Gwendolynn Denny, CASAC-T

gwendolyn denny

Admissions Therapist

Gwendolyn has earned her certification in substance abuse/mental health counseling at OTI in Brentwood NY. She has worked in the field of addiction for the past 15 years starting as an administrative assistant at various outpatient/inpatient residential facilities. Gwendolyn has joined the team here as an Assessment therapist and is looking forward to bringing hope, support and inspiration to the clients that we serve.

Written by the The Long Island Treatment Center Editorial Team

Published on: May 12, 2026
Updated on: May 12, 2026


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