Edwin Charles Chapman Sr., M.D.

NPI 1841303880ActiveIndividual· Internal Medicine· Washington, DC

Internal Medicine (M.D.) in Washington, District of Columbia, trained at Howard University College of Medicine (class of 1973). Their prescriptions cost Medicare Part D more than their services did: $945,059 for 2,489 claims, against $66,993 paid for services in 2024. Braeburn Inc. was the largest of 3 companies reporting payments in 2025, $15,478 in all, mostly honoraria.

Overview

NPI	1841303880
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	Aug 16, 2006
Last updated in NPPES	Nov 10, 2011

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	10544	DC
Internal Medicine, Addiction Medicine	207RA0401X	10544	DC

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

Medicare services in 2024

Medicare patients	76
Services billed	613 across 10 procedure codes
Paid by Medicare	$66,993

Part D prescriptions in 2024

Prescriptions (claims)	2,489 · 3,982 30-day fills
Patients	162
Total drug cost	$945,059

Medicare sources and data years

Education and affiliations

Medical school	Howard University College of Medicine
Graduation year	1973
Medicare specialty	Internal Medicine
Secondary specialties	Addiction Medicine, Preventive Medicine