It’s not about us

We still feel its important for you to know who we are and what we do

Meet The Team

We believe its “takes a village” for a community to thrive. Our team took their experiences in education and life and together made Collaborative to tackle even the most toughest of challenges.

Please feel free to search for your service, location or insurance provider. You may also book with a provider on their profiles below

Miriam Kassow, MS, LMSW

Position: Psychotherapist
Phone: (929) 930-6948
Email: miri.kassow@collaborative-people.com
Areas of Work: Accelerated Experiential Dynamic Psychotherapy (AEDP), Acceptance Commitment Therapy (ACT), Adaptive Mentalization based integrative treatment, Adjustment Disorder, Adolescent / Teen Issues, Adolescent Addiction / Substance Use, Adult Psychotherapy, Adults (25-64), Aging Parents, Alcohol Use, Anger, Anger Management, Anxiety Disorder, Art Therapy, Artist-Related Stress, Attachment Disorder, Attachment Theory, Autism Spectrum Disorder, Behavioral Issues / Problems, Behavioral Therapy, Bereavement / Grief Counseling, Biofeedback Treatment, BIPOC Mental Health Issues, Bipolar Disorder, Bisexual, Body-Focused Repetitive Behavior (BFRB), Body-Focused Therapy (ex: Tapping), Buddhist, Bullying, Canabis Use disorder, Career-Related Stress, Caregiver Burnout, Childhood Trauma, Christian, Chronic Illness, Chronic Pain, Cigna, Client Centered Therapy/Rogerian Therapy, Cognitive-Behavioral Therapy (CBT) , Community Violence, Compassion Fatigue, Compassion Focused, Complex Trauma, Confidence Issues, Coping Mechanism Development, COVID-19 Stress, Cultural Competence, Cultural Diversity Issues, Culturally Sensitive, Dating, Depression, Dialectical, Dialectical Behavioral Therapy (DBT), Dual Diagnosis, Early Childhood Trauma, Emotional Abuse, Emotional and Behavioral Disorders, Emotional Disturbance, Ex-Cult Support, Existential Anxiety, Existential Crisis or Transition, Family Conflicts / Issues, Family Dynamics / Systems, Family Planning, Family Systems, Family Therapy, Fear of Failure, Female Identifying, Fertility / Infertility, Gay, Gender Dysphoria, Generalized Anxiety Disorder (GAD), Grief and Loss, Group Therapy, Harassment, Harm Reduction Therapy, Hindu, Hyperactivity Disorder (ADHD), Immigration, Imposter Syndrome, Individual Therapy, Intergenerational Trauma, Internal Family systems (IFS), Intervention, Intrusive Thoughts, Irrational Fears, Jewish, Jungian Psychotherapy, Learning Disabilities, Lesbian, Level 2 Clinician, LGBT Care, LGBTQIA+, Low Self Esteem, Medical Trauma, Medication Management, Medication Management, Mentalization Based Treatment, Mentalization Based Treatment for Adolecents (MBT-A), Mid-Life Crisis, Migraines / Chronic Headaches, Mindful-Based Therapy, Mood Disorder/Mood Swings, Motivational Interviewing (MI), Multicultural Therapy, Muslim, Natural Disasters, Non-suicidal Self-Injury, Nonreligious, Obsessive Compulsive Disorder (OCD), Peer Relationships, Perfectionism, Performance Anxiety, Person Centered (Rogerian), Personality Disorders, Post Traumatic Stress Disorder (PTSD), Pre-College Fears, Procrastination, Prolonged Grief Disorder (PGD), Psychodynamic Therapy, Queer, Queer-Competent, Questioning, Race-Related Stress, Racial Justice Framework, Reactive Attachment Disorder (RAD), Recently Moved, Refugee Trauma, Relationship Struggles / Issues, Romantic Life, Rumination, Safety Planning, School Phobia, Seasonal Affective Disorder (SAD), Self Esteem, Self-Harm / Injury, Self-Reflection, Seniors (65+), Separation Anxiety, Sex Positive/Kink Friendly, Sexual Abuse, Sexual Fear, Sexual Identity, Sexuality, Sibling-Related Stress, Sleep Problems, Social Anxiety Disorder, Social Justice, Social Skills Training (SST), Somatic Experiencing Practitioner, Somatic Therapy, Spirituality, Spiritually Integrated Psychotherapy (SIP), Strength-Based, Strength-Based Therapy, Stress, Stress Management, Suicidal Feelings, Suicidal Ideation, Teenagers/Adolescents (13-17), Thought Disorders, Trans-Competant, Trauma / Trauma Focused, Trauma Therapy, Trauma-Focused Cognitive Behavioral Therapy (TF-CBT), Traumatic Grief, Trichotillomania/Body-Focused Repetitive Disease, Veterans, Vulnerability, Walk and Talk Therapy or OutdoorTherapy, Weight Loss, Women's Health, Women's Issues / Obstacles, Worry, Young Adults (18-24)
Location: 5th Avenue, Tele-Health/Virtual

