William G Armstrong, MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

25598 Issued in MN

Practice address

17 Exchange St W
Suite 835
Saint Paul, MN 55102-1045

Phone

(651) 232-4200

Fax

(651) 232-4119

NPI assigned

Apr 26, 2006

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1146009600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1073570099",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "17 EXCHANGE ST W",
            "address_2": "SUITE 835",
            "city": "SAINT PAUL",
            "state": "MN",
            "postal_code": "551021045",
            "telephone_number": "651-232-4200",
            "fax_number": "651-232-4119"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "17 EXCHANGE ST W",
            "address_2": "SUITE 835",
            "city": "SAINT PAUL",
            "state": "MN",
            "postal_code": "551021045",
            "telephone_number": "651-232-4200",
            "fax_number": "651-232-4119"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "WILLIAM",
        "middle_name": "G",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-26",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MN",
            "license": "25598",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Arms of Angels
• Donald T Armstrong, OPA-C
• Leonard Hart Armstrong, MD
• Sarah K Armstrong, MBA PSYD LP
• Tricia Lea Armstrong, MA, CCC, SLP, CLC
• Eugene Michael Arnal, D.C.
• Amber R Arndt, PA-C
• Ciara Arndt
• Sally Arndt, AUD
• Halle Arneson

• Internal Medicine Physician in Saint Paul, MN
• Providers in Saint Paul, MN by specialty
• Internal Medicine Physician in Minnesota

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.