Single? Partnered? Let’s Talk!

Are you trying to work on personal or relationship problems?

The Long Island Institute of Sex Therapy (LIIST) is dedicated to helping people work through life’s unique challenges. Our therapists are award-winning, highly trained, and inclusive. 

The therapists at LIIST are experts in the field of sexology. We utilize our therapeutic training to assist you in reaching new solutions and help you work toward your goals. We assist individuals coping with sexual functioning issues (such as erectile dysfunction and lack of orgasms), depression, anxiety, gender, sexual orientation, and relationship skills. Couples seek therapy for communication and relationship skills, sexual enrichment, or premarital counseling.

The team at LIIST is LGBT+ affirmative, poly inclusive, and kink-aware. All staff therapists have also achieved Level 1 of the Gottman Couples Therapy Method. We are conveniently located in Plainview. You can call, text, or email us to schedule an appointment.

Para clientes que hablan español, llame a Wildilisa directamente al 631-552-5686.

Please note: All sessions are remote until further notice.

We won! Best of LI 2017!

We won! Best of LI 2015!


  • Best of LI 2021
    VOTE DAILY! Dr. Rosara Torrisi, LCSWR, MEd, CST, PhD has been nominated for Best Sex Therapist on Long Island for 2021. You can help her win by voting daily and spreading the word. VOTE NOW: Read more…
  • We have moved!
    We have a new address! We have moved to a spot that’s super convenient to Long Islanders! Our new office has ample parking, walkable to the LIRR, is handicap accessible* and on the 1st floor Read more…
  • 2 grants for uniformed services
    The Long Island Institute of Sex Therapy (LIIST) has 2 grants available for 2 individuals, couples, relationships, families, or households where at least one member is employed in Uniformed Services. Your sessions will be free Read more…