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

Gretchen Susanne Biggerstaff

Individual provider Developmental Therapist · NPI 1851901672

Gretchen Susanne Biggerstaff is a Developmental Therapist in Mc Leansboro, Illinois. Practices as a sole proprietor. Registered with an NPI since 2020.

In the registry since
2020

Practice location Address checks out

1706 S Hancock St
Mc Leansboro, IL 62859-1996
Phone: (618) 925-3150
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Developmental Therapist (primary) Taxonomy 222Q00000X

Record details

NPI number1851901672
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedAugust 6, 2020
Last updated in NPPESAugust 6, 2020
Certification dateAugust 6, 2020

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