Our staff provide different areas of specialization and expertise covering a broad range of problems, treatment styles, and modalities. We are able to provide coordinated treatment involving different specialists when needed, such as dietician/nutritionist, child and adult psychopharmacologists.


Peter Musliner, MD, Director and co-founder of Boundaries Therapy Center, has evolved a diagnostic and treatment approach that emphasizes a recognition of the interplay between environmental, personal and biological factors. Trained as both a child and adult psychiatrist, and grounded in both traditional psychodynamic and symptom-focused, time-limited therapies, he has increasingly made use of the rapidly expanding knowledge about brain circuitry/chemistry and its role in psychiatric disorders. Psychopharmacologic evaluations and treatment management has become a large part of what he offers to his patients, both adult and adolescents. He works in conjunction with the other therapists at Boundaries to provide medication evaluations and consults for their clients in addition to the ongoing treatment.

Stephanie Tournet, MD, is a graduate of the University of Pennsylvania, where she majored in Biological Basis of Behavior. She proceeded to Boston University for a Masters in Medical Sciences, followed by a Masters of Public Health. She received MD degree from Boston University and completed her adult psychiatry residency at the Harvard Longwood Psychiatric Residency Training Program. She completed a child psychiatric fellowship at the Cambridge Health Alliance. She has a faculty appointment through Harvard Medical School and teaching and supervisory responsibilities at Cambridge Hospital. She is board certified in Adult and Child Psychiatry. Dr. Tournet specializes in treating children, adults and families who are experiencing emotional, behavioral and relationship difficulties. She treats mood and anxiety disorders, autistic spectrum disorders, ADHD, learning disorders, and eating disorders. She works in conjunction with the clinical therapists at Boundaries in supporting their clients with medication evaluations and consults.

Laurie Gray, MD, received her degree from University of Pennsylvania School of Medicine where she went on to complete a General Psychiatry Residency. She then completed a Child and Adolescent Psychiatry Fellowship at Cambridge Health Alliance, Cambridge MA. At Boundaries she conducts comprehensive initial evaluations and assessments and treats a variety of diagnoses. She is familiar with the full range of psychotropic medications. Dr. Gray has a special expertise in bereavement and CBT for mood and anxiety disorders.

Dee Shaligram, MD, is a Board certified Adult and Child Psychiatrist. She performs comprehensive psychiatric consultations and offers medication management and psychotherapy for children and adults. She has over 15 years of experience with a wide variety of diagnoses and is on the teaching faculty at Harvard Medical School. Her expertise includes anxiety, mood disorders, ADHD, developmental disorders and mental health issues associated with physical illness with a particular interest in resilience building (through exercise, music and meditation), life transitions, parent guidance and cultural issues. She offers strength-based, patient-focused care with an emphasis on prevention.

Alison Sheridan, MD, graduated from Boston University School of Medicine and completed her psychiatric residency at Tripler Army Medical Center in Honolulu, Hawaii.  She then served as a US Army psychiatrist for 7 years, leaving active service in 1991 after the first gulf war.  Dr. Sheridan has nearly 35 years of clinical experience in diverse settings, including McLean Hospital Alcohol and Drug Abuse program, Bedford VA Medical Center Returning Veterans Program and PTSD team, and in Wellington, New Zealand as a consultant as well as 25 years of part time private practice in Concord, MA.  She is board certified in Adult and Addiction Psychiatry, and has expertise in addictive illness and trauma.  At Boundaries she provides diagnostic evaluations, consultation and treatment of adult patients with a wide variety of diagnoses.

Devin Gibbs, MD, received her degree from University of North Carolina at Chapel Hill School of Medicine, followed by a General Psychiatry Residency at University of Maryland Medical Center. She completed a Child and Adolescent Psychiatry Fellowship at The Cambridge Health Alliance/Harvard Medical School. She also completed a One-Year Fellowship in Child Psychoanalytic Psychotherapy through the Boston Psychoanalytic Institute. She provides comprehensive psychiatric assessments as well as medication management and psychotherapy for children and adults for a variety of diagnoses. Her approach to evaluating and treating patients doesn’t stop at a diagnosis, but seeks to understand how a person’s biological, psychological and social factors play into their current problems. She recognizes the importance of using a combined approach with psychotherapy and medication and to that end works closely with Boundaries therapists to support patients.

