Our Staff

Administrative Team

Gena Kopytov
CEO/Program Director

With over a decade of experience in behavioral healthcare, MrKopytov currently serves as Program Director and CEO for Warner Park Recovery Center in Woodland Hills, CA. MrKopytov has fulfilled various roles within the Mental Health and Substance Abuse community since completing his education and earning a degree in Healthcare Administration and Management. Early on in his career, MrKopytov collaborated with his family to establish an Adult Day Health Care Center aimed at providing support to geriatric patients with various mental health disorders. There he fulfilled his role as Executive Administrative Assistant and found his inspiration to help others. In 2010, MrKopytov transitioned into a hospital setting where he served as the Occupational Safety and Health Administration Supervisor, managing hospital safety and compliance within OSHA codes and regulations. In 2013, MrKopytov focused his attention on working with dual-diagnosis inpatient and outpatient treatment centers where he fulfilled his role as Operations Manager, managing the well-being of clients and the integrity of various treatment programs by providing client and staff supervision. In 2014, MrKopytov developed a prominent Mental Health and Duel Diagnosis outpatient program in Malibu, CA  where he served as its Director of Operations, Admissions and Business Development. In 2017, MrKopytov decided to take his years of experience and create his own outpatient program with a clear vision to set the standard in behavioral healthcare. With a proven reputation within the Mental Health and Substance Abuse community, MrKopytov continuously strives to  elevate his clients and peers to the best versions of themselves.

Robert Oberlander
Director of Operations

Robert Oberlander has been working in mental health and substance abuse treatment since 2015. Robert’s experience in the field is wide-ranging. Robert initially began working with a wilderness therapy program before settling into a more formal role managing a women’s dual-diagnosis facility, and has diverse experience in an admissions and operations capacity. Robert has a background in the humanities that provided him with a willingness to understand and incorporate diverse perspectives into his personal lexicon, thus enabling him to engage the many challenges brought about by mental health and substance abuse treatment.

Robert’s drive for his work is derived from his personal experience with addiction. Robert believes in a multifaceted approach to recovery, and that personal recovery is strengthened through a resource based approach. He has worked closely with thousands of clients with the hope of assisting them in finding a measure of the serenity he has found through the process of recovery. Robert believes that sobriety offers those suffering from addiction the opportunity to engage life in unimagined, unforeseen capacities, and find freedom, self-attainment, and self-actualization.

Natalie Martin, MA, CATC III
Director of Outreach

Natalie Martin has over six years of experience in the Substance Abuse and Mental Health field. She began her education at Pierce College where she obtained her CAADE credentials and graduated with her CATC III. Natalie furthered her education at Antioch where she graduated with her Masters in Clinical Psychology with the goal of being a Licensed Marriage and Family Therapist. Natalie has experience as a sober companion working with high profile clientele and experience in managing operations and admissions. Natalie brings a unique perspective to our team and understands the ins and outs of mental health and substance abuse treatment. Natalie’s personal experience comes from her family’s struggle with substance abuse and chemical dependency. Natalie’s personal, professional and educational experience has laid the foundation for a compassionate, caring approach, and a desire to see clients manifest their inherent potential.

Gabrielle Maia
Admissions Coordinator
Gabrielle Maia began her journey with Warner Park Recovery Center as a client
struggling to get her life back. Gabrielle obtained her RADT certification post graduation from the program with desire to give back to the community and fulfill her wish to be of service. Gabrielle takes joy in witnessing clients’ process and prides herself on being an empathic, compassionate, creative, and open-minded initial face of Warner Park, IOP. As an intake coordinator, Gabrielle creates a warm, welcoming, and most importantly, non-judgmental environment for each and one of her clients. Gabrielle brings her unique experience to WPRC as not only someone who has been able to maintain long-term sobriety and health, but alumni willing to share her story and encourage a possibility of change.
Grant Ota
Client Advocate

Grant Ota has tremendous experience in behavioral health treatment having gotten clean and sober himself over 10 years ago. Presently, Mr. Ota is involved with several non-profit self-help groups including Alcoholics Anonymous, Narcotics Anonymous, and Cocaine Anonymous, where he contributes his years of experience by sponsoring those looking for help. Mr. Ota brings a relatable and beneficial perspective to clients working to overcome addiction. He has a passion for surfing, skateboarding, social media, and nature. Mr. Ota is in charge of client transportation and utilized to promote and lead outdoor activities with clients on a weekly basis.


