Provider
MARC B ARMSTRONG M.D.
Public NPPES listing with taxonomy: Internal Medicine.
MARC B ARMSTRONG M.D. is a provider in Aberdeen, South Dakota. Check Medicare & GLP-1 coverage status, address, phone, NPI, and source details below, then call or visit the website to confirm current participation and benefits.
Resource details
Medicare status: Confirm directly
Unknown from NPPES
Source: NPPES NPI Registry
NPI: 1326453556
Taxonomy: Internal Medicine (207R00000X)
Source confidence: 58%
Medicare assignment: Unknown from NPPES
Address: 305 S STATE ST, ABERDEEN, SD, 574014527
Phone: 605-622-5100
Last verified: June 15, 2026