine
Graduation year	1988
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine