Gregory Ashton Bassmann, MD

NPI 1174781611ActiveIndividual· Internal Medicine, Pulmonary Disease· Baltimore, MD

Internal Medicine, Pulmonary Disease (MD) in Baltimore, Maryland, trained at New York Medical College (class of 2008). Their prescriptions cost Medicare Part D more than their services did: $382,148 for 1,054 claims, against $74,683 paid for services in 2024. Astrazeneca Pharmaceuticals LP reported $34.86 in payments in 2025, mostly food and beverage.

Overview

NPI	1174781611
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 31, 2008
Last updated in NPPES	Jul 19, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Pulmonary Disease Primary	207RP1001X	D77581	MD

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 - Pulmonary Disease (MD)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	432
Services billed	947 across 24 procedure codes
Paid by Medicare	$74,683

Part D prescriptions in 2024

Prescriptions (claims)	1,054 · 1,579 30-day fills
Patients	203
Total drug cost	$382,148

Medicare sources and data years

Education and affiliations

Medical school	New York Medical College
Graduation year	2008
Medicare specialty	Pulmonary Disease
Secondary specialties	Critical Care (Intensivists)
Telehealth	Offers telehealth