
Psychotherapy, Consultation, Education
Streff Associates
978-263-0439
We now offer Telehealth video sessions
Meet our staff

Chris Marobella, MSW, LICSW
Clinical Director
Licensed Independent Clinical Social Worker
Chris Marobella works with children, adolescents, adults, families, and has a special focus in couples therapy.
He specializes in parental coaching, creative play therapy with children dealing with anxiety, ADHD, and executive function issues. He is also adept in dealing with depression, OCD, adjustment issues, and trauma with clients of any age. A trained hypnotherapist, Chris works from a strengths-based perspective and draws on a range of modalities including CBT, ACT, hypnotherapy, cognitive and insight-oriented therapies, and play therapy.
Chris accepts Blue Cross, Tufts, United Health, United Behavioral Health, Optum, Medicare, Tri-Care, Harvard Pilgrim, Allways, and private payment.
Daniel Sanford, Psy. D.
Licensed Clinical Psychologist
Dr. Daniel Sanford works with adolescents, couples, and families.
His areas of expertise include the treatment of anxiety, depression, learning challenges, anger management, and attention deficit disorder, as well as transitions within the family system. Using a variety of therapeutic approaches including cognitive-behavioral therapy, he has worked with a broad range of clients with diverse backgrounds.
Dr. Sanford accepts Blue Cross, Tufts, Harvard Pilgrim, UnitedHealth, United Behavioral Health, Allways, and private payment.


Rosemarie Wing, LICSW
Licensed Independent Clinical Social Worker
Rosemarie works with teens 15 and older, adults, families and couples and elders. She specializes in helping people deal with grief and bereavement, palliative care, hospice and serious medical issues. She also has extensive experience helping people overcome depression, anxiety, and eating disorders, as well as anger management, trauma, and OCD. She is also able to offer Christian counseling if desired.
Rose works from a strengths-based, person-centered perspective and draws on a range of modalities including CBT and insight-oriented therapy. Rose is trained in EMDR for trauma.
Rose accepts Blue Cross Blue Shield, Tufts, Medicare, Harvard Pilgrim, United Healthcare, UBH, Allways, and private payment.

Susan Valente, MSW, LICSW
Licensed Independent Clinical Social Worker
Bicultural and bilingual in Portuguese
Susan Valente works with children, adolescents, and adults using the individual's or family's current strengths to find strategies and solutions to achieve therapeutic goals. The modalities she utilizes include behavior modification, CBT, play therapy, person-centered therapy, and psycho-education. She specializes in treating trauma, PTSD, domestic violence, parenting issues, ADHD, addictions, grief and loss, depression, anxiety, low self-esteem, and stress management.
Susan accepts Blue Cross, Tufts, United Health, United Behavioral Health, Optum, Medicare, Harvard Pilgrim, Allways, Cigna, and private payment.
Kristy Boshell (Clark), LMHC
Licensed Mental Health Counselor
Kristy works with adolescents, adults, and families. She specializes in treating trauma, anxiety, depression, mood disorders, eating disorders, self-esteem issues, sexual assault recovery, transition to adulthood, and substance abuse. The modalities she uses include cognitive-behavioral therapy, strengths-based approaches, motivational interviewing, crisis intervention, behavioral modification, individual and family therapy and psychoeducation.
Kristy accepts Blue Cross, Tufts, United Health, Harvard Pilgrim, United Behavioral Health, Allways, and Private Pay
Kristy Boshell is not currently accepting new clients


Alexander M. Davis, LICSW, CCM, CDP
Licensed Independent Clinical Social Worker
Alexander works with adults, couples, families, and elders. With over a decade of experience in geriatric mental health, he is a Certified Case Manager as well as a Certified Dementia Practitioner. He is well-versed in crisis intervention, palliative and hospice care, as well as complex medical issues. Treating adjustment disorders, phobias, stage of life issues, depression, and anxiety, Alexander works from a strengths-based, person-centered approach. He draws on a number of treatment modalities including solution-focused and insight-oriented therapy. He is also a classically trained violinist who has used music therapy in treatment.
Alexander accepts Medicare, Harvard Pilgrim, Unitedhealth, United Behavioral Health, Allways, and private payment.
Daiana da Costa, LMHC
Licensed Mental Health Counselor
Daiana works with children, adults, families and couples She specializes in helping parents to co-parent as well as creative play therapy with children dealing with anxiety, mood disorders, and ADHD. She is also adept in working with children who are high functioning and on the Autism Spectrum. Daiana has extensive experience working with people with suicidal ideations, depression, anxiety, and trauma. She is trained in working with the LGBTQ community. She has experience working with emergency services, substance use disorder programs, and managed care. Daiana works from a strengths-based, person-centered perspective and draws on a range of modalities including CBT and solution-focused therapy.
Daiana accepts Blue Cross and private payment


Michael D. Lynch, LMFT
Licensed Marriage and Family Therapist
Mike works with adolescents, adults, couples and families. While he specializes in treating men and young men with anxiety, trauma and anger issues, he has over a decade of experience with diverse populations and presenting problems. Michael’s approach is creative, integrative and eclectic, grounded in Existential psychotherapy but incorporating Cognitive Behavioral and Mindfulness-based therapies and psychoeducation. Michael is also a board member of The New England Association of Family and Systemic Therapists and is passionate about helping couples improve their relationships and learn that “If either of you is losing, neither of you is winning.”
Michael accepts Blue Cross, Tufts, United Health, Harvard Pilgrim, United Behavioral Health, Allways, and private payment.
Mike Lynch is not currently taking new clients
Marvin Lew, Ph.D., ABPP
Licensed Clinical Psychologist
Dr. Marvin Lew works with adults, adolescents, children and their families. He is Board Certified in Cognitive and Behavioral Psychology and his practice is focused on those psychological treatments that have demonstrated success in the professional literature. Dr. Lew has worked as a clinician, supervisor, and clinical director in a variety of medical, educational, and clinical environments. He has practiced mindfulness for 20+ years, has been intensively trained in DBT and integrates components of these approaches along with ACT in his treatments. Dr. Lew specializes in the treatment of anxiety and depressive illnesses for adolescents and adults. Additionally, Dr. Lew will work along with children and their families in developing appropriate behavior
modification and self-management strategies for childhood anxiety and attention problems.
Dr. Lew accepts Blue Cross, United Health, Harvard Pilgrim, United Behavioral Health, Allways, and private payment

_edited.jpg)
Johanna Spencer, LMHC
Licensed Mental Health Counselor
Johanna Spencer is a Licensed Mental Health Counselor with over 25 years experience working with college students, young adults, couples, adults, and families. She has practiced mindfulness for 20 years and has specialized training in stress reduction, anxiety and depression management, relationships, addiction, trauma, food/nutrition, mindfulness of self- compassion and work with highly sensitive empathic individuals.
Her eclectic treatment strategies are holistic, strength-based, person-centered, and are designed with attentive listening to clarify clients' goals and impediments. Tools might include CBT strategies, creative exploration (art, writing, journaling), time in nature, mindfulness, spiritual exploration, support for increased self care, 12 Step work, and consultation with other professionals.
Johanna believes we all can benefit from caring support to further wellness, growth, and ease of life transitions. She strives to collaborate with each client’s inner wisdom and creative process to move forward to increased wellness and ease the next steps on their life’s path.
Johanna currently accepts private payment.
Brittany Ross, LMHC
Licensed Mental Health Counselor
Brittany works with older children, adolescents, and young adults. With several years of experience working with youth in the juvenile justice system, she has adopted a strengths-based and person-centered approach to assist adolescents and young adults navigate significant life challenges. Modalities she utilizes include Dialectical Behavioral Therapy (DBT), Motivational Interviewing, and Psychoeducation. She specializes in treating ADHD, anxiety, depression, trauma, mood disorders, and behavioral issues.
Brittany currently accepts OPTUM, Harvard Pilgrim, Unitedhealth, United Behavioral Health, Allways, and Private Payment.
