Meet Our Team

The leadership team at Long Island Treatment Center consists of a wide range of leading addiction treatment professionals that come from many walks of life. Several of us are in recovery ourselves, and are now giving back by helping others struggling with addiction.

Reviewed for Medical & Clinical Accuracy by Vince Breuning

Amanda Timonere

LMHC, NCC, CCMHC, MCAP

Chief Clinical Officer

Amanda Timonere has served in the Mental Health Field since 2010 and holds a Dual Master’s Degree in Mental Health Counseling and Marriage and Family Therapy from Barry University.

Catherine Manley

LMHC

Chief Operating Officer

Catherine Manley, LMHC serves as the Chief Operating Officer at Long Island Treatment Center. She has worked in the behavioral healthcare sector for 10+ years.

Dr. Tildabeth Doscher

MD, MPH

Medical Director

Dr. Doscher is double-boarded in Preventive Medicine and Addiction Medicine. She completed both her Medical Doctorate and her Masters in Public Health at UCLA.

Joel Wishnia

Executive Director

Joel Wishnia has worked in the treatment field since 2016. Joel grew up in South Florida and returned in 2016, after his own personal struggles with alcoholism and addiction. He is dedicated to helping others find a new way of life.

Sarah Stanton

LCSW

Director of Substance Use Counseling

Sarah Stanton is the Director of Substance Use Counseling at Long Island Treatment Center. Sarah has a BA from Vanderbilt University and an MSW from New York University and specializes in the treatment of co-occurring disorders.

Alex Costa

Chief Marketing Officer

Alex Costa, a Massachusetts native, is a person in long-term recovery from Addiction and Alcoholism. His passion and purpose for helping others always remain at the forefront as our Chief Marketing Officer.

Jamie Lastihenos

MS, LCAT

Primary Therapist

Jamie received her Bachelors of Science in Psychology from SUNY Oneonta, and later obtained her Masters of Science in Creative Arts and Expressive Therapies from Sarah Lawrence College.

Morgan Essig

CASAC-T

Case Manager

Morgan has worked in the field of substance abuse treatment since 2017 with the goal of providing a safe place for others to heal. Her goal is to assist those entering treatment in making a strong healthy foundation for their continued recovery.

Marisa Edelson

Alumni Coordinator

Marisa Edelson is a Long Island native and person in long-term recovery. She is currently in school for counseling while pursuing her passion of helping others recover.