Michael Leroy Landrum, M.D.

NPI 1932280104ActiveIndividual· Internal Medicine, Infectious Disease· Green Bay, WI

Internal Medicine, Infectious Disease (M.D.) in Green Bay, Wisconsin, trained at University of Missouri, Columbia School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $1,023,037 for 490 claims, against $10,464 paid for services in 2024. Astellas Pharma US Inc was the largest of 2 companies reporting payments in 2025, $38.83 in all, mostly food and beverage.

Overview

NPI	1932280104
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Oct 17, 2006
Last updated in NPPES	Jan 20, 2023
Certified by provider	Jan 20, 2023

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Infectious Disease Primary	207RI0200X	56939	WI
Internal Medicine, Infectious Disease	207RI0200X	01054143A	IN
Internal Medicine, Infectious Disease	207RI0200X	4301503113	MI

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 - Infectious Disease (MI); Practitioner - Infectious Disease (WI)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	65
Services billed	124 across 14 procedure codes
Paid by Medicare	$10,464

Part D prescriptions in 2024

Prescriptions (claims)	490 · 544 30-day fills
Patients	46
Total drug cost	$1,023,037
Generic share	32% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Missouri, Columbia School of Medicine
Graduation year	1999
Medicare specialty	Infectious Disease
Secondary specialties	Internal Medicine