Ketamine-Assisted Therapy (KAT) offered in both the individual and group settings

Our Team

  • Elizabeth (Libbet) Cone, LCSW - she/her

    Therapist/Elder – Elizabeth comes to the work of Psychedelic-assisted psychotherapy with 40+ years of experience providing psychotherapy, influenced by many modalities such as Hypnotherapy, Internal Family Systems, Polyvagal Theory, EMDR, Mindfulness Meditation, Holotropic Breathwork, and Transpersonal Psychotherapy. Her interest in Psychedelic Assisted Psychotherapy comes out of her experience working with trauma which has shaped her belief that non-ordinary states of consciousness are able to access deeper unconscious material as well as an expanded awareness of the truth of who we each are. She is trained in Ketamine-Assisted Psychotherapy and is currently enrolled in the MAPS MDMA -Assisted Psychotherapy Program.

  • Selma Holden, MD - she/her/they

    Research Director / Therapist – Selma is a family doctor who went into conventional medical training with a passion for harm reduction and health promotion. Selma incorporates her background in holistic modalities including yoga, mindfulness, and herbalism into her developing skills as a ketamine assisted psychotherapist. She also is currently in the MAPS therapist training program for MDMA.

  • Matthew Stevens, DO - he/him

    Medical Director / Therapist – Matt is an Integrative Family Physician originally from Idaho. He came to Maine in 2010 to complete his residency in Family medicine at Maine Medical Center and went on to complete a fellowship in Integrative medicine through the University of Arizona and Maine Medical Center. In his medical practice he found himself gravitating towards patients with mental health issues and desired a more profound exploration with his patients.

    Seeking ways to get to the deeper causes of suffering he trained in psychedelic-assisted psychotherapy, including Ketamine-Assisted Psychotherapy, and is a current trainee in the MAPS MDMA-assisted psychotherapy program.

  • Shauna Sedler, PMHNP - she/her

    Therapist – Shauna is a board certified psychiatric-mental health nurse practitioner (PMHNP) with over 13 years of experience working in healthcare. She is dual certified in psychopharmacology and psychodynamic therapy. She completed a year-long Psychedelic Assisted Therapy certification program through the Integrative Psychiatry Institute out of Boulder, CO. She is a certified somatic psychedelic facilitator through the Embody Lab. She has received additional training in MDMA-assisted therapy through the MAPS as well as treating trauma with KAT. She is also level II Reiki certified. Her style of therapy is eclectic and includes a blend of insight-oriented, mindfulness, transpersonal, humanistic and Internal family systems modalities. Before joining Riverbird she ran her own private KAT practice. She is a mom and loves to dance and be in nature. She believes building community is an integral part of healing.

  • Colin Reid, LCPC - he/him

    Therapist – Colin is a licensed clinical counselor whose approach is informed by gestalt, emotion-focused therapy, somatic and mindfulness-based therapies. He has a deep interest in meditative traditions and has spent significant periods in silent retreats in North America, Thailand, India, and Nepal. He is trained in psychedelic-assisted psychotherapy, including Ketamine-Assisted Psychotherapy, Psychedelic Somatic Interactional Psychotherapy, and has been trained in MAPS MDMA-Assisted Psychotherapy program.

  • Caroline Ginsberg, MSW - she/her

    Therapist - Caroline Ginsberg has a professional background in community organizing and non-profit fundraising. She supports Riverbird as the Research Coordinator. She has a deep passion for this modality of healing, as well as her previous work connecting people to the land, farming and the local food system. Caroline completed her MSW program at UNE, and has completed trainings as a yoga teacher and birth doula. She has also received training in Ketamine-Assisted Psychotherapy.

  • David Wright, PMHNP - he/him

    Therapist - David is a board-certified psychiatric-mental health nurse practitioner. He has undergone Ketamine-Assisted Therapy training through the Ketamine Training Center and an integrative psychiatry fellowship through the Integrative Psychiatry Institute. Additionally, he has been accepted into MAPS MDMA-Assisted Psychotherapy program. In his clinical work, he synthesizes relational psychodynamic, integrative, existential, somatic, and mindfulness perspectives. Prior to joining Riverbird, David spent many years working in numerous psychiatric departments, including outpatient, inpatient, and the behavioral emergency department, as well as psychiatric consults in various medical departments.

  • Carolyn Branson, LCPC - she/her

    Therapist – Carolyn is a therapist in private practice in Portland, Maine, with a passion for somatic psychotherapy. She has been inspired by a number of mindfulness-based therapies--among them Hakomi, Focusing and Internal Family Systems--that center our felt experience as a guide to healing. She is interested in embodied spirituality and practices authentic movement as a source of deep connection. Carolyn’s psychedelic experience includes training in ketamine-assisted therapy (through KTC), psychedelic somatic interactional psychotherapy (through PSI) and MDMA-assisted therapy (through MAPS). She feels honored to accompany people as they enter non-ordinary states of consciousness in search of greater healing.

  • Liz Strawbridge, MD - she/her

    Therapist – Liz Strawbridge is an integrative family physician who believes the path to health starts by connecting to our bodies and our truth. In her practice, she uses tools she has collected from training in conventional medicine, integrative medicine, manual medicine, plants and various wisdom traditions including Ayurveda and Chinese medicine. She is a graduate of the CIIS training program for Psychedelic-Assisted Psychotherapies, and has been trained in MAPS MDMA-Assisted Psychotherapy program, as well as Ketamine-Assisted Psychotherapy. She believes the opportunity to feel whole and healthy is a universal right.

  • Maddy Riker, RN - she/her

    Nurse, Intake Coordinator - Maddy is a nurse who has worked in a variety of healthcare systems. She has 8+ years of experience working alongside patients with terminal illness, and is particularly passionate about supporting and empowering patients as they navigate their end-of-life journey. During school, she minored in Holistic and Integrative Health, which helped to foster a passion for various healing modalities. She has completed trainings as a yoga teacher, Reiki master, and sound healer. She has also received training in Ketamine-Assisted Psychotherapy.

In Gratitude

Deep gratitude is held for our all our village, teachers, elders, guides, and friends in healing, including: Marcella and Bruce; Phil, Julane, Barry, and Gita; Pluma, Lana, Joseph, Tyler and the Jardin; the entire MAPS community; Charlotte, Harvey, Boyd, Koelle, Therese, Darryl, Peter and Jamy, among so many others.

The members of our clinic align with the North Star Ethics Pledge to support the ethical integration of psychedelic medicine into our society and culture.