Our Board & Staff

The Board of Trustees is comprised of professionals from both the business sector and human services field. All have a significant commitment to the primary mission of the agency, which is to always make quality treatment available to those in need, regardless of ability to pay.

SENHS Board Members:

  • Robert Ullrich, Chairperson
  • Jennifer Cullen, Vice Chairperson
  • Thomas F. Parks, Jr., Treasurer
  • Dr. Robert Gaetjens MD, MPH
  • Lawrence Kane, MD
  • Kevin MacLeod
  • Alec L. McEchern, Esq.
  • Mark Stickney
  • Frank Cassidy
  • Bill Webb
  • Patte Ardizzoni
  • Devin Fleming


SENHS Management Team:


Chief Executive Officer

Sharon Drake has been working in the Human Services field for more than 30 years. She has been a certified instructor for CPI since 1995.  She has a Bachelor of Science Degree in Psychology from Notre Dame College and an Associate’s Degree in Human Services from NHTI.  Previous work history includes:  Program Specialist and Interim Administrator for the State of NH Homeless and Housing Unit; Executive Director for the NH Coalition for the Homeless; Program Director at NH Community Loan Fund for the Home of Your Own Program, Individual Development Account Program, Single Family Lending, and Special Needs Housing; Executive Director of the Women’s Business Center, Chief Executive Officer (CEO) of Serenity Place, a substance use disorder treatment facility, and currently the CEO of Southeastern NH Alcohol & Drug Abuse Services (SENHS).  Sharon served as Chair of the Emergency Shelter & Homeless Coordination Commission appointed by the Governor of the State of NH for 12 years, is a graduate of the Concord Chamber of Commerce and the Manchester Chamber of Commerce Leadership Programs, a graduate of the Institute for Nonprofit Management Antioch New England Graduate School, and a recipient of the Dale Carnegie Highest Achievement Award.


Clinical Director

Nick Pfeifer brings over 20 years of knowledge and experience to SENHS from the behavioral and mental health fields.  Nick is dually licensed as a Master Licensed Alcohol & Drug Counselor and a Licensed Independent Clinical Social Worker.  Nick received his Master’s in Social Work from the University of NH and earned his Bachelor’s degree in Psychology from Keene State College.  Nick has worked in a variety of treatment settings for substance use disorders (outpatient, intensive outpatient, residential and schools) and mental health (residential and Community Mental Health Centers), has experience working with both adolescents and adults, and worked extensively with individuals struggling with co-occurring disorders.  Nick brings a diverse skill set to our organization from working in a wide variety of roles throughout his career (clinician, clinical supervisor, program director, consultant, trainer and educator).  Most recently, Nick worked for Beacon Health Options in conjunction with the WellSense Health Plan, managing the Substance Use Disorders benefit in the State of NH, representing one of the Managed Care Organizations (MCO) in the state.  Nick also continues to provide education in addiction to students in the School of Graduate and Professional Studies Program at New England College.  Nick is not only an asset to our organization, but also an incredible addition to the SENHS clinical staff.

Assistant Clinical Director

Marco Thompson is a Masters Licensed Alcohol and Drug Counselor (MLADC) as well as a Licensed Independent Clinical Social Worker (LICSW). Prior to licensure, Marco obtained a bachelor’s degree as a dual major in Sociology and Criminal Justice Studies at the University of New Hampshire (UNH) in Durham in 2008. He continued his education at UNH and earned a Master’s degree in Social Work (MSW) in 2010. During his studies at UNH, he was an intern for the Strafford County Department of Corrections within the Education Department in 2008; the Strafford County Drug Treatment Court as a Case Manager in 2009; and Southeastern New Hampshire Services as an Intensive Out-Patient (IOP) Counselor in 2010. Upon graduation in 2010, Marco transitioned from his role as an intern and was offered a position as full time employee within the Drug Treatment Court’s IOP. After three years of working as an IOP counselor, Marco was promoted to Clinical Program Director of IOP and Treatment Manager for Strafford County in 2013. In the summer of 2016, Marco was promoted to Assistant Clinical Director of SENHS and still holds this positon today. Marco is currently responsible for the direct supervision of our Agency’s clinical programs and personnel. Marco is also responsible for training and the clinical supervision of both existing and new staff members to develop and build effective client service delivery. He takes great pride in being responsible for maintaining an environment of safety, compassion, dignity and respect, while striving to maintain a high level of professional and ethical standards.