OUR PEOPLE
Meet The Team
We believe it “takes a village” for a business to thrive. Our Founders took their experiences in life and profession and built Collaborative to solve the problems they had encountered before. It’s new, it’s fresh, its humanity at its peak.
Please feel free to search for your service, location or insurance provider. You may also book with a provider on their profiles below
Deborah Bothun
Coming Soon!
Deborah Bothun
Clinical Intern
Coming Soon! Request Appointment
Maria Pietruszka, MS, LMHC, CASAC-T
Maria 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
Maria was born in Poland and migrated to NYC at...
Kathryn Peter, LAc, DACM
Katy (she/her) is a licensed acupuncturist who believes in empowering others to find their healthiest self through a holistic approach to healthcare. She is passionate about providing a safe empathetic space that allows for people of all different backgrounds and health histories to feel heard.
Katy specializes in working with complex chronic illness and autoimmune disease, digestive disorders, gender inclusive sexual and reproductive health care, women’s health, pain and injury, substance use disorder, supporting emotional well-being and mental health through trauma-informed care. Katy knows that trauma is often expressed somatically in the body and believes in the power of acupuncture, along with therapy, to help ease that expression. She has experience working with diverse populations and ages including BIPOC, LGBTQIA+, and persons with disabilities. Her approach uses gentle needling, palpation, herbal therapy and patient education along with her knowledge of Western medicine to provide collaborative care. She strongly supports the right to quality, inclusive healthcare.
Katy graduated with a Doctorate of Acupuncture and Chinese Medicine (DACM) from the American College of Traditional Chinese Medicine (ACTCM) of CIIS in San Francisco. She started her private practice in San Francisco at Ume Acupuncture learning Kiiko Matsumoto style acupuncture, a style that focuses on the root cause of disease. Katy started Root and Stem Integrative Chinese Medicine’s Sliding Scale acupuncture practice in Oakland, California doing private and community treatments. She has worked in private internships, at DeHaro auricular clinic, and Glide community acupuncture clinic. She studied Western herbalism with herbalist Matthew Woods, Erica Fargione and Cynthia Thomas. She is also a certified yoga instructor and loves to incorporate her knowledge of these systems into her practice.
Katy’s own discoveries of healing and learning through holistic modalities led her to the study of Chinese medicine. Katy loves yoga, biking, traveling with friends and family, learning French and exploring everything city life has to offer.
Kathryn Peter, LAc, DACM
Director of Acupuncture
Katy (she/her) is a licensed acupuncturist who believes in empowering...
Samuel Gilbert, MS, LMSW
Samuel Gilbert is a licensed psychotherapist based in New York City, earning his Master of Social Work degree magna cum laude from Columbia University. His award-winning scholarship, published in the Columbia University School of Social Work Review, focuses on LGBTQ+ survivors of sexual violence. He has extensive experience working with individuals with a variety of mental health disorders including anxiety, depression, substance use disorder (SUD), addiction, and post-traumatic stress disorder (PTSD). He also has experience—and specific training—to work with individuals who identify as LGBTQ+.
Samuel takes a holistic approach with his clients. In addition to utilizing evidence-based mental health interventions (e.g. Cognitive Behavioral Therapy, Dialectical Behavioral Therapy, Motivational Interviewing, etc.), he believes quality sleep, a well-balanced diet, consistent exercise, and one’s spirituality are paramount to the therapeutic process. He is steadfast in working alongside his clients to help each individual, couple, and group develop tools and strategies to achieve their specific goals.
Samuel Gilbert, MS, LMSW
Psychotherapist
Samuel Gilbert is a licensed psychotherapist based in New York...
Elizabeth Latsos, MS, LMSW
Elizabeth is a licensed psychotherapist working with adolescents and young adults providing both short and long-term therapy. Her goal is to help clients heal, grow, and aim to be the best versions of themselves. She believes that no one has the same story, therefore she meets clients where they are by cultivating a supportive, empathic, and non-judgmental space to listen and then determine what unique steps need to be taken in therapy. Elizabeth prefers to use a strengths-based and humanistic approach in her work and incorporates CBT and DBT techniques as needed.
