Meet our staff

Charles Streff, Ph.D.

Founder, Director Emeritus

Licensed Clinical Psychologist

Dr. Charles Streff, Ph.D. has been working with children, adolescents, adults, couples, and families for over 35 years. His goal in therapy is to create a safe environment for individuals to feel comfortable enough to share their concerns and possible solutions.  He has conducted workshops and professional training around the treatment of PTSD in all age groups, using cognitive-behavioral approaches, person-centered psychotherapy, as well as hypnotherapy.  In the last fifteen years he has specialized in working with adolescent and adult males with a wide range of issues such as loss, depression, anxiety, sexual identity, and adjustment to life’s many changes.

  At the present time he has limited therapy hours available.

Dr. Streff accepts Medicare and private payment. 

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 Pay

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

Joshua Weiss, LMHC

Licensed Mental Health Counselor

Joshua Weiss works with children, adolescents, young adults, adults, and families.

His areas of specialization include anxiety, mood disorders, ADHD, trauma, relationships, grief and loss, eating disorders, communication skills, and improving self-esteem. The modalities he uses include cognitive-behavioral therapy, behavior modification, play therapy, strengths-based therapy, person-centered therapy, and psycho-education. Mr. Weiss is also an adjustment counselor in the Pepperell school system.  

Josh accepts Blue Cross, Tufts, United Healthcare, United Behavioral Health, Optum, Harvard Pilgrim, Cigna, Allways, and private pay.

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

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 and private payment.

William O'Brien, Psy. D.

Licensed Clinical Psychologist

Dr. William O'Brien works with children, adolescents, adults, and families.

He has experience teaching adolescents as well as adults and is familiar with learning challenges and educational needs. He specializes in treating depression, defiant behavior in children and adolescents, substance abuse, family changes and conflict, and adjustment issues for adults and young-adult males.  Dr. O'Brien draws from a number of different theoretical approaches including CBT and DBT, and believes strongly in the importance of relationship therapy.

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Dr. O'Brien is not currently accepting new clients