Mark Stewart MD

Primary specialty

Orthopaedic Surgery PhysicianTaxonomy code 207X00000X

Legal business name

MARK STEWART MD

Doing business as

Mark Stewart MD

Practice address

4 Columbus Ave Ste 360
Bay City, MI 48708-6476

Phone

(989) 894-1111

NPI assigned

Mar 18, 2014

Organization subpart

No

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

Authorized official

Name

Andrea Groulx, R.T.

Title

Office Manager

Phone

(989) 894-1111

Specialties & licenses 1

Addresses

Other names 1

• Mark Stewart MD Doing business as

Locations

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

{
    "created_epoch": "1395100800000",
    "enumeration_type": "NPI-2",
    "last_updated_epoch": "1763424000000",
    "number": "1073930822",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4 COLUMBUS AVE STE 360",
            "city": "BAY CITY",
            "state": "MI",
            "postal_code": "487086476",
            "telephone_number": "989-894-1111",
            "fax_number": "989-894-2994"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4 COLUMBUS AVE STE 360",
            "city": "BAY CITY",
            "state": "MI",
            "postal_code": "487086476",
            "telephone_number": "989-894-1111"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "organization_name": "MARK STEWART MD",
        "organizational_subpart": "NO",
        "enumeration_date": "2014-03-18",
        "last_updated": "2025-11-18",
        "certification_date": "2025-11-18",
        "status": "A",
        "authorized_official_last_name": "GROULX",
        "authorized_official_first_name": "ANDREA",
        "authorized_official_title_or_position": "OFFICE MANAGER",
        "authorized_official_telephone_number": "989-894-1111",
        "authorized_official_credential": "R.T."
    },
    "taxonomies": [
        {
            "code": "207X00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Orthopaedic Surgery",
            "state": null,
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "organization_name": "Mark Stewart MD",
            "code": "3",
            "type": "Doing Business As"
        }
    ]
}

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• Orthopaedic Surgery Physician in Bay City, MI
• Providers in Bay City, MI by specialty
• Orthopaedic Surgery Physician in Michigan

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 18, 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.