Leadership & Staff



Program Director – Chelsi Butler

Chelsi Butler earned her Masters Degree in Psychology, specializing in Crisis Management. She holds licenses and certifications in both Massachusetts and New Hampshire, including an LSW and LADC, in addition to being a Masters Addiction Counselor (MAC). As a military spouse, she has been afforded the opportunity to travel the world, working in diverse populations, gaining invaluable real world knowledge and expertise. Chelsi’s most recent experience was in Alaska where she became a Certified Interventionist as the Clinical Director for the National Council on Alcohol and Drug Dependence. Chelsi has extensive experience in leadership positions that include working with co-occurring populations, trauma informed person centered care, and the criminal justice reform.


Ximena Sanchez Samper


Medical Director – Ximena Sanchez-Samper, MD

Medical Director of Spring Hill, Ximena Sanchez-Samper, MD is a Board Certified addiction psychiatrist. Dr. Sanchez-Samper trained at the Mayo Clinic in Rochester, MN and completed her addictions fellowship through Massachusetts General Hospital in 2004. After working with adolescents and young adults (and their families) with substance use disorders at Children’s Hospital Boston for many years, she transferred to McLean Hospital where she was the Medical Director at one of one of their residential programs.

Dr. Sanchez-Samper is an advocate of incorporating Medication-Assisted Treatment (MAT) into the comprehensive care of patients struggling with alcohol and opioid use disorders and has been prescribing Buprenorphine (Suboxone) since obtaining her waiver in 2003. She co-authored both a book chapter (“Opioid Use by Adolescents,” Handbook of Office-Based Buprenorphine Treatment of Opioid Dependence, 2011) and published an article in a peer review journal (“Adolescent Substance Abuse”, General Considerations, Pediatrics in Review, 2009) addressing the needs of patients struggling with addiction and its aftermath. Dr. Sanchez-Samper is an instructor at Harvard Medical School and enjoys lecturing nationwide on substance use disorder identification, diagnosis, and treatment.



Director of Admissions – Cynthia Kelly, LADC
Primary Therapist – Thomas J. Thelin
Primary Therapist – Melanie Zibit, MA.Ed, LADC 1