Mark Yarchoan, M.D.

NPI 1962761080ActiveIndividual· Internal Medicine· Baltimore, MD

Internal Medicine (M.D.) in Baltimore, Maryland, trained at Perelman School of Med at the University of Pennsylvania (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $143,611 for 165 claims, against $42,864 paid for services in 2024. Genentech, Inc. was the largest of 5 companies reporting payments in 2025, $26,864 in all, mostly consulting fees.

Overview

NPI	1962761080
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	May 9, 2012
Last updated in NPPES	Sep 22, 2015

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	D0079210	MD
Internal Medicine	207R00000X	MD452099	PA
Internal Medicine	207R00000X	MT201116	PA

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 - Medical Oncology (MD)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	139
Services billed	594 across 15 procedure codes
Paid by Medicare	$42,864

Part D prescriptions in 2024

Prescriptions (claims)	165 · 310 30-day fills
Patients	44
Total drug cost	$143,611
Generic share	84% of claims

Medicare sources and data years

Education and affiliations

Medical school	Perelman School of Med at the University of Pennsylvania
Graduation year	2012
Medicare specialty	Medical Oncology
Telehealth	Offers telehealth