Dr. Richard Sandor

Clinical Team

Larisa Krichevsky, LMFT
Clinical Director

Larisa Krichevsky is a Licensed Marriage and Family Therapist whose deep interest in the human psyche originated very early in her development. She has always possessed an intense interest in human behavior, and relationships which precipitated her journey into the world of professional psychotherapy. She has earned her Bachelor of Arts Degree from the University of Southern California Los Angeles (UCLA) and Masters of Arts Degree in Clinical Psychology with an emphasis in Marriage and Family Therapy from Pepperdine University.

Larisa’s philosophy and clinical practices are solution-focused and strength- based. Larisa offers vast experience, knowledge and guidance to families and individuals confronted with painful emotions and complexities inherent in mental health disorders and addiction. Larisa is dedicated to fostering growth in a safe and nurturing environment. Her treatment approach is tailored to who the client is, where the clients strengths lie, and the clients needs as a unique individual. As a therapist, Larisa aims to assist clients in improving their self-esteem, increasing joy in life, enhancing relationships, developing authenticity, and decreasing mental health symptoms such as depression and anxiety. Larisa’s ultimate goal is to empower clients to create change within themselves, have their needs met in relationships and to help every client feel accepted, valued, and understood. She works collaboratively, relationally, and proactively in an environment that is nurturing, loving, and accepting of each individual client.

In addition to her private practice experience, she has great experience working with, individuals, couples, families and groups in a variety of treatment settings. Theoretically Larisa is eclectic in her approach. She has been greatly influenced by the Attachment Theory, Emotion Focused Couples Therapy, Inter-subjectivity Theory, Family Systems Theory, Positive Psychology, and Solution-Focused approach.

Wendy Roehr, LMFT
Primary Therapist

Wendy Roehr is a Associate Marriage and Family Therapist, who comes to Warner Park Recovery with 12 years of clinical experience. She has spent over eight years in the field of addiction recovery and co-occurring disorders helping individuals, couples and families in their process of recovery: repairing, rebuilding and supporting them in motivation toward a healthier lifestyle.

 In addition, Wendy spent several years gaining experience in working with children, adolescents and their families in foster care. She counseled families in crisis while working hand in hand with a California State Agency to meet court ordered requirements for the ultimate goal of family reunification. She provided in-home support for many families using attachment and family system based modalities. She was also on-site at a California Community college seeing students and working with teen mothers. She developed a program that ran weekly to aide students in skill development and communication. She held interactive groups, psychoeducation, and didactic groups to support interpersonal development, relationship and positive change.

Wendy received her Bachelor of Science degree in Sociology and a Master of Science degree in Counseling with an emphasis on Marriage and Family Therapy from California State University, Northridge. Wendy has gained a wealth of experience during her career working with individuals experiencing trauma, addiction, family reunification, mental health and co-occurring disorders. She has worked with children, adolescents and adults in family, couple and group settings. She uses multiple modalities of therapy, designed to best meet the needs of the client. These styles include DBT, CBT, Psychodynamic, Person-Centered, Motivational Interviewing, Family Systems & Trauma focused.  Wendy has a passion for her work and a strong belief in the therapeutic process as a healing tool.

Outside of work, Wendy supports her personal well being with physical fitness, yoga, hiking, healthy cooking & nutrition. She is spiritually motivated, and believes in a healthy mind and body connection. She enjoys spending time with family and friends, going to church, travel and having new adventures & experiences.

