Mark Allen Apfelbaum, M.D.

NPI 1477630531ActiveIndividual· Internal Medicine, Interventional Cardiology· New York, NY

Internal Medicine, Interventional Cardiology (M.D.) in New York, New York, trained at Columbia University College of Physicians and Surgeons (class of 1981). Their prescriptions cost Medicare Part D more than their services did: $56,100 for 338 claims, against $19,720 paid for services in 2024. Heartflow, Inc. was the largest of 8 companies reporting payments in 2025, $376.88 in all, mostly food and beverage.

Overview

NPI	1477630531
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Nov 1, 2006
Last updated in NPPES	Jan 8, 2016

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Interventional Cardiology Primary	207RI0011X	155541	NY
Internal Medicine, Cardiovascular Disease	207RC0000X	155541	NY

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 - Interventional Cardiology (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	90
Services billed	202 across 24 procedure codes
Paid by Medicare	$19,720

Part D prescriptions in 2024

Prescriptions (claims)	338 · 889 30-day fills
Patients	50
Total drug cost	$56,100
Generic share	85% of claims

Medicare sources and data years

Education and affiliations

Medical school	Columbia University College of Physicians and Surgeons
Graduation year	1981
Medicare specialty	Interventional Cardiology
Secondary specialties	Cardiovascular Disease (Cardiology)