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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

WILLIAM G ARMSTRONG MD
NPI 1073570099
Internal Medicine in Saint Paul, MN

Active since April 26, 2006
17 EXCHANGE ST W, SUITE 835, SAINT PAUL, MN 55102(651) 232-4200(651) 232-4119 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About William G Armstrong Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM G ARMSTRONG MD (NPI 1073570099) is an individual internal medicine provider in Saint Paul, Minnesota, licensed in Minnesota (25598) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1073570099
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameWILLIAM G ARMSTRONGCredential: MD
Location Address17 EXCHANGE ST W, SUITE 835Saint Paul, MN 55102-1045
Mailing Address17 Exchange St W, Suite 835Saint Paul, MN 55102-1045 · (651) 232-4200 · Fax (651) 232-4119
Phone(651) 232-4200
Fax(651) 232-4119
Sole ProprietorNo
Enumeration DateApril 26, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1073570099 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MN · 25598
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
17 EXCHANGE ST W, Saint Paul, MN 55102
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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JAMES DENNIS FOLEY M.D.
Specialist
17 EXCHANGE ST W, SUITE 804
SAINT PAUL, MN 55102
Ramsey County (651) 292-9624
MICHAEL J BOZIVICH MD
Internal Medicine
17 EXCHANGE ST W, SUITE 500
SAINT PAUL, MN 55102
Ramsey County (651) 232-4200
PETER DALY MD
Orthopaedic Surgery
17 EXCHANGE ST W, SUITE 307
SAINT PAUL, MN 55102
Ramsey County (651) 842-5200
ETHAN CONROY PAC
Physician Assistant (Surgical)
17 EXCHANGE ST W, SUITE 222
SAINT PAUL, MN 55102
Ramsey County (651) 224-7854
MEDICAL ASSOCIATES OF MINNESOTA
Internal Medicine (Rheumatology)
17 EXCHANGE ST W, SUITE # 420
SAINT PAUL, MN 55102
Ramsey County (651) 232-4125
MEDICAL ASSOCIATES OF MINNESOTA
Internal Medicine
17 EXCHANGE ST W, SUITE # 602
SAINT PAUL, MN 55102
Ramsey County (651) 232-4311
ST ANTHONY ORTHOPAEDIC SPECIALISTS PA
Orthopaedic Surgery (Adult Reconstructive Orthopaedic Surgery)
17 EXCHANGE ST W, #222
SAINT PAUL, MN 55102
Ramsey County (651) 602-0101
JAMES D. FOLEY, M.D., P.A.
Clinic/Center
17 EXCHANGE ST W, SUITE 804
SAINT PAUL, MN 55102
Ramsey County (651) 292-9624

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Armstrong's NPI number?

The NPI number for William Armstrong is 1073570099. It was assigned to this individual provider in the NPPES registry on April 26, 2006.

Where is William Armstrong located?

William Armstrong practices at 17 Exchange St W Suite 835, Saint Paul, MN 55102. The listed phone number is (651) 232-4200.

What is William Armstrong's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

When was this NPI record last updated?

The NPPES record for William Armstrong was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.