Our Partners
Meet the clinicians and treatment organizations we work alongside to support patient recovery.
At Luminous Health, we collaborate with clinicians and treatment centers whose work complements our physiology-first approach. These partnerships allow patients to receive coordinated care across psychiatry, therapy, rehabilitation, and integrative medicine.
Dr. David Brian Wexler
Dr. David B. Wexler is a psychiatrist specializing in adult, geriatric, and adolescent psychiatry, with expertise in biological psychiatry and psychopharmacology. With more than three decades of clinical experience, he has worked in private practice, hospital systems, and academic settings both nationally and internationally.
Dr. Wexler has served as a staff psychiatrist in inpatient and outpatient settings, Director of Consultation and Liaison Services, Director of a university teaching hospital psychopharmacology clinic, team psychiatrist for an NFL franchise, and physician wellness psychiatrist for a large managed care consortium. He has also held academic appointments at several medical schools and provided consultation to primary care physicians and medical specialists.
He works collaboratively with each patient’s treatment team, including therapists, primary care physicians, and specialists, to support coordinated and effective care. In person and telemedicine visits are available. Outside of medicine, Dr. Wexler enjoys playing the oboe and piano, staying physically active, studying foreign languages, and traveling.
Siana Ọrun-Walker is an initiated Iyanifa and Olóríṣà and an Indigenous woman of Seminole, Cherokee, Blackfoot, Nassau Native, Yoruba, and Fulani Nigerian heritage with more than 15 years of experience in mental and behavioral health. She specializes in experiential therapies, group facilitation, and transformational programming that support emotional intelligence, self-acceptance, and sustainable recovery.
She holds a Certification in Psychedelic Assisted Therapy (CPAT) from Naropa University and is a licensed Psilocybin Facilitator through the Oregon Health Authority. Siana earned her Bachelor of Arts from Virginia State University, completed MITT (Mastery in Transformational Training), and holds multiple certifications in trauma-informed care, somatic processing, crisis intervention, family systems, life coaching, and culturally proficient service delivery.
She is also the founder of a mental health and community empowerment consulting firm and is dedicated to helping individuals experience healing, transformation, and deeper human connection.
(She/We/They)
Siana Ọrun-Walker
T.O.P. Elite Care
Dr. Zachary Wilson serves as CEO of the medical division in a strategic collaboration between Top Medical Group and Top Elite Care in addition to leading his clinical practice. In this role, he oversees medical services supporting clients facing complex medical, mental health, and addiction challenges.
T.O.P provides a multidisciplinary, high discretion support model designed for individuals whose personal, professional, or public lives require a coordinated and confidential approach to care. By integrating medical oversight with expertise in behavioral health, wellness, and client support, the organization delivers both immediate intervention and long term strategies that promote stability, recovery, and overall wellbeing.
