Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Mr. Brent Duane Marquardt, MS, CCC-SLP

Individual provider Speech-Language Pathologist · NPI 1518175884

Mr. Brent Duane Marquardt, MS, CCC-SLP is a Qualified Speech Language Pathologist in Fort Gratiot, Michigan. Qualified in 1998, 28 years ago. Practices as a sole proprietor and accepts Medicare assignment. Licensed in Michigan.

Years since qualifying
28
Licensed in
MI
In the registry since
2007
What do these letters mean?
MS — Master of Science
A graduate science degree.
CCC-SLP — Certificate of Clinical Competence in Speech-Language Pathology
A speech-language pathologist certified by ASHA.

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Practice location Address checks out

5976 W Montevista Dr
Fort Gratiot, MI 48059-2703
Phone: (810) 385-8310
Fax: (810) 385-8310
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence 12032986 (MI)

Record details

NPI number1518175884
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , CCC-SLP
Sole proprietorYes
NPI enumeratedMay 19, 2007
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyQUALIFIED SPEECH LANGUAGE PATHOLOGIST
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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