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

Mary C Streit, PHD

Individual provider Psychologist · NPI 1477126100

Mary C Streit, PHD is a Psychologist in Holtsville, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2021
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

125 Cassa Loop
Holtsville, NY 11742-2602
Phone: (631) 618-7625
Show map & directions

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

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence 013804-1 (NY)

Record details

NPI number1477126100
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorYes
NPI enumeratedJuly 20, 2021
Last updated in NPPESJuly 20, 2021
Certification dateJuly 20, 2021
Mailing address125 Cassa Loop, Holtsville, NY 11742-2602

Other providers in Holtsville