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

Justin Grassey

Individual provider Behavior Analyst · NPI 1134523327

Justin Grassey is a Behavior Analyst in Chester Springs, Pennsylvania. Licensed in Pennsylvania. Registered with an NPI since 2014.

Licensed in
PA
In the registry since
2014

Practice location Address checks out

1823 Darlington Ln
Chester Springs, PA 19425-3817
Phone: (484) 678-3766
Show map & directions

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

Specialties & licences

Behavior Analyst (primary) Taxonomy 103K00000X · Licence BH002307 (PA)

Record details

NPI number1134523327
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedOctober 16, 2014
Last updated in NPPESOctober 16, 2014
Mailing address1823 Darlington Lane, Chester Springs, PA 19425

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