Louis Philipson

NPI 1093877540ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Chicago, IL

Internal Medicine, Endocrinology, Diabetes & Metabolism in Chicago, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $588,332 for 922 claims, against $16,888 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2025, $15,060 in all, mostly consulting fees.

Overview

NPI	1093877540
Status	Active
Entity type	Individual
Sole proprietor	No
NPI issued	Dec 14, 2006
Last updated in NPPES	Oct 24, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Endocrinology, Diabetes & Metabolism Primary	207RE0101X	036079044	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 - Endocrinology (IL)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	91
Services billed	280 across 16 procedure codes
Paid by Medicare	$16,888

Part D prescriptions in 2024

Prescriptions (claims)	922 · 2,262 30-day fills
Patients	99
Total drug cost	$588,332
Generic share	28% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Chicago, Pritzker School of Medicine
Graduation year	1986
Medicare specialty	Endocrinology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth