Clinical Team

hands in circle
Home » About Us » Clinical Team
Each discipline within the Headwaters team works in tandem with one another. There is constant communication between clinical, medical and spiritual professionals concerning each client.

We adhere to established codes of ethics and standards. We promote and protect clients’ rights by strictly upholding federal, state and agency regulations regarding addiction treatment and health care privacy.


J. Brad Williams

Executive Director

Brad’s professional expertise throughout his journey to sobriety has been extensive and varied, showcasing his many talents. Before joining the Headwaters family early in 2019 after getting sober, Brad spent 15 years in professional services as a technology expert, helping clients in massive litigation, regulatory, and fraud matters. As a partner at two global consulting firms, he managed teams servicing clients worldwide from New York, Boston, and Chicago. Brad graduated with honors from Northeastern University with a bachelor’s in business administration, focusing on management information systems.


Dr. Kaisha A. Thomas


Dr. Thomas’ extensive clinical and teaching experience spans more than two decades, and her numerous professional certifications and licensures reflect her expertise in the field of addiction. After obtaining her Bachelor of Fine Arts in dance from The Julliard School and her Master of Science in dance/movement therapy from the Hunter College of the City University of New York, she earned a post-master’s certificate in mental health and aging. She also earned a Master of Science in mental health counseling, followed by a Doctor of Philosophy in marriage and family therapy from Nova Southeastern University.

Dr. Raju Mangrola

M.D. – Chief Medical Officer

Dr. Mangrola is a Board-Certified Psychiatrist who has been in private practice for more than 25 years. He is board certified in General Psychiatry, Addiction Psychiatry, Forensic Psychiatry, and Psychosomatic Medicine, and is also a Diplomate of the American Board of Addiction Medicine.

Dr. Mangrola has worked in various prestigious programs as medical director where he served the needs of individuals with addiction and various psychiatric issues. Through his extensive work with addictive and co-occurring disorders, he brings a wealth of knowledge in evaluation and treatment. He has also been active in speaking forums addressing the issues related to addiction and the opiate crisis.


Dr. John Dyben


In his role as Chief of Research and Innovation, John provides support to treatment leadership through research and consultation. John continually builds upon his academic expertise through research and nationwide speaking engagements on health science, spirituality, clinical ethics, and related topics.

John’s academic training includes a Bachelor of Science in Psychology, a Master of Arts in Conflict Management, a Master of Science in Management, a Doctor of Health Science, and postgraduate studies in psychology, philosophy, and religion. John is a Master Certified Addictions Professional and a Certified Mental Health Professional in the State of Florida. He is an Internationally Certified Alcohol and Drug Counselor and a Substance Abuse Professional meeting all Federal DOT qualifications. John is a musician, writer, and a private pilot, and he enjoys spending time with his family.


Dr. Sandra Betancourt


Dr. Sandra Betancourt began her work in substance abuse and mental health in a small rural Connecticut community where she saw the need to develop a treatment track for monolingual Spanish patients. Today she is a member of the American Psychological Association, having been in substance use disorders and mental health for 25 years.

Dr. Betancourt, a PhD. in psychology, is a Florida Board Certified Mental Health Professional and a Board Certified Addiction Counselor. She worked for Dr. David Powell, at E.T.P. (Education and Training Programs,) she has vast experience with co-occurring disorders, and led the development of a treatment track for chronic mentally ill patients with substance use disorders at the Veterans Memorial Hospital. She has extensive knowledge and training in program development and supervision, and in the use of evidenced-based/research-proven practices.


Dr. Stacy Grossman


Prior to joining Hanley in 2013, Stacy earned a B.A. in Psychology from the University of North Carolina in Wilmington, and an M.S. in Clinical Psychology and a Psy.D. in Clinical Psychology from Nova Southeastern University. She is also a Licensed Clinical Psychologist in the state of Florida. Her experience in the substance use disorder arena is vast and includes mental health, substance abuse treatment, and psychological testing; private practice providing mental health and testing services to adults and kids; and outpatient adult mental health clinic, teaching and training professionals in the following areas: addiction treatment in the LGBTQ+ community, HIV/AIDS, domestic violence, and psychopathology. Her personal philosophy and that of Hanley Center were perfectly aligned with the belief that the whole person must be treated—mind, body, spirit—using resources and tools that are evidenced-based and accessible to all people.

Ursula Avilus

Ursula Avilus

DNP, PMHNP-BC – Director of Medical Services

Ursula received her nursing degree from Excelsior College in Albany, New York, and her Psychiatric Mental Health Nurse Practitioner license from Rivier University in New Hampshire. In addition, Ursula received a Bachelor of Social Work and a Masters in Nursing from Florida Atlantic University in Boca Raton, Florida. During her Master’s degree studies, she had a concentration in Administrative and Financial Leadership. Ursula has extensive experience in psychiatric nursing and nursing leadership. She is passionate about serving patients with mental illness and addictions and is committed to providing quality patient care. Before transitioning to the Hanley Center, Ursula worked for the State Hospital System in Florida and served civil and forensic psychiatric patients in Texas. In her free time, she enjoys spending time with her family and traveling.


Stephen R. Honaker

LMHC – Family Counselor

Stephen’s educational background includes a B.A. in Education, a B.S. in Accounting and a M.Ed. in Mental Health Counseling. Additionally, he is a Florida Licensed Mental Health Counselor and Qualified Supervisor and is trained in EMDR. Before joining Headwaters in the summer of 2017, Stephen served as an executive director, program director and clinical director of several programs, and also created and facilitated self-created and developed family programs for numerous treatment programs on a contract basis throughout Florida. He facilitates the week-long Family Education Program which allows him to serve not only family members but also clients throughout Headwaters.


Tara Paparo

CAC, ICADC – Director of Alumni Services

Tara is a Certified Addiction Counselor (CAC) and an Internationally Certified Alcohol and Drug Counselor (ICADC). Tara came to Hanley in 2008 as a volunteer with a passion for helping people and their families recover from substance use disorders. Tara became an employee and worked in many departments over the years, such as Admissions, Continuing Care, Human Resources, Family Program, and Executive Assistant to our Executives and Clinical Director. She encourages each person preparing for discharge to attend the many support groups that are offered weekly, in person or virtual. Tara and her team stay in contact with all alumni via phone, email, and text. Tara loves spending time with her family, husband, children, grandchildren, and dogs.

Our admissions team is available 24/7. Call us at 561.270.1753.
Address: 933 45th Street,
West Palm Beach, FL 33407

Follow Us On: