Anna Rose Niesen, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

R8939 Issued in MO

Practice address

6400 Clayton Road
Ste 201
St Louis, MO 63117

Phone

(314) 781-8405

Fax

(314) 781-2462

NPI assigned

Oct 26, 2006

Sex

Female

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

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

{
    "created_epoch": "1161820800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757548800000",
    "number": "1184709107",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6400 CLAYTON ROAD",
            "address_2": "STE 201",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "63117",
            "telephone_number": "314-781-8405",
            "fax_number": "314-781-2462"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "6400 CLAYTON ROAD",
            "address_2": "STE 201",
            "city": "ST LOUIS",
            "state": "MO",
            "postal_code": "63117",
            "telephone_number": "314-781-8405",
            "fax_number": "314-781-2462"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "NIESEN",
        "first_name": "ANNA",
        "middle_name": "ROSE",
        "name_prefix": "Ms.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2006-10-26",
        "last_updated": "2025-09-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MO",
            "license": "R8939",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MO",
            "license": "R8939",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Kathryn Nicole Nienhaus, D.C.
• Shannon Niere, O.D.
• Chad A Nieri, M.D.
• Jenna Niese, AA
• Sheila Niese
• Charles Edward Niesen II, DMD
• Dakota Jaie Niessen, OTR/L
• Abby Nieters
• Gretchen A Nieters, LPC
• Daniel Rey Camba Nieva, MD

• Gastroenterology Physician in St Louis, MO
• Providers in St Louis, MO by specialty
• Gastroenterology Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; 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.