Doctor of Marriage & Family Therapy
Licensed Marriage & Family Therapist and Supervisor
Certified Sex Therapist and Supervisor

Relationship & Sex Expert and Clinician

Dr. Viviana Coles is President and Lead Psychotherapist at Houston Relationship Therapy. She is also President and Lead Instructor at the Texas Sex Therapy Institute, a Sex Therapy Certification program for mental health professionals. Dr. Coles holds a Bachelor’s Degree in Psychology and Master’s and Doctoral Degrees in Marriage and Family Therapy.

Since 2003, Dr. Viviana Coles has exclusively focused on her work with couples and individuals experiencing emotional and physical intimacy issues. She has built a thriving private practice providing relationship therapy, sex therapy and premarital counseling. Dr. Viviana is currently a featured marriage expert on Lifetime’s hit show “Married at First Sight”. When not in session or filming, Dr. Coles enjoys spending quality time with her husband and two children and traveling with family and friends.


Dr. Coles’ ability to efficiently and positively impact a relationship is unmatched. She sees couples in a combination of both joint and individual sessions, as needed.

Her training and experience as a Systemic Brief Therapist allows for a relatively quick movement from problems to solutions. Her clients can expect an appropriately directive and nurturing therapeutic approach, and she gives honest and immediate feedback during sessions.

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