John J. Haluschak, MD

NPI 1407895535ActiveIndividual· Internal Medicine, Medical Oncology· Oakwood, OH

Internal Medicine, Medical Oncology (MD) in Oakwood, Ohio, trained at Loma Linda University School of Medicine (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $889,519 for 557 claims, against $54,274 paid for services in 2024. Abbvie Inc. reported $27.25 in payments in 2025, mostly food and beverage.

Overview

NPI	1407895535
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jun 5, 2006
Last updated in NPPES	Mar 25, 2022
Certified by provider	Mar 25, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Medical Oncology Primary	207RX0202X	35.057545	OH
Internal Medicine, Hematology & Oncology	207RH0003X	35057545	OH

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 - Hematology/Oncology (OH); Practitioner - Medical Oncology (WA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	227
Services billed	2,022 across 17 procedure codes
Paid by Medicare	$54,274

Part D prescriptions in 2024

Prescriptions (claims)	557 · 825 30-day fills
Patients	140
Total drug cost	$889,519
Generic share	63% of claims

Medicare sources and data years

Education and affiliations

Medical school	Loma Linda University School of Medicine
Graduation year	1987
Medicare specialty	Medical Oncology
Secondary specialties	Hematology, Internal Medicine
Telehealth	Offers telehealth