Psychiatric Nurse Practitioners

Laura Shapiro, APRN, NP, is a board certified family Psychiatric Nurse Practitioner who practices across the life span. She brings 15 years of community health and school based health experience to her practice. Laura has a BSN from Simmons College, a MEd from Bridgewater State College and a MS from Northeastern University. Her primary areas of expertise are with children and adolescents with school phobia and difficulty functioning in the school environment, as well as treating ADHD, bipolar disorders, and mood disorders including depression and anxiety. Laura is committed to integrated health care and open communication with therapists, primary care providers, and other disciplines as needed. She firmly believes that a team approach to mental health care ensures high quality treatment.

Kara Bloomingdale, MS, PMHCNS-BC, is a board certified Psychiatric Mental Health Clinical Nurse Specialist. She received an MS in Nursing from the Massachusetts General Hospital Institute of Health Professions. Ms. Bloomingdale completed the Harvard Pilgrim/Harvard Vanguard Medical Associates Behavioral Health Fellowship. As a Fellow she received advanced training in cognitive behavioral (CBT) psychotherapy and psychiatric medication management. Ms. Bloomingdale spent most of her career working for the Lynn Community Health Center, in school-based health centers (elementary, middle, and high schools) and on a fully integrated behavioral health-primary care team. At Boundaries, Ms. Bloomingdale treats children, adolescents, and adults through upper middle age. She provides psychiatric evaluations, psychiatric medication management and consultations, and limited psychotherapy. Ms. Bloomingdale strives to provide patient/family education to help patients be informed consumers who engage in shared decision making about their treatment. She has a special interest in treating members of the LGBTQ+ community.   


Christhild Uhl, PsyD., is a licensed psychologist with over 20 years experience providing psychotherapy for people experiencing a wide array of psychological problems. Her areas of expertise are in affective disorders including depression and post-traumatic stress disorder as well as working with clients suffering from the aftermath of traumatic brain injury, stroke or chronic medical conditions. She provides short and long term psychotherapy to adults and adolescents. Dr. Uhl is a clinical instructor of Psychology at Harvard Medical School and a Clinical Associate at Mclean Hospital

Madeline Wagner, Ph.D, is a licensed psychologist and has been doing clinical work with adults and adolescents for more than 20 years. In addition to providing assessments and psychotherapy, she has taught and supervised clinicians-in-training in both public and private settings. Her particular areas of experience include working with couples, treating addictions and compulsions of all sorts, working through histories of traumatic experiences which effect functioning and ADHD in adults. Dr. Wagner works with clients experiencing problems with anxiety and mood, issues of self-regulation, efficacy, conflict and bewilderment. She is skilled in both brief and longer term treatment forms.

Clinical Social Workers

Anne Cole, LICSW, is an experienced psychotherapist with many years of clinical work with adults, couples and children. She works in helping parents understand and manage their children’s emotion and behaviors. She has experience in helping clients with grief and loss. Anne has a Master’s degree from Smith College for Social Work and a three year Fellowship Certificate from The Boston Institute for Psychotherapy. Her treatment approach borrows from different schools of therapy to fit the needs and personalities of her clients.

David Fair, LICSW, Is a child & family therapist with over 9 years of experience working with youth and families in a variety of settings including residential homes, special education and public high schools and as a therapeutic mentor and an in-home therapist.  David received his Masters of Social Work from Simmons University and has a focus on trauma, anxiety, self-esteem issues and anger challenges and supporting individuals on finding their own unique paths to healing and personal growth.  David draws on solutions focused methods, narrative therapy, CBT, DBT and psycho-dynamic practices, among other interventions to find what works best for each particular client.  David has a specialized approach, which is adapted to fit clients and support them in achieving the goals that are important to them.  David has experience in working with families who are experiencing multiple stressors, and supporting parents of children with mental health/behavioral challenges.  Some of David’s interests are anti-racism work, advocating for survivors of interpersonal violence and learning new ways of supporting post-traumatic growth and empowering survivors of trauma. 

Bethel Gilbert, LICSW, obtained her Masters in Social Work from the University of Pennsylvania.  She has 30+ years experience as a Psychotherapist working with children, adolescents, adults and couples.  Her approach is family oriented.  She primarily uses a psycho-dynamic approach mixed with education, support and behavioral techniques all within a holistic framework.  Additional experience includes 10 years of adoption work (international and domestic) plus training as a yoga teacher allowing her to use breathwork or meditation as appropriate.Areas of practice include work with anxiety, depression, a range of childhood and family problems as well as cultural and identity issues related to adoption.

