Timothy P. Armstrong, MD

NPI 1871641688ActiveIndividual· Psychiatry & Neurology, Neurology· Bellingham, WA

Psychiatry & Neurology, Neurology (MD) in Bellingham, Washington, trained at University of Chicago, Pritzker School of Medicine (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $179,913 for 2,624 claims, against $56,513 paid for services in 2024. Ucb, Inc. reported $15.00 in payments in 2025, mostly education.

Overview

NPI	1871641688
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Jan 8, 2007
Last updated in NPPES	Jul 24, 2019

Specialties and licenses

Taxonomy	Code	License	State
Psychiatry & Neurology, Neurology Primary	2084N0400X	MD60913179	WA
Internal Medicine	207R00000X	MD60913179	WA
Psychiatry & Neurology, Neurology	2084N0400X	G56333	CA

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 - Neurology (WA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	460
Services billed	874 across 29 procedure codes
Paid by Medicare	$56,513

Part D prescriptions in 2024

Prescriptions (claims)	2,624 · 4,962 30-day fills
Patients	468
Total drug cost	$179,913
Generic share	97% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Chicago, Pritzker School of Medicine
Graduation year	1984
Medicare specialty	Neurology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth