Sarah Mortimer, MSW, LCSW

Licensed Independent Clinical Social Worker

Provider type: Psychotherapist

Patient Age: Adult, Child & Adolescent

Services Provided: Consultation, Clinical Evaluation, and Psychotherapy

About Sarah Mortimer, MSW, LCSW

Sarah provides a holistic approach to therapy, using a positive psychology model to treat anxiety, depression, mood disorders, personality disorders, and OCD. Children, adolescents, and clients who are looking to enhance their personal growth and develop the skills necessary to live a fulfilling life benefit from counseling with Sarah. People looking to connect with themselves and others in a meaningful way in a safe and empathetic environment work successfully with Sarah.

Sarah provides individual and group counseling using DBT, CBT, Positive Psychology Model, Exposure Therapy, Narrative Therapy, Motivational Interviewing, Acceptance and Commitment therapy, and Mindfulness training.


  • ADD & ADHD
  • Anxiety Disorders
  • Autism Spectrum Disorders
  • Bipolar Disorders
  • Depression
  • Family Therapy/Parenting
  • Mindfulness Based Treatment
  • Mood Disorders
  • Obsessive Compulsive Disorders
  • Panic Disorders
  • Self Harm
  • Social Anxiety
  • Stress Management
  • Substance Use
  • Trauma/PTSD
  • Women's Health
  • Education & Certifications

    Sarah received her Masters Degree training in Clinical Social Work at Rutgers University in New Brunswick, New Jersey. Prior to her Masters Degree, she received a Bachelor's in Psychology at Roger Williams University in Bristol, Rhode Island.




    110 Hartwell Avenue, Suite 330
    Lexington MA 02421