All Seattle Institute staff are independent contractors and/or volunteers. Therapy staff are certified and/or licensed clinicians who have private clinical practices. Education staff are professionals who are trained in sexuality and relationship-enhancement skills. Both therapists and educators work with individuals, couples and small groups. Each person runs their own business and sets their own fees.
Therapists & Educators
ELIZABETH RAE LARSON, M.S., D.H.S., LMHC, FAACS, is cofounder and current director of Seattle Institute, and practices as a therapist and educator. She is a Founding Fellow of the American Academy of Clinical Sexologists and is certified as a Sex Therapist and Sex Educator by the American Board of Sexology and as a Sexologist by the American College of Sexologists. She is a Licensed Mental Health Counselor (Washington license LH#00005994) and a certified Safe Sex Instructor/Advisor. She received her doctorate from the Institute for Advanced Study of Human Sexuality and also acknowledges the contributions of the National Sex Forum; Kenneth Ray Stubbs, Ph.D.; Betty Dodson, Ph.D.; the Society for the Scientific Study of Sexuality; and the Body Electric School to her practice. Dr. Larson uses cognitive behavioral and other learning-based techniques in her practice and also focuses on spiritual aspects of sexuality. Her guidelines for new clients are also available for you to read. Email Dr. Larson at Seattle Institute.
DOMINIQUE WALMSLEY, Ph.D., LMHC, works with individuals and couples at her office in Seattle’s Green Lake neighborhood. She served a two-year internship at Seattle Institute focusing on clinical sexology and is working towards certification as a Sex Therapist with the American Association of Sex Educators, Counselors and Therapists (AASECT). She received her doctorate in Psychology from Saybrook University and her Master of Arts in Psychology from Seattle University. She has taken advanced training in Emotionally Focused Couple Therapy (EFT) and is a Licensed Mental Health Counselor (Washington license LH60108333). She has a private practice in general counseling and also works as a Divorce Coach and Mediator in Collaborative Law, aiming to retain connections among people as they go through life’s transitions. Read her client information statement here. Email
Dr. Walmsley at Seattle Institute.
DIANA WILEY, Ph.D., LMFT, has been a Board-Certified Sex Therapist, Diplomate of the American Board of Sexology, and clinical sexologist for over 25 years. She is a Licensed Marriage and Family Therapist in Washington state (Washington license LF#60228827) and has been licensed as a Marriage and Family Therapist in California since 1985. She has a private practice in downtown Seattle, and she joined Seattle Institute when she moved here from Los Angeles where she worked at UCLA’s Female Sexual Medicine Center. Dr. Diana has seen thousands of couples in marriage counseling, co-led two women’s sexuality groups for eleven years, and narrated a number of sex education films for the Sinclair Institute. Often speaking on Aging & Sexuality, she believes in lust, laughter, and love—and keeping these as priorities in order to improve longevity and enhance quality of life as we evolve and mature. Any age is a great age to strip off the sexual “shoulds”—remembering that sex is play, not work! Dr. Diana hosts “Love, Lust and Laughter” on the Progressive Radio Network, airing Tuesdays from 6:00–7:00 PM Eastern Time, 3:00–4:00 PM Pacific Time. Email Dr. Wiley at Seattle Institute. Click here for more information.
JESSA ZIMMERMAN, M.A., LMHC, works in private practice in the Pioneer Square neighborhood in downtown Seattle and specializes in working with couples struggling with issues of sex and intimacy. At this time she is not taking new clients at Seattle Institute. Jessa earned a Masters in Psychology from Saybrook University and a Certificate in Sex Therapy from the University of Michigan. She is a nationally certified sex therapist with the American Association of Sex Educators, Counselors and Therapists (AASECT) and a licensed mental health counselor in the state of Washington (License No.: LH60330781). She has pursued advanced training in approaches to couples therapy, including Emotionally Focused Couple Therapy (EFT) and Crucible™ Couples Therapy. She is passionate about the process of developing one’s capacity for emotional intimacy and is committed to working with you to find the love, support, and sexual enjoyment that is possible when you work through the emotional gridlock that is inevitable in every relationship. Read her client information statement here. Email Jessa Zimmerman at Seattle Institute.
MARC GILMARTIN, M.A., LMHC, is a licensed mental health counselor (License #LH00008395) and a certified group psychotherapist. At Seattle Institute for Sex Therapy, Education and Research, he offers conjoint couples sex therapy, working with Dr. Elizabeth Rae Larson. This treatment approach gives couples the experience of having both a male and female perspective in addressing their needs. Marc and Elizabeth address a number of sexuality concerns, including lack of sexual desire or unmatched levels of sexual desire, erection difficulties, pain during sex, orgasm difficulties, and sexual conflicts. They help couples find satisfaction and build harmony in their sexual relationship. Philosophy: Marc believes in a compassionate, sex-positive and evidence-based approach to treating sexual concerns. He understands the mixed feelings that many clients have about their sexuality. People often hold a love/hate attitude about a behavior. For example, a client might say “I love how exciting it is to look at sexual imagery (pornography) online. And I hate how upsetting it is to my wife.” Marc works to help couples identify their own vision of sexual health for their relationship that includes living within their own personal values and ethics. In addition to being on staff at Seattle Institute for Sex Therapy, Education and Research, Marc maintains a private practice in Bellevue, WA, where he offers sex therapy, individual and group therapy. He also facilitates a weekly therapy group for men with out-of-control sexual behavior and erotic conflicts. If you’re interested in meeting with Marc and Elizabeth for conjoint couples sex therapy, please email Marc Gilmartin or Dr. Larson at Seattle Institute.
LAURA TSANG, M.S., LMFT, is a Licensed Marriage and Family Therapist and a certified Clinical Sexologist. She provides individual, couple, and sex therapy in her West Seattle offices. She presents public seminars and workshops in Cantonese and English on various mental health issues. Email Laura Tsang at Seattle Institute.