Triston Wihelm Gabriel Berger, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

82339 Issued in MN

Practice address

Norwalk Hospital
34 Maple Street
Norwalk, CT 06856-3815

Phone

(203) 852-2025

Fax

(203) 899-5224

NPI assigned

Apr 7, 2020

Last updated

Aug 10, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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

Not listed in the public Medicare enrollment file

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.

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1586217600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1786320000000",
    "number": "1124657515",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "400 E 3RD ST",
            "city": "DULUTH",
            "state": "MN",
            "postal_code": "558051951",
            "telephone_number": "218-786-8364"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "NORWALK HOSPITAL",
            "address_2": "34 MAPLE STREET",
            "city": "NORWALK",
            "state": "CT",
            "postal_code": "068563815",
            "telephone_number": "203-852-2025",
            "fax_number": "203-899-5224"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "420 E 1st St",
            "address_purpose": "LOCATION",
            "city": "Duluth",
            "state": "MN",
            "postal_code": "558051901",
            "country_code": "US",
            "telephone_number": "218-786-8364",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BERGER",
        "first_name": "TRISTON",
        "middle_name": "WIHELM GABRIEL",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2020-04-07",
        "last_updated": "2026-08-10",
        "certification_date": "2026-08-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MN",
            "license": "82339",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MN",
            "license": "82339",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Dakota Bennett, RDN
• Taylor Benson, ATC, LAT, EMT
• Francis Xavier Berardi, MS, LADC, ICAADC
• Debra Carol Berg
• Steven Gary Berger, MD
• Elizabeth Bergman, LCSW
• Laury A Berkwitt, WHNP
• Lewis Berman, M.D.
• Steven Marc Berman, M.D.
• Mariana Bermeo

• Gastroenterology Physician in Norwalk, CT
• Providers in Norwalk, CT by specialty
• Gastroenterology Physician in Connecticut

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 10, 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.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.