Shawn Wilson, LMFT
Primary Therapist
Shawn earned his Master’s Degree in Psychology at National University and received his training at the Center for Individual and Family Counseling in North Hollywood, CA. Shawn began a career with the Los Angeles County Probation Department in 2004 and this is where he realized his passion for helping others through the challenging times in life. Shawn’s main motivation is to assist his clients with recognizing their potential that they have buried deep down inside and realizing there is hope even when they feel hopeless.
Shawn has been working in the field of Mental Health and Substance Abuse for almost 10 years. He specializes in areas of Individual, Family and Group Therapy, Addiction/Co-occurring Disorders, Relapse Prevention, and Anger management. Shawn has an amazing wife and family that include 5 children ranging in ages 20 to 10 months. Shawn is extremely involved in his community and volunteers at Adventist Health Simi Valley where he and his wife facilitate a Heart Patient Support Group.
Zack DiLiberto, MA
Group Facilitator

Zack has practiced as a group facilitator for over a decade in the mental health and behavioral health field. With degrees in Health Science Education and Experimental Psychology, Zack sought out to develop a unique approach to helping people overcome emotional difficulties. While at the University of Florida, Zack interned with clients struggling with mental health and chemically dependency symptoms  These early experiences touched Zack deeply, and changed the way he viewed the human experience. He saw the unique creativity that these individuals had, and began developing a therapeutic style that combined music and artistic expression with traditional philosophies. Recovery Based Music Therapy (RBMT) eventually became Zack’s specialty.  Combining music and artistic expression with 12-step principles have helped Zack recover from his own substance abuse issues and has provided some of the most challenging and rewarding experiences of his life.

Karine Echigian, MA
Group Facilitator

Karine Echigian graduated from California Lutheran University with a Master’s of Science in Counseling Psychology, with an emphasis on Marriage and Family Therapy. Ms. Echighian has made it her mission to help individuals become stronger versions of themselves. She uses her passion to help individuals, of all ages, discover how to use their strengths to navigate the world. Her goal is to help couples deepen their relationship and improve their communication, while strengthening the family system through understanding.

As part of her training, Ms. Echighian has worked at the Community Counseling Parent and Child Study Center. She has had the opportunity to work with clients with various diagnosis including Narcissistic Personality Disorder, Borderline Personality Disorder, Depression, Anxiety and Adjustment Disorder. During her internship at Independence Community Treatment Clinic, Karine provided support and education to individuals with various mental health issues and substance use disorders. She facilitated group discussions and presented on various aspects of mental health and chemical dependency.

Sarit Rogers, RYT, SEP
Group Facilitator

Sarit is a Somatic Experiencing Practitioner, Trauma Informed Yoga teacher, group facilitator, accomplished photographer and published writer. Somatic Experiencing™ is a body-oriented approach to healing trauma and other stress disorders. Somatic Experiencing was created as a result of work studying animal behavior, psychology, neuroscience, stress physiology, medical science, and indigenous practices. Sarit has also been teaching yoga to incarcerated and underserved populations since 2014, some of which include Eastlake Juvenile Hall, California Institution for Women, Twin Towers Correctional Facility, and California State Prison, Lancaster. Sarit also works with adolescents in treatment, facilitating groups, teaching trauma-informed yoga and providing individual SE sessions.

Sarit’s group facilitation focuses on providing psycho-education about the nervous system, healthy shame vs toxic shame, polyvagal theory as it relates to internal safety, techniques for grounding, resourcing, and centering, and helping clients access self-regulation tools to use in support of their recovery, such as learning the language of sensation, and how to build a broader capacity for recognizing their impulses and feelings, creating healthy boundaries, and learning to self-regulate while under stress. Sarit believes that conveying information about the nervous system, how it responds to trauma, indicators of what trauma looks like in the body and various ways in which it can manifest, helps clients gain a better understanding of their own internal experiences and provides skillful tools with which to manage their discomfort. Using experiential somatic based exercises, Sarit provides clients with opportunities to build mind/body awareness in order to learn to identify uncomfortable experiences while gently moving their attention toward healthy resources, using skillful self-regulation skills. Sarit approaches teaching and group facilitation from a place of compassion, kind awareness, tapping into her personal experiences with trauma and her own 25 years of recovery from addiction.

