Martin P. Altman, M.D.

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

R5055 Issued in MO

Practice address

400 1St Capitol Dr
Suite 201
Saint Charles, MO 63301-2880

Phone

(636) 669-2332

Fax

(636) 669-2401

NPI assigned

Mar 30, 2006

Last updated

Jul 13, 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 1

Addresses

Medicare fee-for-service enrollment

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

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

{
    "created_epoch": "1143676800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1437110491",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1551 WALL ST",
            "address_2": "SUITE 310",
            "city": "SAINT CHARLES",
            "state": "MO",
            "postal_code": "633033539",
            "telephone_number": "636-669-2268",
            "fax_number": "636-669-2401"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "400 1ST CAPITOL DR",
            "address_2": "SUITE 201",
            "city": "SAINT CHARLES",
            "state": "MO",
            "postal_code": "633012880",
            "telephone_number": "636-669-2332",
            "fax_number": "636-669-2401"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ALTMAN",
        "first_name": "MARTIN",
        "middle_name": "P.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-03-30",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "MO",
            "license": "R5055",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

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• Gastroenterology Physician in Saint Charles, MO
• Providers in Saint Charles, MO by specialty
• Gastroenterology Physician in Missouri

• 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.