Lawrence Langan, DO

NPI 1053391482ActiveIndividual· Internal Medicine, Gastroenterology· Staten Island, NY

Internal Medicine, Gastroenterology (DO) in Staten Island, New York, trained at New York College of Osteo Medicine of New York Institute of Technology (class of 1991). Their prescriptions cost Medicare Part D more than their services did: $309,792 for 2,066 claims, against $179,810 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 13 companies reporting payments in 2025, $976.18 in all, mostly food and beverage.

Overview

NPI	1053391482
Status	Active
Entity type	Individual
Credential	DO
Sole proprietor	No
NPI issued	Jan 20, 2006
Last updated in NPPES	May 15, 2008

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	1933851	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	502
Services billed	1,012 across 16 procedure codes
Paid by Medicare	$179,810

Part D prescriptions in 2024

Prescriptions (claims)	2,066 · 3,279 30-day fills
Patients	449
Total drug cost	$309,792
Generic share	93% of claims

Medicare sources and data years

Education and affiliations

Medical school	New York College of Osteo Medicine of New York Institute of Technology
Graduation year	1991
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth