Chad V. Johnson, PhD is a psychologist, psychotherapist, and tenured Associate Professor of Clinical Mental Health Counseling at the University of Oklahoma. He is the co-founder and President of the Oklahoma Psychedelic Collective, where he provides vision, leadership, and strategic direction in advancing ethical, evidence-based psychedelic education, research, and policy reform in Oklahoma.

Dr. Johnson has over 25 years of experience in clinical practice, teaching, supervision, and scholarship. His work is grounded in existential, Jungian, and transpersonal traditions, with a strong interest in the therapeutic, spiritual, and meaning-making dimensions of psychedelic experiences. He has completed advanced training in psychedelic-assisted therapy and research and is actively involved in interdisciplinary collaboration at the intersection of psychology, spirituality, ethics, and public policy.

Through OPC, Dr. Johnson is committed to fostering thoughtful dialogue, professional integrity, harm reduction, and responsible access—centering compassion, scientific rigor, and respect for the profound psychological and spiritual dimensions of psychedelic medicine.

Heather Hovis holds a Bachelor’s degree in Education. In 2025 she earned her Master’s in Clinical Mental Health Counseling at the University of Oklahoma. She is passionate about helping people find healing through education, advocacy, and evidence-informed practices. She is guided by a respect for and belief in the healing powers of indigenous plant medicines.

Emily R. Turner (she/her) is a Community Attorney with the YWCA, where she works to connect individuals and families with legal support and community resources during times of crisis and instability. Her work focuses on helping people navigate complex systems and access the support they need to stabilize their lives and their families.

Emily’s background includes advocacy for children, parents, and families involved in the child welfare and juvenile legal systems. She has worked in both direct representation and broader reform efforts, with a focus on supporting underserved communities and strengthening approaches that address trauma, family stability, and long-term wellbeing.

As Secretary of the Oklahoma Psychedelic Collective, Emily supports the organization’s efforts to advance education, research, and responsible policy related to psychedelic-assisted therapies. She is particularly interested in expanding thoughtful public dialogue around emerging approaches to mental health and trauma care and ensuring that these conversations remain grounded in community wellbeing and equitable access.

Angela Green earned a Bachelor of Science in Biology at Harding University and is a Licensed Nursing Home Administrator with over 20 years of executive leadership experience in the senior living industry, with a strong focus on nonprofit organizations. Throughout her career, she has been deeply committed to improving quality of life for older adults and operating mission-driven organizations.

Outside of her professional work, Angela is dedicated to advocacy and education in the realm of plant medicine. She currently serves as the Treasurer of the Oklahoma Psychedelic Collective Board, where she champions efforts to expand access to the healing benefits of plant medicines for all.

Angela has been married to her husband, Chris, for 32 years. Together, they have raised two sons, welcomed a wonderful daughter-in-law, and are proud grandparents to a cherished grandson. Angela’s life is enriched by her love of family, her dedication to service, and her vision for a more compassionate, informed future.

Christina Conrad, LPC-S, SEP, founder of Palo Santo Therapy, believes deeply in the innate ability of the body, mind and soul to heal. Christina has extensive training in the physiology and neurobiology of trauma. As an attachment-based therapist, Christina works to heal developmental trauma and the shame that accompanies it.

Christina’s expertise lies in trauma – childhood physical, sexual and emotional abuse, PTSD, combat trauma, domestic violence, sexual assault, attachment and shame resiliency. Christina has worked inpatient and outpatient facilities, as well as in domestic violence shelters and community mental health.

She blends a variety of evidenced-based and holistic approaches to healing the whole, including but not limited to meditation, Somatic Experiencing, EMDR, and Ketamine Assisted Psychotherapy. Christina is trained in MDMA-Assisted Therapy through Lykos (formerly known as MAPS, MultiDisciplinary Application of Psychedelic Science), Psilocybin Assisted Therapy and Ketamine Assisted Psychotherapy through Polaris.

Christina is the founder/director of “The Ketamine Assisted Psychotherapy: Science, Somatics and Ceremony” Certificate Program, a 100+ hour clinical training offered to Therapists, Nurses and Psychiatrists in Tulsa, OK.

Christina has is also founder /director of Open Plains Psychedelic Symposium, with the purpose of supporting increased knowledge, harm reduction and safe community connection. She is passionate about making this work available to her community and the heartland region.

Branda Jean Piersall, RN, holds bachelor’s degrees in nursing and education and has completed graduate studies in Transpersonal Psychology. She has worked as a registered nurse for 30 years, primarily in hospice and palliative care. Branda is also a death doula and has additional certifications in holistic health, nutrition, and spiritual philosophy.

She is certified through the California Institute of Integral Studies (CIIS) in Psychedelic-Assisted Therapies and Research and has completed advanced training in Ketamine-Assisted Psychotherapy.

Branda is a cofounder and board member of the Oklahoma Psychedelic Collective and a cofounder of Ok, So Tulsa, a live storytelling collective.

Chris Green is a Licensed Marriage and Family Therapist with over 25 years of experience working with individuals, couples, and families in various settings and in multiple cities. Owner and founder of Green Counseling Services, he draws on a practical and integrative approach that blends evidence-based methods with deep respect for each client’s unique story. His journey includes advanced training at the California Institute of Integral Studies (CIIS) and a certification in Ketamine Assisted Therapy through Palo Santo in Tulsa, reflecting his commitment to innovative, compassionate care at the intersection of traditional therapy and emerging psychedelic-assisted practices.

Dedicated to helping people find clarity, healing, and growth, he brings both seasoned clinical expertise and a heartfelt passion for transformative work to the board of the Oklahoma Psychedelic Collective.

Dr. Jennifer K. Clark is a Tulsa-based physician, educator, author, and consultant working at the intersection of medicine, human development, and spiritual transformation. Educated at the University of Kansas School of Medicine and trained at the Medical University of South Carolina and Harvard Medical School, she teaches, speaks, and consults internationally—guiding individuals and systems in exploring what it truly means to live, lead, and die well. She is the author of Suffer., an award-winning book that reframes suffering as a vital part of becoming fully human.

With nearly 25 years of clinical experience, Dr. Clark now brings her expertise to a private practice in psycho-spiritual advising, supporting those navigating existential inquiry, life transitions, and self-actualization.

Samantha Masquat is a licensed therapist and certified harm-reduction specialist based in Oklahoma City. Since 2017, she has worked across inpatient, outpatient, and medication-assisted treatment settings and now operates Scissortail Counseling Services. Sam supports individuals in building recovery paths that feel authentic, sustainable, and aligned with their values. She is currently completing the Certificate in Psychedelic-Assisted Therapies and Research at CIIS and founded the Oklahoma Psychedelic Professionals Network to support education and collaboration among clinicians.

A proud member of the Citizen Potawatomi Nation and lifelong Oklahoman, she is passionate about harm-reduction and advancing thoughtful, evidence-based conversations about psychedelics in the state through her work with OPC.