Juan Carlos Armstrong Jr., MD

Primary specialty

Internal Medicine PhysicianTaxonomy code 207R00000X

License

73004 Issued in TN

Practice address

1301 Medical Center Dr
Nashville, TN 37232-0028

Phone

(615) 322-5000

NPI assigned

Apr 12, 2023

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in TN

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 1

Specialty

Internal Medicine

Education

Other, 2023

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Vanderbilt University Medical CenterGroup PAC ID 5092023416, shared by 11 NPIs, 3,510 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Interoperability endpoints

• Direct secure messaging: jarmstrong732479@direct.vumc.org

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

{
    "created_epoch": "1681257600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1780963200000",
    "number": "1427744606",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3841 GREEN HILLS VILLAGE DR STE 200",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372152691"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1301 MEDICAL CENTER DR",
            "city": "NASHVILLE",
            "state": "TN",
            "postal_code": "372320028",
            "telephone_number": "615-322-5000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "719 Thompson Ln Ste 20400",
            "address_purpose": "LOCATION",
            "city": "Nashville",
            "state": "TN",
            "postal_code": "372044600",
            "country_code": "US",
            "telephone_number": "615-936-1254",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1250 E 66th St",
            "address_purpose": "LOCATION",
            "city": "Savannah",
            "state": "GA",
            "postal_code": "314045704",
            "country_code": "US",
            "telephone_number": "678-548-1724",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "JUAN",
        "middle_name": "CARLOS",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2023-04-12",
        "last_updated": "2026-06-09",
        "certification_date": "2026-06-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "TN",
            "license": "73004",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• David William John Armstrong, MD PHD
• Gabriella-Salome Kalimapehu Armstrong, MD
• Janice Lynn Ann Armstrong, NP-C
• Jennifer Joy Armstrong, MSSW
• Jessica Armstrong
• Korevina Lasha Armstrong, FNP
• Lane Armstrong
• Laura Armstrong, MD, PHD
• Robert James Armstrong, D.O.
• Shavonna Armstrong, BS

• Internal Medicine Physician in Nashville, TN
• Providers in Nashville, TN by specialty
• Internal Medicine Physician in Tennessee

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 9, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.