Leadership Team

Mary Louise McEwen, Superintendent
Mary Louise McEwen has worked in the field of Mental Health for more than 23 years. Ms McEwen has a bachelor’s degree in nursing and a master’s in business administration. She recently retired from the Maine Air National Guard after serving 28 years in both the medical and human resource fields.

Other Team Leaders


William Nelson, MD, Medical Director
Email: Dr. William Nelson

Phone: 207-624-4657
FAX: 207-287-6123

Responsibilities: Supervision over medical staff and over quality of medical care.

Dr. Nelson has been serving as Medical Director of the Riverview Psychiatric Center (formerly AMHI) since June of 2002. He also serves as Professor of Psychiatry at Dartmouth Medical School. He is a board-certified psychiatrist in the specialties of adult and geriatric psychiatry. He is a distinguished fellow of the American Psychiatric Association and an active member of the Maine Psychiatric Association and the Maine Medical Association. He is a graduate of Duke University, West Virginia University, and the University Connecticut Health Center. He is the author of over 50 publications and major national and international presentations.

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 Janet Barrett, Director of Rehabilitation

Janet steadfastly presents the best for her clients and her profession while maintaining a professional demeanor. Her knowledge of the field of Rehabilitation is impressive, continually increasing and most admirable. Her organizational skills are impressive as she seems to have an excellent grasp of concepts which promote increased efficiency and effectiveness. She consistently demonstrates respect, caring and compassion in her interactions with clients. Janet's enthusiasm, creativity, work ethic and sheer persistence have been monumental in engaging clients in their own recovery.

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Robert Patnaude, Safety Director
Email: Robert Patnaude

Phone: 207-624-3917
FAX: 207-287-6123

Responsibilities: To develop, coordinate and monitor safety plans and evaluate employee and client practices which may compromise safety.

Robert J. Patnaude was appointed Safety Officer in December 2003. He is a member of Executive Leadership, and the Committees comprising Safety, EOC, Risk Management, NAPPI, Managers, and Security. Prior to joining AMHI/Riverview, Patnaude, who holds numerous certifications in areas of fire and life safety, security, and emergency response, was employed by Homeland Security. Prior to that, he has spent nearly (30) years encompassing work as a Firefighter/Paramedic and Public Education Officer with the City of Augusta, a police officer, an emergency manager, rescue diver, school teacher, and consultant.

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Angie Newhouse, Staff Development Director
Email: Angie Newhouse

Phone: 624-3916

Angie graduated in 2004 from the University of Maine at Augusta with a Bachelors Degree in Mental Health and Human Services. She started her career as a Mental Health Worker and worked at the Augusta Mental Health Institute for 14 years. She left State service to pursue her education and gain knowledge in the community.

Angie returned to State Service at Riverview in 2005 to work in the Staff Development Office. She became the Director of Staff Development in April 2006. Angie is also Regional Faculty for the American Heart Association and has been training for over 25 years.

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Holly Dixon, Peer Services Director
Email: Holly Dixon

Phone: 624-4610

Holly is responsible for integrating peer support into all aspects of client care to ensure client voice is heard.

Holly has been at Riverview Psychiatric since 2004, first as a member of the social services department and in 2005, Amistad's Peer Support program within the facility. Holly is responsible for supervising peers working within the facility, the Assertive Community Treatment team, and recovery classes. Prior to coming to Riverview, Holly worked in children's mental health services for 9 years in various capacities and is currently a school-based clinician in an elementary school part time. Holly received a bachelor's degree in Psychology and a master's degree in Social Work from the University of Maine at Orono. She has made presentations on peer support, recovery, and consumer perspective at several conferences and universities within the state of Maine as well as nationally.

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Stephanie George-Roy, Social Work Director
Email: Stephanie George-Roy

Phone: 624-3919

Stephanie received her Bachelors Degree in Rehabilitative Psychology and Studio Fine Arts from Emmanuel College and her Master of Social Work Degree from Simmons College in 1996. She worked for eight years in Boston in the community mental health field as a Director of a wide range of supported housing options for individuals facing homelessness and chronic mental health issues. From 2000 to 2006 Stephanie was the Director of Residential and Children’s Services at a non-profit organization in Brunswick serving adults and children with developmental disabilities, Autism and mental health issues in the areas of community residential services, day habilitation services, and case management. Stephanie joined Riverview Psychiatric Center in 2006 as the Director of the Social Services Department.

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