Sierra Freeman, LMSW

Associate Therapist

(she/her)

“I’m continually inspired by the resilience of the kids and families I serve. I strive to blend warmth, empathy, and evidence-based structure so every child feels supported, understood, and equipped with skills that will carry them forward.”
Sierra Freeman, shoulders-up, smiling, long brown hair and a black collared shirt against a mottled blue backdrop.

About Sierra Freeman, LMSW

Sierra Freeman is an associate therapist at Brightline’s Brooklyn clinic, providing care under the supervision of Sylvia Ryszewska, PhD. Her background includes experience as both a social worker and educator; she has  supported kids, teens, and parents across school settings, community mental health agencies, and within forensic social work. 

Sierra has helped families navigate parenting challenges, ADHD, anxiety, depression, emotional regulation difficulties, peer conflict, and academic or organizational struggles. She has particular experience working with neurodivergent youth, especially those with ADHD, and supporting parents as they foster independence, build routines, and strengthen executive functioning and emotional regulation skills.

Sierra’s therapeutic approach draws from cognitive behavioral therapy (CBT), parent management training (PMT), solution-focused interventions, trauma-informed care, and dialectical behavior therapy (DBT) skills. Her background in education enables her to collaborate effectively with school teams, interpret data, and develop school-related support and intervention plans.

She is passionate about making therapy accessible, strengths-based, and empowering, especially for kids who may not always feel understood in larger systems. What excites Sierra the most is witnessing meaningful, everyday progress: a child using a coping skill independently, a parent gaining confidence, or a young person recognizing their neurodivergence as a source of strength. 

Professional Summary

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  • Education 

    • Master of Social Work (MSW), Boise State University

    • Bachelor of Science in Public Health (BS), San Francisco State University

  • Therapeutic approaches and certification(s): acceptance and commitment therapy (ACT), cognitive behavioral therapy (CBT), parent management training (PMT), dialectical behavior therapy (DBT), Group Therapy, Trauma-Focused Cognitive Behavior Therapy (TF-CBT); 

  • License Type(s): Licensed Master Social Worker (LMSW)

  • States where clinician is licensed: New York (122849)

  • Experience: 

    • Mental Health Professional, Rocketship Public Schools

  • Training:

    • Social Work Intern, New York Counseling for Change

  • Supervisor: Sylvia Ryszewska, PhD

In-person care in Brooklyn. Online care from home.

Your child’s therapist will work with you to find the balance that is right for your family and the goals you have for your child.


Brooklyn Heights clinic address

32 Court Street, Suite 808
Brooklyn, NY 11201

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Meet our Brooklyn clinical providers

Tara Balin, LMSW

Therapist star
Tara Balin, shoulders-up, slight smile, dark hair in a bun, cream turtleneck and hoop earrings on a rooftop at dusk.
“What excites me most is being able to sit with kids and families through the highs and the lows of life, to foster and witness growth, healing, and change.”

Stephanie Eichler, LMSW (Person)

Therapist star
Stephanie Eichler, shoulders-up, smiling, curly brown hair and an olive button-down outdoors with pink blossoms.
“I have always been genuinely interested in learning about people and hearing their stories. I am passionate about helping clients lead fulfilling lives, empowering them to discover their inner strengths and overcome challenges.”

Gina Foster, LMSW

Therapist star
Gina Foster, head-and-shoulders portrait, wide smile, blonde waves, navy blouse and gold jewelry, pale wall.
“I’m inspired by the resilience kids and families develop and show throughout the therapeutic process. I find it energizing to support people as they grow in confidence and self-understanding during their formative years.”

Stephen Fox, PsyD

Therapist star
Stephen Fox, head-and-shoulders, smiling, round glasses, grey cardigan, white shirt and grey tie on a white wall.
“What I love the most about this field is working with kids and teens and seeing them meet their goals, connect with their peers, and thrive in their individual settings.”

Sierra Freeman, LMSW

Therapist star
Sierra Freeman, shoulders-up, smiling, long brown hair and a black collared shirt against a mottled blue backdrop.
“I’m continually inspired by the resilience of the kids and families I serve. I strive to blend warmth, empathy, and evidence-based structure so every child feels supported, understood, and equipped with skills that will carry them forward.”

Bria Leyden, LMHC-D, LPC

Therapist star
Bria Leyden, smiling portrait with curly black hair, taupe cardigan, gold necklace, and a light indoor background.
“I am passionate about supporting kids and teens as well as collaborating with parents to support their families.”

Edward Merritt, PhD

Therapist star
A smiling man in a light purple shirt stands among leafy green plants.
“What excites me most about the field is being able to connect therapeutic skills to the interests or passions of my clients. It is very motivating when I see something that we have been working on finally click with a child.”

Sylvia Ryszewska, PhD

Therapist star
Sylvia Ryszewska, three-quarter crop, smiling with arms crossed, long dark hair and a burgundy blouse on grey.
“I am most passionate about providing early intervention care as it can and does change the lives and trajectory of kids and families.”

Nikki Vega, LCSW

Therapist star
Nikki Vega, head-and-shoulders, smiling, brown button-down, office window and plant behind.
“I’m passionate about helping families strengthen connection while building skills that support their child’s confidence and independence.”

Sarah Wallin, LMHC-D

Therapist star
Sarah Wallin, head-and-shoulders, smiling, black top and nose ring, plant against a white wall.
“Being able to provide a space where kids can express themselves openly, discover their strengths, and build skills that foster resilience is what inspires me every day.”

Madelyn Williams, LMSW

Therapist star
Madelyn Williams, head-and-shoulders, smiling, gray cardigan, light blue wall with doodle graphics.
“I’m passionate about giving kids tools they can carry throughout their lives, and I’m continually motivated by the courage youth and parents show each time they show up, share openly, and take steps toward greater confidence and connection.”

Request an appointment

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Our Engagement Specialist team will contact you to discuss your situation, explain the process, and schedule your appointment. We may reach out from a phone number or email address you don't recognize, so please keep an eye out because we don’t want you to miss us. EXISTING PATIENTS can schedule an appointment here.

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Brightline currently provides services in NY, NJ, CT, and MA.


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What is an associate therapist?

Associate therapists have earned their master’s degree in social work, psychology, marriage and family therapy, or counseling. They have a limited license to practice under supervision, and are completing their supervised hours at Brightline to work toward their independent licensure. That means that all of the work they do with your family will be supervised by one of Brightline’s licensed providers. Their supervising provider will review all session notes, care plans, conversations, and recommendations to ensure the approach to your child’s treatment is aligned with our standards of providing high-quality, safe, and ethical care. Supervising provider names can be found on each associate therapist provider page on our website; the associate therapist will also share who their supervisor is at the start of care.

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If you are a New York-based clinician who wants to love where you work, you belong at Brightline. Browse our open roles today!

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