William Winslow, LCSW, LADC, CCS

Education: University of Southern Maine, Portland, ME | MS Social Work | 2019 Credentials: Licensed Clinical Social Worker (LCSW) | Licensed Alcohol and Drug Counselor (LADC) | Certified Clinical Supervisor (CCS) Previous Experience: William recently worked to provide services for substance abuse, homelessness, and co-occurring mental health disorders with adults; serving their needs through collaborative […]

Marissa Valliere, LMSW-CC

Education: University of Maine, Orono, ME | MS Social Work | 2025 Credentials: Licensed Master of Social Work, Clinical Conditional (LMSW-CC) Previous Experience: Before joining Nasson, Marissa worked on a assault crisis line where she was able to focus on helping people access needed resources and supporting them through challenging moments. Professional Focus: Marissa strives […]

Benjamin Martin, DMD

Education: University of New England, Portland, ME | Doctor of Dental Medicine | 2023 Credentials: Doctor of Dental Medicine (DMD) Previous Experience: Prior to Nasson, Dr. Martin worked at a non-profit clinic in Augusta, ME Professional Focus: Ben strives to provide dental services to underserved populations and areas. A native of Sanford, Ben is eager […]

Chauna Oak, RDH

Education: University of New England, Portland, ME | BS Dental Hygiene | 2020 Credentials: Registered Dental Hygienist (RDH) Previous Experience: Chauna was a dental assistant for five years before becoming a hygienist. Before working at Nasson, she worked in pediatrics and in private practice. Professional Focus: Chauna is passionate about creating a calm and enjoyable […]

Jodie O’Keefe, M.Ed., LCSW

Education: Lesley University, Cambridge, MA | Masters in Education | 2000 University of New Hampshire, Durham, NH | MS Social Work | 2017 Credentials: Masters in Education (M.Ed.) , Licensed Clinical Social Worker (LCSW) Previous Experience: Jodie was previously an Elementary School Teacher working in an urban inner-city school district for 12 years. More recently […]

James Hoff, PA-C

Education: Seton Hall University | Nutley, NJ | MS Physician Assistant | 2020 Credentials: Physician Assistant (PA-C) Previous Experience: My prior experience is in critical care with a focus on neurocritical care and I have experience in trauma/surgical critical care. In addition, I currently work per diem in neurocritical care and hospitalist medicine in Maine. […]