John P. Bartlett, M.D.

NPI 1821090994ActiveIndividual· Internal Medicine· Marquette, MI

Internal Medicine (M.D.) in Marquette, Michigan, trained at Michigan State University College of Human Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $631,914 for 6,080 claims, against $58,849 paid for services in 2024. Amgen Inc. was the largest of 2 companies reporting payments in 2025, $85.67 in all, mostly food and beverage.

Overview

NPI	1821090994
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 2, 2005
Last updated in NPPES	Jul 13, 2026
Reactivated	Apr 5, 2006

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	4301074280	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 - Internal Medicine (MI)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	191
Services billed	1,932 across 58 procedure codes
Paid by Medicare	$58,849

Part D prescriptions in 2024

Prescriptions (claims)	6,080 · 14,876 30-day fills
Patients	494
Total drug cost	$631,914
Generic share	88% of claims

Medicare sources and data years

Education and affiliations

Medical school	Michigan State University College of Human Medicine
Graduation year	1999
Medicare specialty	Internal Medicine
Secondary specialties	Pediatric Medicine