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Meet Our Providers

Caroline Martin, PhD

Founder & Clinical Director · Licensed Psychologist

Dr. Caroline Martin (she/her) is a licensed clinical psychologist in New York State dedicated to providing evidence-based mental health services for children, adolescents, and their families in the Rochester area. She also holds a faculty appointment in the Department of Psychiatry at the University of Rochester Medical Center.

Dr. Martin is passionate about helping young people thrive during their most formative years, and believes that supporting parents and caregivers is essential to achieving this goal. Her approach combines the latest research in child psychology with compassionate, individualized care, working collaboratively with families to create meaningful and lasting change.

Much of Dr. Martin's clinical work centers on early childhood, when the right support can shape how a child grows, connects, and thrives. Her specialized training in infant and early childhood mental health informs both her clinical practice and her broader commitment to prevention and early intervention.

Beyond direct clinical care, Dr. Martin partners with organizations on research and program evaluation, and works to bridge the gap between clinical services and community-based supports for families. This broader vision is what drives all services at Momentum Psychology.

Ages Seen: 2-12 years old

Specialties ADHD, OCD, Anxiety, Selective Mutism, Parenting Support

Rate: $200 (50 minute session), $245 diagnostic intake

Insurance: In network with Excellus BCBS; Sliding scale available

Session Format: In person and virtual options

Education & Training
  • Doctoral Training
    2021

    The University of Vermont

  • Clinical Internship
    2021

    Ann & Robert H. Lurie Children's Hospital of Chicago

  • Postdoctoral Fellowships
    2022 & 2023

    Alpert Medical School of Brown University
    Johns Hopkins University School of Medicine

Nick Rosica, MHC-LP

Associate Clinician

Nick Rosica (he/him) is a Mental Health Counselor who works with children, adolescents and families as they navigate behavioral concerns, emotional difficulties and challenges in their relationships. He also currently serves as the Assistant Director of Socioemotional Learning at a Mt. Hope Family Center (University of Rochester Medical Center) where he continues to work extensively with children and families through several programs. 

Nick brings nearly a decade of experience working with children and their families in community-based mental health settings, with a passion to support young people in developing the skills they need to feel more confident, connected, and successful. He takes a warm, strength-based and developmentally informed approach to therapy, with a foundational belief that building a strong therapeutic relationship is essential for helping clients feel understood and supported. 

The majority of Nick’s clinical work has focused on early childhood & supporting caregivers in navigating the developmental challenges that come with raising a child. He values working collaboratively with caregivers and recognizes the significant role that supportive relationships play in a child’s emotional and behavioral development. 

Nick’s goal is to foster an environment of support and healing for children and their caregivers. He believes working alongside clients and their families can build meaningful skills and strengthen relationships that extend beyond the therapeutic environment. 

Ages Seen: 4-18 years old

Specialties: Anxiety, OCD, Depression, Trauma, ADHD, & Behavioral Concerns

Rate: $175 (50 minute session), $220 diagnostic intake

Insurance: Private Pay only; Sliding scale available

Session Format: In person and virtual options

Education & Training
  • Master of Science
    2025

    Warner School of Education, University of Rochester

  • Clinical Internship
    2026

    Mt. Hope Family Center, University of Rochester

  • Advanced Certificate in Mental Health Counseling
    2026

    Warner School of Education, University of Rochester

Lindsay Hernady, LCSW

Licensed Clinician

Lindsay Hernady, LCSW (she/her) is a Licensed Clinical Social Worker with five years of experience providing therapy to children, adolescents, and young adults throughout New York State. She specializes in pediatric and adolescent mental health and is passionate about creating a safe, supportive environment where clients feel understood, accepted, and comfortable being themselves.

Life’s challenges and transitions can sometimes feel overwhelming. Lindsay works collaboratively with clients and families navigating anxiety, depression, ADHD, autism, OCD, PTSD, adjustment difficulties, relationship concerns, and other life stressors. She has specialized experience supporting children and adolescents with ADHD and values collaboration among families, schools, and medical providers to promote meaningful, well-rounded support.

With a background in college athletics and sports coaching, Lindsay also understands the unique pressures young athletes may experience, including performance expectations, confidence, competition, and balancing athletics with everyday life. She supports athletes in developing healthy coping strategies and navigating challenges both on and off the field.

Lindsay uses an individualized, strengths-based approach incorporating evidence-based therapies including CBT, DBT, Motivational Interviewing, Family Systems, and Mindfullness-Based approaches. Her goal is to help each client feel heard, build confidence, and develop tools to navigate life with greater resilience and well-being.

Ages Seen: 10-21 years old

Specialties: ADHD, OCD, Anxiety, Trauma, Depression, Autism, Student Athletes

Rate: $175 (50 minute session), $220 diagnostic intake

Insurance: Out of network provider (reimbursement receipts provided); Sliding scale available

Session Format: Virtual only

Education & Training
  • Master of Social Work
    2023

    Nazareth College

  • Clinical Internship
    2023

    Rochester Regional Health, Collaborative Care Program

Cassie van Stolk-Cooke, PhD

Licensed Psychologist

Dr. Cassie van Stolk-Cooke (she/her) is a licensed clinical psychologist in New York State dedicated to providing evidence-based mental health services to adults. She is an Assistant Professor of Psychology at Bard College in Annandale-on-Hudson, NY.

Dr. van Stolk-Cooke joined Momentum Psychology to support parents directly, knowing that a child's mental health is deeply connected to the wellbeing of the adults raising them. Her work gives parents a dedicated space to address their own anxiety, depression, or stress, so they have more capacity to show up as the parent they want to be. 

Dr. van Stolk-Cooke is trained as a cognitive-behaviorist, and provides adults with patient-centered, short-term, skills-based treatment to address common mental health challenges like depression, anxiety, posttraumatic stress, ADHD, and obsessive-compulsive and related disorders. Dr. van Stolk-Cooke's research focus is on social support in close relationships, and she is dedicated to tailoring evidence-based treatment to the needs of individuals, while considering and including their closest supporters in the treatment process when appropriate.

Dr. van Stolk-Cooke provides services to adults in the Rochester area via telehealth.

Ages Seen: 18+

Specialties:  PTSD, Depression, Anxiety, ADHD, OCD

Rate: $200 (50 minute session), $245 diagnostic intake

Insurance: Out of network provider (reimbursement receipts provided); Sliding scale available

Session Format: Virtual only

Education & Training
  • Doctoral Training
    2021

    The University of Vermont

  • Clinical Internship
    2021

    Veterans Affairs Palo Alto Healthcare System

  • Postdoctoral Fellowship
    2023

    Stanford University School of Medicine