Linda Onuska, LICSW, is a clinical social worker with extensive experience as a therapist in community mental health. She is a graduate of Simmons School of Social Work and treats adults of all ages in individual, couples and family therapies. Her approach is eclectic, based on the individual needs and goals of the client. Her theoretical and philosophical orientation is that the challenges of life are best met with a combination of insight, humor and practical skills.

Andrew Shlesinger, LICSW, is a child, adolescent, adult and family clinician with over 15 years experience in behavioral mental health, anxiety disorders, depression, ADHD, autism spectrum disorders, learning disabilities and navigation of the IEP/Special Education process. He draws from his expertise in Applied Behavioral Analysis, Cognitive Behavioral Therapy, and psychotherapy to develop a customized, effective treatment plan that meets the goals and preferences of each client. Andrew received his Master's degree from Boston University and has prior experience in a major hospital setting, schools, and outpatient therapeutic programs.

Sheryl Tattelman, LICSW, is a licensed clinical social worker who has been in practice for 30 years. She received her training at Boston College of Social Work and at the Cambridge Family Institute. Sheryl works with adults, adolescents and families. She is experienced in treating a variety of conditions including, depression, anxiety, loss, life transitions, and a wide range of adolescent issues, including school difficulties and parenting/family concerns. 

Licensed Mental Health Counselors

Helen Frey, MAEd, LMFT, LMHC, is the Managing Director of Boundaries Therapy Center and as such, works in the dual capacity of senior clinician and Intake Coordinator. She manages the daily functioning of the private group practice of 20 full and part time therapists. She has many years of experience as an adolescent, adult and family therapist. Her approaches are geared to fostering problem-solving techniques and overall capacities of her clients to adjust to situational and life stage issues. She works with couples using time-effective methods to focus on marital, parenting and extended family issues. She provides treatment for family members involved in every stage of the divorce process.

Steven Bernstein, LMHC, provides brief and long-term psychotherapy for individuals and couples. He’s worked in varied clinical settings and with different populations in his twenty-plus years as a psychotherapist. Steven’s psychodynamic orientation also reflects an interest in spirituality, mindfulness, dreamwork and other modalities that seek to meet the unique needs of clients. He has a particular interest in relational therapy, as well as organizational systems, and his approach is informed by Terry Real’s Relational Life Therapy. Steven seeks to provide compassionate, reality-based support within the growth and healing process of clients, Steven has a B.A. from Vassar College and an M.A. from Johnson State College, and he also did post-graduate work in Montreal.

Veneita Burden, RN, LMHC, has many years of experience in physical and mental health, as a registered nurse and a licensed mental health worker. Her expertise is in the self-management of chronic pain and stress/anxiety and stress related medical conditions. Her treatment approach is solution focused, using cognitive and behavioral and psycho-educational approaches.

Lynn Giles, LMHC has many years of experience in the treatment of addictions and mood disorders.  Her work includes the development of intensive outpatient and relapse prevention programs for those in need of substance abuse treatment.  She is on the Advisory Board of the UMass Graduate Psychology program and provides clinical supervision for students and other professionals.  She is a proponent of positive, strengths based psychology and is well versed in Cognitive Behavioral treatment.   She works with adults and adolescents.

Brianne Mackie, LMHC, CEIS is a Licensed Mental Health Counselor and a Certified Early Intervention Specialist who holds an Early Childhood Education degree from Lesley University and a Counseling degree from Fitchburg Sate University. She is passionate about supporting families and children to reach their full potential, in any place they may be in life. She has experience working as a developmental specialist for 17 years in an Early Intervention program. She supports families to work through a number of challenges, including, developmental differences in a child, trauma, anxiety, parenting issues and relationship issues. She utilizes an eclectic approach of parent-child interaction therapy, strength based, CBT, play therapy and attachment-based approaches.

Meghan Wood, LMHC, CCTP, is a Licensed Mental Health Counselor (LMHC) and Certified Clinical Trauma Professional (CCTP). She graduated from Assumption College with a masters in Counseling Psychology with concentrations in Cognitive Behavioral Therapy and Child & Family Interventions. Meghan has over a decade of experience working with individuals and families struggling with mental health and substance use. She takes a strengths based approach to care and tailoring treatment to the individual’s needs.


Our Staff

Boundaries Therapy Center

Boundaries Therapy Center
518 Great Rd, Acton, MA 01720
Phone:   978-263-4878  

Fax:   978-635-0386

Business Hours
Monday through Friday
8:30 a.m. - 5:00 p.m.

Evening and Saturday hours available