Robert Tanous, DO

NPI 1174550180ActiveIndividual· Internal Medicine· Bismarck, ND

Internal Medicine (DO) in Bismarck, North Dakota, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 1994). 3,647 Medicare patients in 2024, $755,995 paid; nearly all of their 1,647 Part D prescriptions were generic (93%). Eisai Inc. reported $102.40 in payments in 2025, mostly food and beverage.

Overview

NPI	1174550180
Status	Active
Entity type	Individual
Credential	DO
Sole proprietor	No
NPI issued	Jun 26, 2006
Last updated in NPPES	Jun 6, 2023
Certified by provider	Jun 6, 2023

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	7670	ND

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 (ND)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	3,647
Services billed	47,589 across 116 procedure codes
Paid by Medicare	$755,995

Part D prescriptions in 2024

Prescriptions (claims)	1,647 · 2,345 30-day fills
Patients	791
Total drug cost	$111,500
Generic share	93% of claims

Medicare sources and data years

Education and affiliations

Medical school	Des Moines University of Osteopathic Medicine and Health Sciences
Graduation year	1994
Medicare specialty	Internal Medicine
Secondary specialties	Family Practice