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

Dr. Glenn R. Trezza, PHD

Individual provider Clinical Psychologist · NPI 1639182256

Dr. Glenn R. Trezza, PHD is a Clinical Psychologist in Boston, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts and New York.

Licensed in
MA, NY
In the registry since
2006
Specialties on file
4
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1 S Market St Ste 4
Boston, MA 02109-6145
Phone: (617) 460-4262
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

VA Clinic/Center (primary) Taxonomy 261QV0200X · Licence 6647 (MA)
Clinical Psychologist Taxonomy 103TC0700X · Licence 6647 (MA)
Clinical Psychologist Taxonomy 103TC0700X · Licence 011533 (NY)
VA Clinic/Center Taxonomy 261QV0200X · Licence 011533 (NY)

Record details

NPI number1639182256
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedAugust 14, 2006
Last updated in NPPESOctober 2, 2020
Certification dateOctober 2, 2020

Other providers in Boston