Individual provider Active NPI

Brent Duane Marquardt, MS, CCC-SLP

  • Speech-Language Pathologist
  • Fort Gratiot, MI
National Provider Identifier
1518175884
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Speech-Language PathologistTaxonomy code 235Z00000X
License
12032986 Issued in MI
Practice address
5976 W Montevista Dr
Fort Gratiot, MI 48059-2703
Phone
(810) 385-8310
Fax
(810) 385-8310
NPI assigned
May 19, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Speech-Language Pathologist 235Z00000X 12032986 MI Primary

Addresses

Primary practice location

5976 W Montevista Dr
Fort Gratiot, MI 48059-2703

Mailing address

5976 W Montevista Dr
Fort Gratiot, MI 48059-2703
Phone (810) 385-8310

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in MI

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251022004540 MI Practitioner - Qualified Speech Language Pathologist 0749778652 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Qualified Speech Language Pathologist
Education
Other, 1998
Medicare assignment
Accepts the Medicare-approved amount as payment in full

Practice addresses (Care Compare)

3915 Pine Grove Ave
Fort Gratiot, MI 48059-4251
Phone (810) 531-8794

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Master of Science

State licenses

LicenseStateTypeSpecialty
12032986MIMDSpeech-Language Pathologist

Practice roles

OrganizationSpecialtyStatusNew patients
Wellness Works, LLC Speech-Language Pathologist Current Accepting new patients
Live Big & Loud LLC CurrentSince Sep 15, 2025 Accepting new patients

Locations

3915 Pine Grove Ave
Fort Gratiot, MI 48059
Phone (810) 531-8794

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

NPI Registry JSON

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

{
    "created_epoch": "1179532800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1518175884",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5976 W MONTEVISTA DR",
            "city": "FORT GRATIOT",
            "state": "MI",
            "postal_code": "480592703",
            "telephone_number": "810-385-8310",
            "fax_number": "810-385-8310"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5976 W MONTEVISTA DR",
            "city": "FORT GRATIOT",
            "state": "MI",
            "postal_code": "480592703",
            "telephone_number": "810-385-8310",
            "fax_number": "810-385-8310"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARQUARDT",
        "first_name": "BRENT",
        "middle_name": "DUANE",
        "name_prefix": "Mr.",
        "credential": "MS, CCC-SLP",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-05-19",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "235Z00000X",
            "taxonomy_group": "",
            "desc": "Speech-Language Pathologist",
            "state": "MI",
            "license": "12032986",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Fort Gratiot, MI

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 8, 2007; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
  • 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.