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

Dr. Gregory B. Barker, PHD

Individual provider Psychologist · NPI 1205937158

Dr. Gregory B. Barker, PHD is a Psychologist in Rhinebeck, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2006
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

18-20 E Market St
Rhinebeck, NY 12572
Phone: (845) 758-8477
Fax: (845) 758-8477
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 7202-1 (NY)

Record details

NPI number1205937158
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 25, 2006
Last updated in NPPESJuly 8, 2007
Mailing address8 Wildey Rd, Barrytown, NY 12507-5009

Other providers in Rhinebeck