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

Dr. Charles Edward Streff, PHD

Individual provider Psychologist · NPI 1114029733

Dr. Charles Edward Streff, PHD is a Psychologist in Acton, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts.

Licensed in
MA
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

532 Great Rd
Acton, MA 01720-3415
Phone: (978) 263-0439
Fax: (978) 486-3140
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 2084 (MA)

Record details

NPI number1114029733
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedSeptember 3, 2006
Last updated in NPPESJuly 8, 2007
Mailing address532 Great Rd, Acton, MA 01720-3415

Other providers in Acton