Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Holly Pietrzak-Slazakowski, DT

Individual provider Developmental Therapist · NPI 1992472054

Holly Pietrzak-Slazakowski, DT is a Developmental Therapist in Marengo, Illinois. Practices as a sole proprietor. Licensed in Illinois.

Licensed in
IL
In the registry since
2021
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Practice location Address checks out

440 Kennedy St
Marengo, IL 60152-9026
Phone: (815) 814-7090
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Developmental Therapist (primary) Taxonomy 222Q00000X (IL)

Record details

NPI number1992472054
Entity typeIndividual (Type 1)
GenderFemale
Credentials DT
Sole proprietorYes
NPI enumeratedAugust 26, 2021
Last updated in NPPESAugust 26, 2021
Certification dateAugust 26, 2021