Michael Gavalas, MD

NPI 1548689821ActiveIndividual· Internal Medicine, Cardiovascular Disease· Stony Brook, NY

Internal Medicine, Cardiovascular Disease (MD) in Stony Brook, New York, trained at State University of New York at Stony Brook, School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $426,025 for 1,754 claims, against $169,235 paid for services in 2024. Novartis Pharmaceuticals Corporation was the largest of 2 companies reporting payments in 2025, $170.02 in all, mostly food and beverage.

Overview

NPI	1548689821
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 15, 2014
Last updated in NPPES	Jun 8, 2020
Certified by provider	Jun 8, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Cardiovascular Disease Primary	207RC0000X	304603	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 - Cardiovascular Disease (Cardiology) (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	1,005
Services billed	2,289 across 34 procedure codes
Paid by Medicare	$169,235

Part D prescriptions in 2024

Prescriptions (claims)	1,754 · 4,594 30-day fills
Patients	220
Total drug cost	$426,025
Generic share	82% of claims

Medicare sources and data years

Education and affiliations

Medical school	State University of New York at Stony Brook, School of Medicine
Graduation year	2014
Medicare specialty	Cardiovascular Disease (Cardiology)
Telehealth	Offers telehealth