Staff

MEET THE SERENITY AT SUMMIT STAFF

We’re proud to have such a wide range of addiction counselors and specialists on our team. Together, our team brings years of experience in treating addiction and helping clients fight to reach addiction recovery. It’s our goal to offer a new chance, for everyone we treat, to redeem life and recover successfully.

Dr. Shorta Yuasa

Medical Director

Dr. Shorta Yuasa serves as the Medical Director for Serenity at Summit and is proud to support Serenity in its fight against substance abuse. Dr. Yuasa received his undergraduate degree from Columbia College before attending Tufts University School of Medicine and getting his residency training at the Medical College of Pennsylvania.

Before working for Serenity at Summit, Dr. Yuasa spent over ten years serving in the substance abuse treatment industry through various roles. He holds a membership in the American Board of Addiction Medicine as well as the American Board of Emergency Medicine. He is also a fellow of the American Society of Addiction Medicine and the American Academy of Emergency Medicine.

Mary O’Neill

Treatment Consultant (Serenity New England)

Mary O’Neil is a marketing, public relations, and communications professional with over 20 years of experience. Prior to joining Summit Behavioral Health, O’Neil was a member of the senior leadership team at Merrimack Valley Hospital in Haverhill where she served as the director of marketing and public relations. She was later promoted to the northeast regional marketing director for Steward Health Care, the hospital’s parent company. In addition to a successful career in marketing and communications, O’Neil has held adjunct faculty positions at Northern Essex Community College and, most recently, at the Summerfuel Pre-College Program at Harvard where she teaches public speaking and debate.

O’Neil is actively involved in her community and currently serves as the president of the board of directors for the Haverhill YMCA and as a member of the YMCAs of the North Shore corporate board of directors. In 2011, O’Neil was selected as a YWCA’s Woman of the Year and received the 2013 Book of Golden Deeds Award from the Exchange Club of Haverhill. O’Neil holds a master’s degree in visual and media arts from Emerson College in Boston.

Tricia Kostin MSW, LCSW, LCADC

Program Director (Summit at Florham Park)

Tricia is a licensed clinical alcohol and drug counselor and a licensed clinical social worker. She obtained her master’s degree from Rutgers University School of Social Work and has over 10 years of experience in various positions and treatment settings.

Starting in an outpatient ambulatory detox/maintenance program, Tricia was able to see the need for education and support for both the consumers as well as their families. Tricia transitioned from a medically-assisted modality of treatment to delving into intensive outpatient services. She initially found her niche in working with young adults and their families. Currently, Tricia focuses much of her energy on program development and team building.

As the clinical director of Serenity’s Florham Park location, Tricia and her team work closely to provide the best treatment outcomes for clients and their families. Utilizing both group and individual therapy, Tricia ensures everyone is involved, informed, educated and supported throughout their journey.

Christina Varano-Sanabria

Clinical Director (Summit at Union)

Christina D Varano-Sanabria received her master’s degree in mental health counselling and addiction from Caldwell University. Over the course of her career, which spans more than a decade, she has exceeded requirements in order to obtain multiple licenses which include her LPC, LCADC, and ACS in the state of New Jersey. She believes in a client-centered approach utilizing DBT and CBT methods and has worked in both clinical and private practice settings addressing issues ranging from Addiction to co-occurring disorders.

Her undergraduate degree was completed in psychology at Manhattan College. She is also certified in treating anger management and is a national board-certified counselor. Christina’s hobbies include spending time with her husband and her 1-year-old puppy Flash, reading, and spending time in nature.