Mark A. Backus, M.D.

NPI 1588693105ActiveIndividual· Internal Medicine· Bend, OR

Internal Medicine (M.D.) in Bend, Oregon, trained at Duke University School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $714,727 for 6,116 claims, against $91,714 paid for services in 2024. Zoll Respicardia, Inc. was the largest of 3 companies reporting payments in 2025, $84.93 in all, mostly food and beverage.

Overview

NPI	1588693105
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jul 3, 2006
Last updated in NPPES	Feb 20, 2020
Certified by provider	Feb 20, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	MD22701	OR

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 - Internal Medicine (OR)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	301
Services billed	2,221 across 54 procedure codes
Paid by Medicare	$91,714

Part D prescriptions in 2024

Prescriptions (claims)	6,116 · 16,140 30-day fills
Patients	434
Total drug cost	$714,727
Generic share	89% of claims

Medicare sources and data years

Education and affiliations

Medical school	Duke University School of Medicine
Graduation year	1993
Medicare specialty	Internal Medicine
Secondary specialties	Family Practice
Telehealth	Offers telehealth