“Always remember people who have helped you along the way, and don’t forget to lift someone up.” - Roy T. Bennett



David L. Henderson, MD

Board Certified Psychiatrist

Dr. David Henderson is a board certified psychiatrist, author and speaker. He is the founder and president of Four Stones Collaborative, a mental health consulting group in Dallas, Texas. He is the medical director for Vertava Health of Texas, a residential treatment center for substance abuse treatment and recovery. In addition, he serves an an associate professor of Psychiatry for Texas Christian University (TCU) School of Medicine.

At Four Stones, Dr. Henderson sees adolescent and adult clients with a wide range of psychiatric disorders including depression, anxiety, bipolar disorder, obsessive compulsive disorder, delusional disorders, and substance abuse. He has extensive experience in psychiatric medication management, individual and family counseling, and expert witness testimony in family, civil, and criminal matters for the Dallas and surrounding county courts.

Dr. Henderson's addition experiences include facilitating, as chief medical officer, the launch of Fort Behavioral Health, a residential treatment program for adults and adolescents with a variety of mental health diagnoses. For five years, Dr. Henderson also served as the Department Chair of Psychology and Counseling at Criswell College, rebuilding its Masters in Counseling Program and starting the undergraduate major in Psychology. He also helped to develop a fully online counseling curriculum for the school. In addition, Dr. Henderson has served as an adjunct professor of Psychology and Counseling at Dallas Theological Seminary. Currently a member of the board of directors for Mental Health America of Greater Dallas (a nonprofit organization working to promote mental wellness through community education and policy advocacy), he has also been a correspondent for various media outlets including Newsweek, NBC, CBS 11, FOX 4, CW33, WFAA, and KCBI.

Dr. Henderson has presented nationally and internationally at conferences for the American Psychiatric Association, the American Academy of Psychiatry and the Law, The Christian Association for Psychological Studies, and the Christian Medical and Dental Association. He is the author of PSYCHED 31: The 31-Day Mental Detox to Cleanse Your Mind and Empower Your Soul and My Teenage Zombie: Resurrecting the Undead Adolescent in Your Home.

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N  Joseph

Natalia (Natasha) Joseph, MBS, LPC

Licensed Professional Counselor

Natalia (Natasha Joseph) received her Bachelor of Arts in Psychology from Austin College. During her academic studies she volunteered at the local fire department and was instrumental in establishing a Trauma Intervention Program through Austin College to assist first responders with psychological assessments. Natalia earned a Master's degree in Behavioral Studies from Southeastern Oklahoma State University and joined the Center for Psychological Development as an LPC intern. Once fully licensed, she specialized in individual and family counseling and neuropsychological testing. During her tenure, she had multiple opportunities to utilize the knowledge of her native language, helping adopted children from Russia and the Ukraine to assimilate into their new families. She also helped guide new parents through the emotionally challenging parts of the process. In addition to her other areas of focus, she has experience with forensic psychological evaluations and pre-op assessments for clients seeking elective surgical procedures.

Natalia is actively involved in the community and serves as a Sunday School Coordinator in a local church.