Brent Duane Marquardt, MS, CCC-SLP
Speech-Language Pathologist · Fort Gratiot, MI
Brent Duane Marquardt, MS, CCC-SLP is a speech-language pathologist with a practice address in Fort Gratiot, Michigan, and NPI 1518175884, issued on May 19, 2007. Check the license (Michigan 12032986, as entered in NPPES) with the Michigan board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Brent Duane Marquardt
- Credential
- MS, CCC-SLP
- Primary taxonomy
- Speech-Language Pathologist 235Z00000X
- License number
- 12032986 MI
Self-reported in NPPES; status is on the state search - Practice location
- 5976 W Montevista Dr, Fort Gratiot, MI 48059
- Phone
- (810) 385-8310
- Enumerated
- May 19, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (810) 385-8310
- Medicare enrollment
- Enrolled (PECOS I20251022004540); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest speech-language pathologist records → All 3,734 in Michigan → Look up another NPI →
Verify Brent Duane Marquardt in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Michigan board licenses this profession
Search for license 12032986Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Brent Duane Marquardt among 3,734 speech-language pathologist records in Michigan
Brent Duane Marquardt, MS, CCC-SLP is one of 3,734 speech-language pathologist records with a practice address in Michigan. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 2% of them.
- NPI issued2007 · 2% of these records are older, 95% newer
- In a Medicare fileNo · 4% of these records are
- In the CMS Doctors and Clinicians fileYes · 8% of these records are
- Graduated1998 · median 2019 among the 312 with a school on file
- Record last updated2007 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 235Z00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
7 speech-language pathologist records list a practice address in Fort Gratiot
They are 7 of the 484 NPPES records with a practice address in Fort Gratiot, and 3,734 speech-language pathologist records in Michigan. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 3,734 in Michigan → Every provider in Fort Gratiot → Speech-Language Pathologist nationwide →
The 8 speech-language pathologist records with the nearest ZIP codes
- Jessica BohmFort Gratiot, MI 480591801687074
- Frauline Caldwell, M.A., CCC-SLPLakeport, MI 480591346530292
- Asa Choate, M.A., CF-SLPFort Gratiot, MI 480591023866563
- Anna HerrFort Gratiot, MI 480591467396630
- Kimberly King, SLP-CCCFort Gratiot, MI 480591962805689
- Katherine Phelan, M.A., CCC-SLPFort Gratiot, MI 480591063848513
- Sarah St. Coeur, M.A., CCC-SLP/LFort Gratiot, MI 480591386162840
- Erin Barr, MA, CCC-SLPPort Huron, MI 480601336628148
Common questions
What is Brent Duane Marquardt, MS, CCC-SLP's NPI number?
Brent Duane Marquardt, MS, CCC-SLP's National Provider Identifier (NPI) is 1518175884, issued on May 19, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Brent Duane Marquardt, MS, CCC-SLP located?
The NPPES record lists a practice address at 5976 W Montevista Dr, Fort Gratiot, MI, 48059. Phone: (810) 385-8310. Providers update this record themselves, so call before visiting.
How can I verify Brent Duane Marquardt, MS, CCC-SLP's license?
NPPES lists Michigan license number 12032986, as entered by the provider. Search the Michigan board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.