Melinda Ellen Stack, M.D.

NPI 1215223490ActiveIndividual· Colon & Rectal Surgery· Chicago, IL

Colon & Rectal Surgery (M.D.) in Chicago, Illinois, trained at University of Chicago, Pritzker School of Medicine (class of 2011). 146 Medicare patients in 2024, $45,935 paid; nearly all of their 206 Part D prescriptions were generic (93%). Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2024, $1,302 in all, mostly travel and lodging.

Overview

NPI	1215223490
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 25, 2011
Last updated in NPPES	Oct 14, 2021
Certified by provider	Oct 14, 2021

Specialties and licenses

Taxonomy	Code	License	State
Colon & Rectal Surgery Primary	208C00000X	036135948	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 - Colorectal Surgery (Proctology) (MN)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	146
Services billed	307 across 51 procedure codes
Paid by Medicare	$45,935

Part D prescriptions in 2024

Prescriptions (claims)	206 · 216 30-day fills
Patients	151
Total drug cost	$2,838
Generic share	93% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Chicago, Pritzker School of Medicine
Graduation year	2011
Medicare specialty	Colorectal Surgery (Proctology)
Secondary specialties	General Surgery