Her background is in working with children and young adults who have struggled with a variety of difficulties. She offers knowledge and coping skills in anxiety, depression, grief, stress, life transitions, interpersonal relationships, self-esteem, school difficulties, insomnia, attachment, behavioral issues, domestic violence, and more. She earned her master’s degree in social work at NYU and her undergraduate degree at Manhattan College.
Elizabeth values connection, kindness, love, and strength. She believes that everyone has the ability to become the best versions of themselves and that there is always room for growth. Outside of her practice, she enjoys spending time outdoors, pilates, meditation, reading, traveling, and spending time with friends and family.
Elizabeth Latsos, MS, LMSW
Psychotherapist
Elizabeth is a licensed psychotherapist working with adolescents and young...
Emma Harger, MS, LMSW
Emma Harger is a licensed psychotherapist in New York City. She has extensive experience working with teens and young adults, and greatly enjoys helping them grow and achieve their full potential. Her client-centered approach focuses on meeting individuals where they are and working together to discover clients’ needs and goals. Emma firmly believes that each individual is unique and uses a blend of techniques (cognitive behavioral therapy, motivational interviewing, narrative therapy, and talk therapy) to tailor her therapeutic approach to each client. She is passionate about human connection and relationships to promote individual understanding, growth, and change.
Outside of work, Emma enjoys being active through cycling, running, and doing yoga. She also enjoys playing classical piano and singing in choirs.
She holds a masters in social work from Columbia University and a bachelors in psychology and German from Carnegie Mellon University.
Emma Harger, MS, LMSW
Psychotherapist
Emma Harger is a licensed psychotherapist in New York City....
Cristina Shea, MS, LMSW
Cristina is a licensed psychotherapist practicing in New York, with a primary focus on emotional, social, and behavioral challenges faced in early adulthood, adolescence, and childhood. Her client-centered approach is grounded in attachment and cognitive behavioral theories. Cristina is passionate about helping her clients find comfort with everyday thoughts, emotions, and experiences that contribute to living a full life.
Whether coming to her in a time of crisis or beginning therapy to maintain a healthful state of mind, Cristina takes a gentle and holistic stance with each client, developing a treatment plan that is unique to their needs. Her approach caters to varying client needs, including, but not limited to, anxiety disorders, depressive disorders, eating disorders, neurodivergence, trauma, and gender and sexuality struggles and exploration. She is always eager to learn more and is frequently engaging in opportunities to learn and expand her knowledge.
Outside of her practice, Cristina is an adjunct lecturer, a 200-hour registered yoga teacher, and an avid runner.
Cristina received her graduate degree in social work from New York University and her undergraduate degree in psychology from Marymount Manhattan College.
Cristina Shea, MS, LMSW
Psychotherapist
Cristina is a licensed psychotherapist practicing in New York, with...
Lisa Henshaw, PhD, LCSW
I am a Clinical Social Worker with over 10 years of experience working with adults with a broad range of mental health difficulties, including posttraumatic stress, loss and grief, depression, anxiety, relationship difficulties and more. My area of research and practice expertise has broadly focused on the field of trauma, which often entails working through associated grief, anxiety, mood, identity, and relationship difficulties concurrently.
I bring a down-to-earth, warm, and genuine approach to therapy. My style is open and supportive, committed to providing individuals with a safe space that honors their unique goals and expectations. Through a relationship built on trust, we’ll work together in a space where you feel comfortable to be who you are, helping you find ways to better understand, manage, or move forward from what challenges brought you to therapy. My hope is to make a difference in the life of every individual I work with, and I believe that therapy should not be a one-size-fits-all approach.
I use techniques from cognitive-behavioral, narrative, and relational models of intervention, including mindfulness, and while always incorporating a trauma-informed lens as I tailor the work to meet your unique needs. My clinical style is not to give advice but to support and empower individuals towards their goals with honesty and transparency. This can include developing healthy coping skills, processing grief or trauma from the past or present, exploring what you want in life both professionally and in relationships, and ultimately supporting you to reclaim your power and self-worth.