Miriam (She/Her) is a licensed psychotherapist. Originally from West Hartford, CT, Miriam has called New York City her home for the past 10 years. Her practice as a clinician is deeply rooted in empathy and compassion for all clients. Miriam believes that the client is the expert of their own lived experience, and that her role as a therapist is to help the client understand themselves and their lives more deeply and meaningfully. Pulling from several different modalities and orientations such as attachment-focused work, psychodynamic theory, Cognitive Behavioral Therapy and Dialectical Behavior Therapy, Miriam is passionate about supporting her clients to find agency in leading the lives they aim to live. Miriam considers herself a life-long student above all else and is constantly seeking to expand her knowledge and expertise as a clinician.

Miriam’s approach has worked well for various needs, including (but not limited to) survivors of trauma, mood and anxiety disorders, body-focused repetitive behaviors, and those seeking to explore their sexuality and/or gender.

Outside of her practice, Miriam loves to read, practice yoga, explore New York City on foot, and perfect new recipes in her Brooklyn kitchen. Miriam also loves to sing and performs as a cantorial soloist. She received her graduate degree in social work from New York University and her undergraduate degree in International Studies with a Peace and Conflict concentration from Muhlenberg College.

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Miriam Kassow, MS, LMSW

Psychotherapist

Miriam (She/Her) is a licensed psychotherapist. Originally from West Hartford,...

Maria Pietruszka, MS, LMHC, CASAC-T

Position: Psychotherapist & Supervisor
Phone: (929) 538-3245
Email: maria.pietruszka@collaborative-people.com
Areas of Work: *Out of Network*, 12- Step Friendly, Abstinence Based Psychotherapy, Acceptance Commitment Therapy (ACT), Addiction Counseling, Adjustment Disorder, Adolescent / Teen Issues, Adolescent Addiction / Substance Use, Adoption, Adult Psychotherapy, Adults (25-64), Affirming Therapy, Aging Parents, AIDS - HIV, Alcohol Use, Alcoholism, Anger, Anger Management, Animal-Assisted Therapy, Anti-Social Personality Disorder (ASPD), Anxiety Disorder, Artist-Related Stress, Asexual, Attachment Disorder, Behavior Modification, Behavioral Issues / Problems, Behavioral Therapy, Bereavement / Grief Counseling, Betrayal Trauma, BIPOC Mental Health Issues, Bisexual, Bisexual, Body Positivity/Health at every size, Body-Focused Therapy (ex: Tapping), Borderline Personality Disorder (BPD), Buddhist, Bullying, Burnout, Canabis Use disorder, Career-Related Stress, Caregiver Burnout, Chemical Dependency Assessments, Childhood Trauma, Children (<13), Christian, Christian Counseling, Chronic Relapse, Cigna, Client Centered Therapy/Rogerian Therapy, Clinical Supervision and Licensed Supervisors, Codependency, Cognitive Behavioral Therapy for Psychosis (CBT), Commitment Obstacles, Community Violence, Compassion Fatigue, Confidence Issues, Coping Mechanism Development, COVID-19 Stress, Credentialed Alcoholism and Substance Abuse Counselor, Cultural Competence, Cultural Diversity Issues, Dance/Movement Therapy (DMT), Dating, Depression, Dialectical Behavioral Therapy (DBT), Disruptive, Impulse-Control and Conduct Disorders, Drug Addiction, Drug Use, Dual Diagnosis, Early Childhood Trauma, Emerging Adulthood, Emotion Regulaton Therapy (ERT), Emotional Abuse, Emotional and Behavioral Disorders, Emotional Disturbance, English, Eye-Movement Desensitization and Reprocessing (EMDR), Family Conflicts / Issues, Family constellations, Family Dynamics / Systems, Family Planning, Family Systems, Fear of Failure, Female Identifying, Feminist, Fidelis, Forensic Psychology, Gambling / Crypto Addiction, Gay, Gay, Generalized Anxiety Disorder (GAD), Group Therapy, Group Therapy, Harassment, Harm Reduction Therapy, Health at Every Size, Health-Related Concerns, Humanistic Therapy, Immigration, Immigration Psychological Evaluation, Imposter Syndrome, Impulse Control Disorder (ICD), Indecision, Individual Therapy, Intergenerational Trauma, Internal Family systems (IFS), Internet Addiction, Intersex, Intervention, Intimate Partner Violence, Intimate Partner Violence (IPV) Trauma, Intrusive Thoughts, Irrational Fears, Jewish, Lesbian, Lesbian, Level 3 Clinician, LGBTQIA+, Life Transitions, Life Transitions, Loneliness, Low Self Esteem, Major Depressive Disorder (MDD), Male Identifying, Marijuana Disorder, Marriage Counseling, Masculinity-Related Stress, Medication Management, Medication Management, Medication-Induced Anxiety Disorder, Mental Health Problem / Illness, Mental State Opinion, Mentalization Based Treatment, Mid-Life Crisis, Migraines / Chronic Headaches, Mindfulness-Based Cognitive Therapy (MBCT), Money-Related Stress, Mood Disorder/Mood Swings, Motivational Interviewing (MI), Multicultural Therapy, Music Therapy, Muslim, Natural Disasters, Non-Binary, Non-suicidal Self-Injury, Non-Traditional Romantic Stress, Nonreligious, Open Relationships/Non-Monogomy, Parenting, Peer Relationships, Perfectionism, Performance Anxiety, Polish, Positive Psychology, Post Traumatic Stress Disorder (PTSD), Post-Traumatic Stress Disorder (PTSD) Counseling, Pre-College Fears, Premarital / Marital, Premenopausal Symptoms, Premenstrual Dysphoric Disorder (PMDD), Premenstrual Syndrome (PMS), Procrastination, Psychedelic Integration Therapy, Quarter-Life Crisis, Queer, Queer, Queer-Competent, Questioning, Race-Related Stress, Racial Justice Framework, Racism Issues, Rational Emotive Behavior Therapy (REBT), Reality Therapy, Recently Moved, Refugee Trauma, Relapse Prevention Therapy, Relationship Struggles / Issues, Romantic Life, School Phobia, Seasonal Affective Disorder (SAD), Self Esteem, Seniors (65+), Separation Anxiety, Sex Positive/Kink Friendly, Sex Worker Positive, Sexual Identity, Sexuality, Sibling-Related Stress, Social Anxiety, Social Anxiety Disorder, Social Justice, Social Life, Social Therapy, Spiritual Crisis or Transition, Spirituality, Straight, Strength-Based, Strength-Based Therapy, Stress, Stress Management, Teaching, Teenagers/Adolescents (13-17), Trans-Competant, Transgender, Transitioning, Trauma / Trauma Focused, Trauma Therapy, Trauma-Focused Cognitive Behavioral Therapy (TF-CBT), Vegan, Vulnerability, Women's Issues / Obstacles, Women's Issues Therapy, Work-Related Counseling, Worry, Young Adulthood, Young Adults (18-24)
Location: 5th Avenue, New York, Tele-Health/Virtual