Rebecca Greenough, CADC
Group Facilitator
Becky has dedicated her life to the recovery process with over 25 years of involvement in the addiction and mental health field. Utilizing 33 years of her own personal recovery journey, Becky uses evidence-based treatment modalities and has mastered many useful practices in facilitating group therapy. Becky understands that most people with a substance abuse problem have or may be dealing with an underlying mental health condition. Becky believes that trauma of many forms is a driver of re-occurring substance abuse problems. It takes a team of mental health professionals and addiction specialists to support recovery in an individual. She believes each person should have the opportunity and support to gain dignity and health in their lives. It is her privilege to share in recovery and let the light of the spirit shine.
Becky has been happily married for 32 years and has raised two beautiful daughters. She enjoys camping, hiking and kayaking. Becky is also a renowned practitioner of martial arts and teaches self-defense in her spare time.
Alla Poberesky, MA
Group Facilitator
Alla Poberesky is a UCLA-Certified Mindfulness Facilitator, a Clinical Psychology PsyD candidate, a Registered Alcohol and Drug trainee, and a Mindfulness-Based counselor and meditation teacher. She has been facilitating therapeutic groups in both outpatient and inpatient mental health, alcohol, and drug treatment centers for many years. She offers a mindfulness-based process which helps uncover the root causes, conditioned beliefs, and habitual patterns that have held clients back; allowing them to become more present, empowered, and resilient in their lives.
Alla has worked with chronic anxiety, depression, trauma/PTSD, co-dependency, relapse prevention, and addictions of all forms. Trained in Mindful Self-Compassion by Dr. Kristen Neff and Dr. Christopher Germer, she offers a self-compassionate approach and process of healing which enables clients to meet the challenges life presents from a place of clarity, compassion, and a regained trust in oneself. Alla has developed a curriculum intended to help re-wire destructive patterns, beliefs, and automatic reactions and instead foster increased awareness, self-understanding, self-acceptance, and path to becoming your own refuge.
Alla is extensively involved with Against the Stream Buddhist Meditation Society, has studied at InsightLA, Spirit Rock Meditation Center, and completed Spirit Rock’s Dedicated Practitioner’s Program. She is a long time Vipassana (Insight) Buddhist meditation practitioner herself and has studied and practiced both secular and non-secular mindfulness in the US and Asia. Along with her certification in mindfulness facilitation from UCLA, Alla holds a B.F.A from Syracuse University, is trained in Mindful Self-Compassion from UCSD School of Medicine, participated in MAPs Teacher Training program at UCLA, and is currently working on her doctorate in clinical psychology.
Dr. Pepper
PhD, Director of Emotional Support

Dr. Pepper comes to Warner Park Recovery Center with about 3 years of challenging life experience. He struggled on the streets until he arrived at the Camarillo Animal Shelter, shaggy and withdrawn. His handler picked Pepper from 100+ dogs to provide his unconditional love, attentiveness, and regulatory support after the experience of trauma. Pepper brings his personal expertise to Warner Park Recovery providing emotional support for our clients, giving them comfort in his calm presence, gentle and submissive approach and playfulness. He has used these challenging experiences of his life and calm nature to make him a well-rounded and emotionally supportive addition to the WPRC team.

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Clinical Team

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5855 Topanga Canyon Blvd. Suite 150 Woodland Hills CA, 91367


Phone: 818-916-6869


Mon to Fri: 9:00 AM – 10:00 PM

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