C Gerard Petersen, MD

NPI 1285684183ActiveIndividual· Internal Medicine, Pulmonary Disease· Allentown, PA

Internal Medicine, Pulmonary Disease (MD) in Allentown, Pennsylvania, trained at Tufts University School of Medicine (class of 1996). Their prescriptions cost Medicare Part D more than their services did: $820,416 for 1,172 claims, against $60,057 paid for services in 2024. Lilly USA, LLC was the largest of 2 companies reporting payments in 2025, $130.78 in all, mostly food and beverage.

Overview

NPI	1285684183
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 11, 2006
Last updated in NPPES	Mar 22, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Pulmonary Disease Primary	207RP1001X	MD073487L	PA

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 (PA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	653
Services billed	1,335 across 45 procedure codes
Paid by Medicare	$60,057

Part D prescriptions in 2024

Prescriptions (claims)	1,172 · 1,554 30-day fills
Patients	170
Total drug cost	$820,416
Generic share	49% of claims

Medicare sources and data years

Education and affiliations

Medical school	Tufts University School of Medicine
Graduation year	1996
Medicare specialty	Pulmonary Disease
Secondary specialties	Critical Care (Intensivists)
Telehealth	Offers telehealth