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

Dr. John N Grutkowski, PHD

Individual provider Forensic Psychologist · NPI 1114139375

Dr. John N Grutkowski, PHD is a Forensic Psychologist in Wilkes Barre, Pennsylvania. Practices as a sole proprietor. Licensed in Pennsylvania.

Licensed in
PA
In the registry since
2007
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

47 S Washington St
Wilkes Barre, PA 18701-3033
Phone: (570) 824-8971
Show map & directions

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

Specialties & licences

Forensic Psychologist (primary) Taxonomy 103TF0200X · Licence PS003426-L (PA)

Record details

NPI number1114139375
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedMay 3, 2007
Last updated in NPPESJuly 8, 2007
Mailing address17 Metropolitan Ave., Hunlock Creek, PA 18621-4412