Lisa Henshaw, PhD, LCSW
Psychotherapist
I am a Clinical Social Worker with over 10 years...
Alex Nourishad M.D.
Alex begins every therapeutic relationship with a comprehensive assessment that helps guide the direction of treatment. He then works with you to develop a plan that will meet your individual needs and concerns. If medications are recommended, Alex will discuss the risks, benefits, and alternatives with you thoroughly and walk you through a road map of both the results and possible side effects you might reasonably anticipate. If psychotherapy is recommended, you will have the opportunity to discuss whether you would prefer to have a collaborating psychotherapist or work with Alex in this capacity.
Alex takes a relational approach, which means you can expect a casual conversation style that brings awareness to the therapeutic alliance and is unafraid to lean into his various intersectional identities (e.g. LGBTQ, first-generation American, musician) to unlock a vocabulary of shared or divergent life experiences. He prefers to combine psychotherapy with psychopharmacology to achieve optimal results, employing evidence-based techniques from CBT, psychodynamic, and brief relational frameworks.
Areas of focus include exploring identity-related concerns, self-esteem, body image, substance abuse (including medication-assisted treatment with Vivitrol and Suboxone), anxiety, depression, bipolar disorder, ADHD, OCD, PTSD, personality disorders, and more. Alex has specialized experience working in LGBTQ community healthcare and outpatient addiction treatment center settings.
Outside of work, Alex loves to eat, travel, and make music. He sings in an a cappella group and chorus and loves to work on individual projects in songwriting, recording, and music production.
Education, Training & Credentials:
- Undergraduate: BS, Biological Sciences, Stanford University (Palo Alto, CA)
- Medical School: MD, Geisel School of Medicine at Dartmouth (Hanover, NH)
- Residency: Adult Psychiatry, Icaahn School of Medicine at Mount Sinai in affiliation with Mount Sinai Beth Israel (New York City, NY)
- Board Certification: American Board of Psychiatry and Neurology
Alex Nourishad M.D.
Founder & Psychiatry President
Alex begins every therapeutic relationship with a comprehensive assessment that...
Rachel Moses, MA, MHC-LP
Rachel is a graduate of the master’s in mental health counseling program at Brooklyn College and currently has her MHC-LP. She is dedicated in her work to foster a safe space for all clients to speak openly about life and all that comes with it. Compassionate and patient, she takes on a person-centered approach to ensure clients are being heard and accepted as they are. Rachel also uses evidence-based treatments in her work. She believes that everyone has the potential to grow, to learn, and to flourish already inside of them.
During her free time, she enjoys baking, knitting, listening to Broadway cast recordings, and spending time with her pet dog and parakeet.
Therapy is unlike any relationship and this can be intimidating, but you have taken a brave first step by researching and reaching out. I look forward to hearing from you!
Rachel Moses, MA, MHC-LP
Psychotherapist
Rachel is a graduate of the master’s in mental health...
Artur Lebiedzinski, MA, MHC-LP
Artur has been working in the mental health field for several years and holds a Master’s degree in Mental Health Counseling. He has worked with various populations such as those struggling with COVID-19 stress, personality disorders, adjustment disorder, anxiety, depression, body image, relationship issues, and more.
In practice, Artur considers personality, historical context, and the complexities of distress tolerance. His personal experience growing up in several countries has shaped his unbiased views and recognition of alternative perspectives. Everyone is different, and each client deserves the utmost level of attention, responsiveness, and uniquely personalized approach when engaged in treatment.
Artur believes in each person’s unique ability and capacity to overcome their challenges. He uses a person-centered and evidence-based approach to foster curiosity, safety, and openness to growth.
He enjoys spending time with friends, playing video games, basketball, cooking, hiking, and fishing. Artur is proficient at providing psychotherapy in English and Polish.
Artur Lebiedzinski, MA, MHC-LP
Psychotherapist
Artur has been working in the mental health field for...
