Mary Mulcahy, MD

NPI 1306870837ActiveIndividual· Internal Medicine, Medical Oncology· Chicago, IL

Internal Medicine, Medical Oncology (MD) in Chicago, Illinois, trained at Un of California, Irvine, College of Medicine (class of 1993). In 2024 Medicare paid $4,007,001 for 537 patients, and Part D covered 408 of their prescriptions, 76% of them generic. Intera Oncology, Inc was the largest of 2 companies reporting payments in 2025, $165.49 in all, mostly food and beverage.

Overview

NPI	1306870837
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jul 10, 2006
Last updated in NPPES	Jul 17, 2009

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Medical Oncology Primary	207RX0202X	036096205	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 - Medical Oncology (IL)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	537
Services billed	187,616 across 153 procedure codes
Paid by Medicare	$4,007,001

Part D prescriptions in 2024

Prescriptions (claims)	408 · 517 30-day fills
Patients	93
Total drug cost	$382,938
Generic share	76% of claims

Medicare sources and data years

Education and affiliations

Medical school	Un of California, Irvine, College of Medicine
Graduation year	1993
Medicare specialty	Medical Oncology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth