Anthony Massimillo, M.D.

NPI 1043277692ActiveIndividual· Internal Medicine, Gastroenterology· Mineola, NY

Internal Medicine, Gastroenterology (M.D.) in Mineola, New York, trained at Loyola University of Chicago, Stritch School of Medicine (class of 1985). Their prescriptions cost Medicare Part D more than their services did: $431,042 for 1,933 claims, against $66,522 paid for services in 2024. Abbvie Inc. reported $124.27 in payments in 2025, mostly food and beverage.

Overview

NPI	1043277692
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Apr 27, 2006
Last updated in NPPES	Jan 27, 2021
Certified by provider	Jan 27, 2021

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	169701	NY

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 - Gastroenterology (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	309
Services billed	520 across 15 procedure codes
Paid by Medicare	$66,522

Part D prescriptions in 2024

Prescriptions (claims)	1,933 · 3,855 30-day fills
Patients	522
Total drug cost	$431,042
Generic share	89% of claims

Medicare sources and data years

Education and affiliations

Medical school	Loyola University of Chicago, Stritch School of Medicine
Graduation year	1985
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine