

Navigate relationship challenges with compassionate couples therapy tailored to your needs. Our Edmonds therapists specialize in helping partners rebuild trust, improve intimacy, and resolve conflict through proven therapeutic approaches. Access care flexibly with virtual or in-person sessions covered by most insurance plans.
I'm Erika Preston, an LMHC with over 11 years of experience in the field. Throughout my career, I've had the privilege of working in a variety of settings, allowing me to develop a diverse skill set and a deep understanding of the complexities of mental health. My specialization encompasses a range of areas, including depression, anxiety, relationship dynamics, trauma, life dissatisfaction, postpartum challenges, low self-esteem, and addiction.
I began my career as a Fulbright Scholar, conducting research on traditional medicine in Sochi, Russia. I presented my work at the United States Embassy in Moscow, highlighting cross-cultural perspectives in healthcare and integrative practice.
After completing my grant, I attended New York University (NYU). I then completed a residency at M.D. Anderson Hospital in Houston, Texas. I went on to earn my doctorate from the University of San Diego, California, where I focused on digital telehealth treatment for psychiatric care.
I am passionate about working with Veterans and individuals experiencing Depression, Anxiety, and Mood Disorders. In 2023, I completed CIIS training in psychedelic-assisted therapy. In 2025, I was among the first providers in Colorado and in the country to become licensed as a psilocybin facilitator.
Mary brings a unique and powerful depth of experience to the therapeutic relationship, including specialized focus areas such as:
If you are seeking a therapist with the highest level of expertise in trauma and complex stress—who also provides a supportive, personalized approach—Mary I. Sullivan is ready to partner with you on your path to healing.
I am a Licensed Mental Health Counselor in Washington and a Licensed Professional Counselor in Colorado. I have over 7 years of post graduate experience working with individuals and couples.


Headway makes it easy to find support for your relationship — from finding the right provider, to understanding costs, to scheduling with ease.
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