Frances Y. Chang, MD

NPI 1316996960ActiveIndividual· Internal Medicine· Princeton, NJ

Internal Medicine (MD) in Princeton, New Jersey, trained at State University of New York at Stony Brook, School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $385,756 for 6,224 claims, against $244,324 paid for services in 2024. Boston Scientific Corporation was the largest of 2 companies reporting payments in 2025, $384.04 in all, mostly food and beverage.

Overview

NPI	1316996960
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 10, 2006
Last updated in NPPES	Dec 20, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	25MA07204300	NJ

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 - Internal Medicine (NJ)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	459
Services billed	13,453 across 50 procedure codes
Paid by Medicare	$244,324

Part D prescriptions in 2024

Prescriptions (claims)	6,224 · 15,579 30-day fills
Patients	662
Total drug cost	$385,756
Generic share	91% of claims

Medicare sources and data years

Education and affiliations

Medical school	State University of New York at Stony Brook, School of Medicine
Graduation year	1999
Medicare specialty	Internal Medicine
Secondary specialties	Geriatric Medicine
Telehealth	Offers telehealth