Hanni Flaherty, PhD, LCSW-R
I am a New York City-based Clinical Social Worker specializing in adolescents, young adults and families. Over the past 10 years, I have worked with clients who struggle with a wide range of issues. My areas of expertise include treating adolescents and young adults with family conflict, substance use, high-risk behaviors, self-harming behaviors, anxiety, depression, mood disorders, personality disorders, trauma, bullying, gender and sexuality struggles.
I practice uses a Cognitive Behavioral Treatment approach that takes into consideration each person’s strength and experience. I have a Ph.D. in clinical social work, an LCSW-R and a CASAC. I am also trained in Trauma-Focused Cognitive Behavioral Therapy, Motivational Interviewing, and Family Structure Therapy. In addition, I am a Certified Addiction and Substance Abuse Counselor (CASAC) and New York State DUI evaluator.
My treatment style encompasses open and honest communication to help clients achieve their goals through short-term treatment, long-term treatment, family therapy, and group treatment. Through the development of a strong therapeutic alliance, we work together to develop effective coping skills. In treatment, I strive to create a safe, understanding and collaborative atmosphere where my clients can share their emotions and explore their struggles. We all have the ability to overcome obstacles and achieve our goals. Therapy should be a helpful force in achieving life goals and overcoming life struggles.
Hanni Flaherty, PhD, LCSW-R
Founder & Director of Clinical Social Work
I am a New York City-based Clinical Social Worker specializing...
Kyle McEvoy, MS, LMHC, CCMHC
Kyle utilizes a client-centered based approach to therapy by adapting to individual needs. He focuses on the unique needs to support the person’s internal/external relational system healthily and clearly to reach overarching goals.
He believes everyone can better themselves if they are willing. Kyle studies the development of personality disorders from a psychoanalytic perspective. Kyle has advanced training in integrating complex psychological structures and fragmented mental health systems through the Anna Freud Centre for Children and Families.
Kyle has helped people with substance abuse issues, explore individual identity (LGBTQ), cope with psychological/cognitive/developmental disorders, accept medical diagnoses, overcome sexual abuse/intimate partner violence, and various maladaptive behaviors or modes of thinking. Throughout his career, Kyle continues to add his experience and knowledge into expanding mentalization-based treatments.
Utilizing an eclectic approach to therapy and his training in various evidence-based modalities, Kyle seeks for you to receive the most out of your treatment. Kyle will implore you to be an active participant in your treatment and discuss the treatment techniques. He encourages you to focus on your needs and what you think is best. Kyle is trained in Mentalization-Based Treatment for Adults, Adolescents, and children, along with Adaptive Mentalization-Based Integrative Treatment for complex systems. Kyle is adding to his educational arsenal by registering with the Center for Modern Psychoanalytic Studies to pursue his license in Psychoanalysis. As a leader in the mental health field, Kyle is the founder and president of Collaborative Therapy, a group therapy practice dedicated to multifaceted psychological disorders.
For fun, Kyle loves spending time with friends, traveling, relaxing with his dog (Otis), lying on the beach, and listening to music.
Kyle McEvoy, MS, LMHC, CCMHC
Founder & Therapy President
Kyle utilizes a client-centered based approach to therapy by adapting...
Dawnmarie Sumners, WPCC, TICC
Dawnmarie is a true believer in living as your authentic self. She is passionate about empowering people to become fully connected with who they are and who they can become. Dawnmarie advocates for you to use your voice and your talents to take steps forward. Dawnmarie utilizes her unique personality to create a secure connection with those she works with. She describes herself as positive, compassionate, empathetic, fun, creative, strong, intuitive, and passionate.
Dawnmarie is positive about life and encourages you to embrace a new perspective. She advocates for a “glass half full” mentality. Dawnmarie works with clients who want to embrace life, make changes, be heard, and find peace. Together you can achieve many things, develop a plan, and gain the tools to be successful. Whether it be your Professional or Personal life, together, we can master love, happiness, and a sense of SELF.
Dawnmarie Sumners, WPCC, TICC
Life Coach
Dawnmarie is a true believer in living as your authentic...
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