Joanne M. Matthews, MD

NPI 1649217142ActiveIndividual· Internal Medicine, Gastroenterology· Greenville, NC

Internal Medicine, Gastroenterology (MD) in Greenville, North Carolina, trained at State University of New York Downstate Medical Center (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $860,433 for 1,614 claims, against $318,797 paid for services in 2024. Madrigal Pharmaceuticals was the largest of 3 companies reporting payments in 2025, $211.22 in all, mostly food and beverage.

Overview

NPI	1649217142
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jun 1, 2006
Last updated in NPPES	Oct 9, 2014

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	0090-00759	NC

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Gastroenterology (NC)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	597
Services billed	19,860 across 117 procedure codes
Paid by Medicare	$318,797

Part D prescriptions in 2024

Prescriptions (claims)	1,614 · 2,347 30-day fills
Patients	819
Total drug cost	$860,433
Generic share	81% of claims

Medicare sources and data years

Education and affiliations

Medical school	State University of New York Downstate Medical Center
Graduation year	1999
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine