Our Team

Philadelphia Institute for Individual Relational & Sex Therapy is a practice of highly trained and specialized therapists dedicated to helping people gain greater insight and create greater joy in their lives. We provide services for individuals, families and all types of relationships.

Philadelphia, PA Office


Chris F. Fariello
Chris F. FarielloPhD, MA, LMFT, Office Director
Founder and Director of PhIIRST, Dr. Chris Fariello has over 20 years of experience as an educator, trainer, public speaker, writer, and therapist.
Jordan Lief
Jordan LiefPsy.D., CSAT
Dr. Lief is a licensed psychologist who treats people struggling with a variety of issues including depression, anxiety, addiction, trauma/PTSD, loss of a loved one, sexual difficulties, and relationship distress.
Melissa Dessereau
Melissa DessereauLMFT
Melissa is a perceptive and nuanced therapist with a refreshingly frank style. For over 20 years, she has been working with individuals, couples, and families to foster personal growth and satisfying relationships.
Mary Chen
Mary ChenLMFT
Mary Chen is a licensed therapist specializing in affair recovery, discernment counseling, grief for lost relationships, “chronically single” clients, medical family therapy, and women’s sexual pain.
Chris Wilson
Chris WilsonPhD, LMFT, MFT, MEd, CHES
Chris is a licensed psychotherapist who specializes in LGBTQ issues, sexuality issues, couples, and families.
Jennifer Seip
Jennifer SeipMA
Jennifer specializes in couples who would like to improve their emotional bond and sex life, and individuals who are experiencing interpersonal and sexual distress.
Alishia Kalos
Alishia KalosPsy.D.
Alishia is a licensed psychologist with specialized experience in addressing sexual and relational concerns, providing services in Spanish and English.
Julia King
Julia KingMS
Julia is an individual and relational therapist specializing in anxiety, obsessive-compulsive behavior, and sexual dysfunction. She received her Master of Science Degree from the Philadelphia College of Osteopathic Medicine in Mental Health Counseling.
Colby Agostinelli
Colby AgostinelliMFT
Colby is a systemic thinker, graduating from Thomas Jefferson University’s Couple and Family Therapy Program with a strong focus in sex therapy.
Erin Seeherman
Erin SeehermanMS
Erin Seeherman is a graduate of the Mental Health Counseling program at the Philadelphia College of Osteopathic Medicine.
Genevieve Gellert
Genevieve GellertLSW
Genevieve, a Licensed Social Worker and a member of AASECT and CSWA, is an individual, couple, and family therapist specializing in aging and sexuality, caregiver burden and stress, the impact of illness on sexuality, and grief and loss.
Anna Vresilovic
Anna VresilovicM.S.Ed
Anna works with individuals and couples interested in transforming their interpersonal relationships and themselves. She received her Masters in Mental Health counseling from the University of Pennsylvania and is a member of AASECT.
Kaitlin DiGiacinto
Kaitlin DiGiacintoIntern Therapist
Kaitlin is a graduate student in the Marriage and Family Therapy program at La Salle University.