OUR MENTAL HEALTHCARE TEAM
DR. TATUM - CEO
Matthew Tatum, PsyD received his Doctorate in Clinical Psychology from Rosemead School of Psychology. Early in his career, he played a key role in helping develop two integrated behavioral health departments for Federally Qualified Health Centers in Fresno County. In 2015 he assumed the Executive Director role at First Steps Recovery. There he grew a single, six bed residential drug and alcohol treatment center into a six bed detoxification facility, 16 bed residential treatment center, partial hospitalization and intensive outpatient program, and 30 bed sober living program. Expanding services such as this is a passion and life’s work for Dr. Tatum. His goal for Sierra Meadows is to expand services to the entire Central Valley and be able to provide care for all those in need.
DR. TERRY - MEDICAL DIRECTOR
Jonathan Terry, DO, ABIHM, IFMCP is proud to serve as the Medical Director for Sierra Meadows and Ascend Behavioral Health in our mission to bring comprehensive mental health services to our community. Dr. Terry is a board-certified osteopathic physician and surgeon, a general psychiatrist, a Diplomate of the American Board of Psychiatry and Neurology (ABPN), a Diplomate of the National Board of Physicians and Surgeons (NBPAS), and a Diplomate of the American Board of Integrative Holistic Medicine (ABIHM). Dr. Terry has specialty training in child and adolescent, addiction, geriatric, consult-liaison, and forensic psychiatry. He is an accomplished author, expert witness, and industry consultant and serves as lead faculty in several nationally-recognized medical schools, physician residency programs, and health professional training programs. Dr. Terry is proud to be a National Health Service Corps Ambassador and works primarily with underserved populations and in consultation for program and policy-building initiatives. His favorite game at our bright Sierra Meadows & Ascend campus is shuffleboard.
PSYCHIATRIC NURSE PRACTITIONER
Stephanie Patrick-Calvillo, MSN, PMHNP-BC is a Board Certified Psychiatric Mental Health Nurse Practitioner, with training and experience treating patients with psychiatric disorders across the lifespan and across practice environments; including inpatient and outpatient settings. Her education includes a Master of Science in Nursing degree with a focus on Executive Healthcare as well as a Psychiatric Mental Health Nurse Practitioner specialization from the University of St. Louis. Stephanie provides personalized, compassionate, and comprehensive care for patients. When not caring for patients Stephanie enjoys spending time with her family, traveling, and collecting plants.
KRISTINE WILLIAMS, EXECUTIVE DIRECTOR
Kristine is an accomplished healthcare operations professional with over 17 years experience in healthcare. She is passionate about ensuring people receive the quality healthcare they deserve. She has represented long term care facilities to the California State Workforce Investment Board and chaired the workforce committee for California Association of Healthcare Facilities. She holds a bachelor's degree in human development from California State University Hayward. Originally from the Bay Area, Fresno has been her home for the past twenty years. She is a mother of two who loves hiking and traveling with her husband.
RACHEL ENSOM, CLINICAL DIRECTOR
Rachael Ensom, LMFT is the Clinical Director for Ascend Behavioral Health; she is a brilliant therapist and an incredible leader for our group of talented therapists. Rachael creates a community where our teens feel safe to authentically engage and connect with one another. She provides an unparalleled level of support to the parents and families of our patients. We are so grateful for Rachael’s vision, passion, and dedication to the teens at Ascend. For Rachael, it’s all about Peace, Love, and Avocados!