Tour Embark at Atlanta North
Embark at Atlanta North is a peaceful, restorative place. We match a comfortable, nurturing environment with proven, reliable treatments and therapies that will enable your teen to heal and grow.
Shellina Jenkins is a Licensed Professional Counselor in the state of Georgia and a Certified Professional Counselor Supervisor. Shellina gained interest in helping individuals fight the battle against substance abuse and mental health as a young child. She was eager to find a way to help those in need very close to her. She earned her Bachelor of Arts Degree in Psychology with a minor in Sociology from Georgia State University, and her Master’s Degree from Fort Valley University. Shellina has a variety of work experience with adolescents and adults in corrections, drug court, foster care, mental health clinics, working with individuals struggling with substance abuse and mental health issues. Prior to joining Embark Behavioral Health, Shellina has held leadership positions in mental health clinics and corrections. She has also worked in private practice settings to assist in the treatment of depression, anxiety, bipolar disorders, SPMI and substance abuse. Shellina has provided training on suicide prevention/intervention, substance abuse and mental health in community-based settings and in corrections.
Shellina’s philosophy on behavioral change involves several treatment modalities such as role modeling / teaching to encourage positive thoughts & behaviors, focusing on positive outcomes utilizing CBT, DBT, solution focused approach etc.
Natasha is an alumnus of Georgia State University where she graduated with a Bachelor of Science, Business Administration degree with a concentration in Managerial Science. She also Graduated from Georgia Military College Phi Theta Kappa Cum Laude with an Associate in Science, Business Administration degree. Natasha has a passion for human service and has expended over twenty years of her career working for the State of California, Department of Health and Human Services. She worked as a leader in her church, Friendship Community Church where she was a facilitated young adult and children and youth groups. Natasha has a desire to make difference in all she does and have a positive impact on the lives of people she has interactions with.
Dr. Amanda N. Nicholson, Ph.D. is a Licensed Marriage and Family Therapist who specializes in Sex Therapy. Dr. Amanda specializes in individual, family therapy, coaching, and couple’s therapy. Her areas of specialty include sexuality, religion, relationship issues, anxiety, trauma, and depression. Dr. Amanda received her Bachelor of Science Degree in Behavior Analysis with a minor in Africana Studies from Savannah State University, Master of Family Therapy from Mercer University, Master of Education in Human Sexuality Studies with a concentration in Sex Therapy from Widener University, and Doctor of Philosophy in Human Sexuality Studies with a concentration in Sex Therapy from Widener University. Dr. Amanda is a trauma informed therapist who is trained in Trauma Focused Cognitive Behavior Therapy. Having a family theory informed approached Dr. Amanda enjoys using Narrative, Emotional Focused, and Structural therapies in her therapeutic approach while collaborating with her students and families about their care. Dr. Amanda is also a college instructor with five years of teaching experience in the University System of Georgia.
In her free time Dr. Amanda enjoys reading books that whisk her imagination off to new places, practicing yoga, eating food good for the soul, watching movies that make her laugh until she cries and enjoying life to the fullest.
Dr. Cassandra Simms is board certified in Adult and Child/Adolescent Psychiatry by the American Board of Psychiatry and Neurology.
Dr. Simms received her medical degree from the University of Kentucky in 1999. She completed her Psychiatry Residency and Child/Adolescent Fellowship at the University of South Carolina. During her residency, she served on the Pharmacy and Therapeutics Committee, Residency Selection Committee, and was chosen to be Chief Resident for the Child & Adolescent Fellowship Program.
In May 2004, Dr. Simms moved to Chattanooga Tennessee with her family where she started her professional career with Focus Psychiatric Services, Inc. and Parkridge Valley Hospital treating children and adolescents in an outpatient and inpatient setting until August 2012.
In August 2012, Dr. Simms took a position with Community Health Systems via Skyridge Medical Center now known as Tennova Healthcare in Cleveland Tennessee. She provided outpatient care to adults and children at Behavioral Health of Cleveland and inpatient care to adults at Pineridge Treatment Center (Tennova Behavioral Health) via acute hospitalization, inpatient consultation and intensive outpatient programs until August 2015.
It was in August 2015, Dr. Simms transitioned to her outpatient private practice as a co-owner of Comprehensive Psychiatric Care, PLLC in Chattanooga Tennessee. She has been joined by several therapists and a Nurse Practitioner to provide services to our beloved community. Dr. Simms collaborates with Healthconnect of America to provide supervision to nurse practitioners in the surrounding area and with Allied Behavioral Services, Inc. to provide consistent medication management services to their clients.
In November 2020 while continuing her outpatient services, Dr. Simms was thrilled to join the Embark Behavioral Health’s newest program, The Forge School, a behavioral residential treatment center for boys in Benton Tennessee. She will serve as the Psychiatric Service Director to oversee and provide the psychiatric care to the residents referred to the facility.
During her 17 years as a provider, Dr. Simms has also found a passion for teaching students through her clinical experiences. In 2009, Dr. Simms became a faculty member with the University of Tennessee School of Medicine where she briefly served as preceptor for medical students for a portion of their psychiatry rotation. In 2012, Dr. Simms contracted with Lincoln Memorial University’s Physician Assistant program providing their behavioral health clinical experience. Dr. Simms hopes through her current clinical experiences that she can continue to educate upcoming providers and provide them with a thorough clinical psychiatric experience. This is with the hope to make upcoming providers aware of the need for good psychiatric care in our communities and to reduce the stigma associated with mental health.
About Our Location
located just outside the Atlanta, Georgia metro area.
A healing, nurturing, and safe environment to help families and their children address and overcome the issues that may be affecting their everyday lives.
Individual, family, and group therapy, therapeutic/peer mentoring, and parent coaching.
Interventions & Therapies
As a pioneer and leader in quality outcomes, we have gathered more data than any other provider over the past 10 years and only offer treatment that we know drives long-lasting, sustainable results. We offer customized, individual therapeutic programs to enable your daughter to thrive. Specialized services and areas of focus include:
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Short-term treatment typically lasts one to three months. Teens best suited for short-term treatment often have engaged in other therapeutic programs like outpatient or intensive outpatient therapy and need a 24-hour continuum of care. Our unique, relationship-based treatments use extensive data collection to improve treatment plans and interventions in real-time, creating long-lasting, sustainable, verified results.