Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Matthew Christopher Sienkowski, MS, AT, ATC, OTC

Individual provider Athletic Trainer · NPI 1922416767

Matthew Christopher Sienkowski, MS, AT, ATC, OTC is an Athletic Trainer in Grand Rapids, Michigan. Practices as a sole proprietor. Licensed in Michigan.

Licensed in
MI
In the registry since
2014
What do these letters mean?
MS — Master of Science
A graduate science degree.
ATC — Certified Athletic Trainer
Prevents and treats sport and activity injuries.

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Practice location Address checks out

4100 Lake Dr SE Ste 300
Grand Rapids, MI 49546-8292
Phone: (616) 267-8860
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Athletic Trainer (primary) Taxonomy 2255A2300X · Licence 2601001655 (MI)

Record details

NPI number1922416767
Entity typeIndividual (Type 1)
GenderMale
Credentials MS , AT , ATC , OTC
Sole proprietorYes
NPI enumeratedJuly 24, 2014
Last updated in NPPESMarch 7, 2020
Certification dateMarch 7, 2020

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