Treatment & Services

West End Clinic: Our staff members provide addiction treatment services and counseling.

Staff Information/Biographies

Jennifer Blewett LCSW, Clinical Care Coordinator
Marc G. Bolduc, MSW, LICSW
Frank Dibert, PhD
Lisa Du Breuil, LICSW
Karsten Kueppenender, MD, Associate Medical Director
Maureen P. McCarthy, MHA, Operations Manager
Rachel Meyers-Weinerman, Patient Services Coordinator
Estee Sharon, PsyD
Georgia Stathopoulou, PhD
Carlos Suarez, M.D.
Juliana Tilleman, Intake Coordinator
Stephanie Troy LICSW
E. Nalan Ward, MD, Medical Director

Jennifer Blewett, LICSW
Jennifer Blewett is a Licensed Clinical Social Worker and is a Certified School Social Worker for grades K-12. She earned her Masters degree in Clinical Social Work from Boston College School of Social Work in 2010. She has worked in the mental health profession since 2007 and has experience treating individuals, couples, and families with psychological problems in various inpatient and outpatient settings. Her areas of interest include the treatment of addictive behaviors, co-occurring psychiatric disorders, social skills training and related health and social problems. She has had training in Cognitive Behavior Therapy (CBT), Motivational Interviewing and Group Psychotherapy. Jennifer is dedicated to helping patients transform their lives through a cognitive behavioral structure, and to both pursue and achieve their personal and therapeutic goals.

Jennifer provides both individual and group psychotherapy, in addition to group facilitation. She leads the Readiness group, Computerized Cognitive Behavior Therapy (CBT) group and co-leads the “New Start, What’s Next” process group for patient’s in transition with their treatment at the West End. As the Clinical Care Coordinator at the West End Clinic, Jennifer also facilitates organization of the Day and Evening IOP programs. She is currently a member of the National Association of Social Workers (NASW), Association of Group Psychotherapy (GPA) and the Northeastern Society for Group Psychotherapy

Marc BolducMarc Bolduc, MSW, LICSW
Marc G. Bolduc is a Licensed Independent Clinical Social Worker and has worked in the mental health profession since 1994. He has experience treating individuals, couples, and families with psychological problems in various inpatient and outpatient settings. He is committed to guiding people who are concerned about becoming healthier, who have challenges with motivation, and who struggle with self-directed behavior change. His areas of interest include the treatment of addictive behaviors, co-occurring psychiatric disorders, and related health and social problems.

He has an enduring enthusiasm to the mission of educating and developing practitioners in the application of effective treatment for addiction. He is a clinical field supervisor for Boston College Graduate School of Social Work and Simmons College School of Social Work. He has been on staff at Massachusetts General Hospital, Department of Psychiatry, West End Clinic since 2004. He holds positions in Addiction Services and Inpatient Consultation Liaison Psychiatry Service. He conducts individual, couples, and group therapy at the West End Clinic’s Outpatient Practice and provides addiction consultations on the MGH inpatient medical/surgical units.

His academic degrees include a Bachelor of Arts in Psychology and Social Work from Westfield State College, and Master of Social Work from the Boston College Graduate School of Social Work. He is a member of the following professional associations: National Association of Social Workers, National Association for Addiction Professionals, & Association for the Advancement of Social Work with Groups, Inc.

Lisa Du Breuil, LICSW
Lisa earned her MSW at Boston University and has 10+ years experience working with dual-diagnosis patients. She currently sees people for initial assessments, ongoing individual therapy and leads the psycho-educational groups for the Intensive Outpatient Program here. Prior to joining the West End Clinic, Lisa worked with adolescents with a wide variety of behavioral challenges and their families. While Lisa enjoys helping patients with all sorts of life challenges, she is particularly interested in treating people who are dealing with addictions as well as eating disorders/food concerns.

Estee SharonEstee Sharon, PsyD
Estee Sharon, Psy.D. is a licensed clinical psychologist practicing at Massachusetts General Hospital and in a private office in Boston. She is an Assistant Clinical Professor of Psychology in the Department of Psychiatry at Harvard Medical School and Massachusetts General Hospital. Dr. Sharon earned her Master degree in Clinical Psychology from Tel Aviv University in Israel and her Doctor of Psychology degree from Massachusetts School of Professional Psychology (MSPP) in Boston. Later, she returned to MSPP to earn a Master in Science degree in Clinical Psychopharmacology.

Dr. Sharon provides short and long-term psychotherapy using psychodynamic, cognitive- behavioral or system approaches. She treats individuals and couples presenting with an array of relational difficulties/conflicts or emotional disorders including - but not limited to -addiction, anxiety, depression and bereavement. In addition, Dr. Sharon has expertise in substance use disorders and in working with spouses of substance abusing patients who seek help in bringing their loved ones to treatment while also reflecting upon their own co-dependence.

At Harvard Medical School, Dr. Sharon teaches third year medical students a Patient Doctor III class and she is an examiner in the Observational Structured Clinical Exam for second and fourth year students. She also provides seminars in Cultural Sensitivity among Diverse Patients in the US to international students visiting through Harvard Medical International. Dr. Sharon is an active member of the Cultural Competent Care Education Committee at Harvard Medical School and of the Diversity Committee at the Department of Psychiatry at Massachusetts General Hospital. Prior to her full time dedication to teaching and patients care, Dr. Sharon served as the Associate Director of the Addiction Services at Massachusetts General Hospital.

E. Nalan Ward, MD
Dr. Ward is the Medical Director of the Addiction Services at the West End Clinic at Massachusetts General Hospital and Instructor in Psychiatry at Harvard Medical School. She received her medical degree from Ankara University School of Medicine and completed her residency on psychiatry at the SSK Ankara Training Hospital in Turkey.

Dr. Ward then pursued her career in the U.S. and completed her psychiatry residency and fellowship in addiction psychiatry at Boston University Medical Center. Dr. Ward has been working as the medical Director of North Charles Institute for Addictions, Methadone Program since 2002. Her areas of interest are opioid substitution therapies, pain management of addicted patients, and eating disorders in substance abusing patients. Dr. Ward is board certified in adult and addiction psychiatry.