Maria (She/Her) was born in Poland and migrated to NYC at the age of 3.  She was raised in Brooklyn and carries that as a badge of honor.

Maria attended Hunter College where she graduated with a degree in Sociology.  She then attended LIU Brooklyn and obtained her Master’s in Mental Health Counseling in 2017.  During her time at LIU Brooklyn, she was the campus representative for the American Psychology Association Division 35 Society for the Psychology of Women. Maria was involved in hosting events that help spread awareness for feminist research, theory and education to understand and improve the lives of girls and women in all their diversities. This helped Maria develop her passion towards working with women and women’s issues.

After graduation, Maria was hired as a full time substance abuse counselor at Outreach, where she completed her internship for graduate school. She worked with adults to help them reach their goals in recovery. Maria implemented harm reduction techniques to help promote a more inclusive and realistic approach for treating substance use disorders.  She is determined to approach all her clients by meeting them where they are and empowering them to meet their treatment and therapy goals.

After 3 years, Maria was promoted to Program Coordinator where she was responsible for running Restart Academy, a Department of Education alternative high school for students with substance use and behavioral issues and an after school program for outpatient services for adolescents. Maria enjoyed working and advocating for adolescents and young people. She guided them through different life transitions like: finishing high school, coping with peer pressure and preparing for the next chapters of their lives like college or full time employment.

Maria also supervised new counselors and her approach was always to empower counselors and teach them listen to their “clinical gut”.

Maria is driven by social justice and participated in movements for Black Lives Matter, women’s rights and animal rights. Her approaches in therapy display her commitment to provide an empathic, compassionate and judgement-free space where people from all walks of life can address their emotional issues, life transitions and meet their therapy goals.

When she is not in session, Maria teaches as an adjunct lecturer at Hunger College. She teaches courses like Drugs and Society and the Sociology of Mental Health.  In her free time, Maria loves to re-watch “The Office”, spend time with her two cats Rajah and Stella and try new vegan recipes.


Maria Pietruszka, MS, LMHC, CASAC-T

Psychotherapist & Supervisor

Maria (She/Her) was born in Poland and migrated to NYC...

Now Accepting Cigna/Evernorth and Fidelis Care!

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