Mark P. Tanenbaum, M.D.

NPI 1114929247ActiveIndividual· Internal Medicine, Cardiovascular Disease· Fairfax, VA

Internal Medicine, Cardiovascular Disease (M.D.) in Fairfax, Virginia, trained at Georgetown University School of Medicine (class of 1986). Their prescriptions cost Medicare Part D more than their services did: $520,969 for 2,619 claims, against $122,469 paid for services in 2024. E.R. Squibb & Sons, L.L.C. reported $18.77 in payments in 2025, mostly food and beverage.

Overview

NPI	1114929247
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 1, 2005
Last updated in NPPES	Aug 25, 2022
Certified by provider	Aug 25, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	0101043105	VA

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 - Cardiovascular Disease (Cardiology) (DC); Practitioner - Cardiovascular Disease (Cardiology) (VA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	1,315
Services billed	2,336 across 31 procedure codes
Paid by Medicare	$122,469

Part D prescriptions in 2024

Prescriptions (claims)	2,619 · 7,357 30-day fills
Patients	442
Total drug cost	$520,969
Generic share	88% of claims

Medicare sources and data years

Education and affiliations

Medical school	Georgetown University School of Medicine
Graduation year	1986
Medicare specialty	Cardiovascular Disease (Cardiology)
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth