Mary Ann Patricia McMahon, M.D.

NPI 1699773416ActiveIndividual· Internal Medicine· Cherry Hill, NJ

Internal Medicine (M.D.) in Cherry Hill, New Jersey, trained at Jefferson Medical College of Thomas Jefferson University (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $317,116 for 3,148 claims, against $64,773 paid for services in 2024. Novo Nordisk Inc reported $107.63 in payments in 2025, mostly food and beverage.

Overview

NPI	1699773416
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	Jul 14, 2005
Last updated in NPPES	Oct 2, 2020
Certified by provider	Oct 2, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	25MA073505	NJ

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 (NJ)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	212
Services billed	649 across 26 procedure codes
Paid by Medicare	$64,773

Part D prescriptions in 2024

Prescriptions (claims)	3,148 · 7,431 30-day fills
Patients	267
Total drug cost	$317,116
Generic share	87% of claims

Medicare sources and data years

Education and affiliations

Medical school	Jefferson Medical College of Thomas Jefferson University
Graduation year	2000
Medicare specialty	Internal Medicine
Telehealth	Offers telehealth