Gerard B. Hayes, MD

NPI 1942275169ActiveIndividual· Internal Medicine, Pulmonary Disease· Brighton, MA

Internal Medicine, Pulmonary Disease (MD) in Brighton, Massachusetts, trained at Tufts University School of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $2,088,829 for 3,087 claims, against $200,951 paid for services in 2024. Grifols USA, LLC reported $62.53 in payments in 2025, mostly food and beverage.

Overview

NPI	1942275169
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Feb 21, 2006
Last updated in NPPES	Oct 20, 2011

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Pulmonary Disease Primary	207RP1001X	79628	MA

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 - Critical Care (Intensivists) (MA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	829
Services billed	2,587 across 33 procedure codes
Paid by Medicare	$200,951

Part D prescriptions in 2024

Prescriptions (claims)	3,087 · 5,560 30-day fills
Patients	613
Total drug cost	$2,088,829
Generic share	36% of claims

Medicare sources and data years

Education and affiliations

Medical school	Tufts University School of Medicine
Graduation year	1983
Medicare specialty	Critical Care (Intensivists)
Secondary specialties	Pulmonary Disease
Telehealth	Offers telehealth