Joseph Richard Mackey, M.D.

NPI 1457615577ActiveIndividual· Internal Medicine· Peoria, IL

Internal Medicine (M.D.) in Peoria, Illinois, trained at University of Kansas School of Med (Kc/Wich/Sal) (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $1,903,511 for 140 claims, against $16,507 paid for services in 2024. Digestive Care, Inc. reported $113.15 in payments in 2025, mostly food and beverage.

Overview

NPI	1457615577
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	Jul 3, 2012
Last updated in NPPES	Jul 3, 2012

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	125.061794	IL

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 (IL)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	61
Services billed	169 across 5 procedure codes
Paid by Medicare	$16,507

Part D prescriptions in 2024

Prescriptions (claims)	140 · 174 30-day fills
Patients	21
Total drug cost	$1,903,511

Medicare sources and data years

Education and affiliations

Medical school	University of Kansas School of Med (Kc/Wich/Sal)
Graduation year	2012
Medicare specialty	Internal Medicine
Secondary specialties	Pediatric Medicine