Meet the Team Behind Your Care

From board-certified emergency medicine physicians and psychiatrists to licensed therapists and psychiatric nurse practitioners, every member of our team is here for one reason:

To help you feel better — safely, compassionately, and with clinical precision.

Guiding Keta’s Vision

Our founders

Dr. Haviva Malina is a licensed emergency medicine physician with more than 15 years of experience caring for patients in high-acuity settings. She graduated Phi Beta Kappa, Summa Cum Laude, from Barnard College of Columbia University, receiving departmental honors in Psychology and earned her medical degree from Albert Einstein College of Medicine. She completed her Emergency Medicine residency at the Jacobi/Montefiore program. Dr. Malina became a proponent of ketamine therapy after seeing its rapid and meaningful impact on patients with treatment-resistant depression, anxiety, PTSD, and other mood disorders—particularly during the mental-health crisis of the COVID-19 pandemic. At Keta Medical Center, she leads with a focus on patient safety, compassionate care, and improving access to evidence-based treatments including Spravato®.

Dr. Cheryl Malina, a board-certified emergency medicine physician, is the co-founder of Keta Medical Center. With over 15 years of experience, Dr. Malina has practiced extensively in hospitals across the Bronx and Westchester. She graduated Phi Beta Kappa from Barnard College at Columbia University and earned her medical degree from Albert Einstein College of Medicine, completing her residency at the Jacobi/Montefiore Emergency Medicine Program. Dr. Malina later moved to attending physician roles at several hospitals, most recently as an attending physician at the Good Samaritan Hospital in Suffern, New York. Dr. Malina’s interest in ketamine therapy was sparked during the COVID-19 pandemic, as she observed a surge in acute psychiatric cases. Impressed by the rapid, positive changes ketamine brought about in patients she became a strong advocate for its use in treating conditions like depression, anxiety, and PTSD.

Supporting your healing

Our psychiatrists and therapists

Yonit Malina has over 25 years of experience providing therapy across clinical, school-based, university, and private practice settings. Yonit currently serves as the Clinical Director of Psychotherapy at Keta Medical Center, where she oversees the therapy team and provides ketamine assisted psychotherapy (KAP) to patients. Her therapeutic approach is strengths-based, empowering individuals to overcome life’s challenges and heal from trauma. Yonit draws on a range of therapeutic modalities, including psychodynamic therapy, internal family systems and cognitive behavioral therapy, to tailor treatment to each patient’s unique needs. Yonit’s clinical interests include mood disorders, learning disabilities, ADHD, autism spectrum disorder and other developmental disorders, post traumatic stress disorder (PTSD), grief, and family dynamics.

Dr. Ariel Heller is a board-certified adult psychiatrist with over seven years of experience providing compassionate and comprehensive mental health care. She has worked in a variety of hospital settings, giving her broad clinical insight across the spectrum of psychiatric care. Dr. Heller brings a collaborative and patient-centered approach to her work. She specializes in treating adults from young adulthood through the geriatric years, with a strong emphasis on building therapeutic relationships and working alongside her patients to help them achieve their mental health goals.

Salina Xu is a medical office assistant at Keta Medical Center with experience in primary care, cardiology, gastroenterology, ophthalmology, and optometry. She previously worked as a medical scribe and office coordinator, bringing a strong background in patient care and office management. Salina holds a Bachelor of Science in psychology and is passionate about destigmatizing mental health and making healthcare more accessible. Outside of work, Salina enjoys flower arranging, pottery, photography, and spending time with her dog, Stormi, whom she loves dressing up.

Angela Amoia is a New York Licensed Marriage and Family Therapist and Psychedelic-Assisted Therapist with over 25 years of clinical experience working with individuals, couples, and families. She specializes in supporting clients navigating trauma, depression, anxiety, and relational challenges. She has a deep commitment to LGBTQ+ mental health and brings over 25 years of experience working with the LGBTQ+ community. Angela has completed a rigorous, internationally based three-year training program in psychedelic-assisted therapy. She works closely with clients to provide thorough preparation and thoughtful integration, helping them make meaning of their experiences and translate insights into lasting change. Angela’s approach is rooted in clinical expertise, relational attunement, and a deep respect for each client’s unique healing process. Her goal is to help clients access new perspectives, build resilience, and move toward meaningful, sustainable transformation.

Charlea Muñoz, a licensed clinical social worker, is a thoughtful and experienced psychotherapist with a strong foundation in trauma-informed care. She earned her master’s degree in clinical social work from Fordham University and has provided psychotherapy and crisis intervention support to clients across nonprofit, private practice, and integrated care settings.

Crystal Persky is a dual board-certified Psychiatric Mental Health and Acute Care Nurse Practitioner with over a decade of clinical experience providing compassionate, evidence-based care across both medical and psychiatric settings. This background gives her a broad clinical perspective, allowing her to consider both physical and mental health factors in treatment planning. Crystal places a strong emphasis on building a meaningful therapeutic alliance, ensuring that patients feel heard, understood, and actively involved in their care. She prioritizes spending time with patients and providing clear education so they can fully understand their treatment options and participate in informed decision-making. She is committed to evidence-based, patient-centered care and stays engaged with emerging treatments to offer the best possible outcomes. Crystal has a particular interest in treatment-resistant mood disorders and brings experience in the use of ketamine-based therapies as part of a comprehensive treatment approach. She works collaboratively with patients to develop individualized treatment plans that address their unique needs and goals.

Hillary Eastman is a highly experienced licensed clinical social worker. She has a wealth of expertise in mental health care, having worked in outpatient, inpatient, and residential treatment settings across New York and Texas. She specializes in evidence-based approaches such as cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and trauma-informed care, helping individuals, couples, and families navigate challenges like anxiety, depression, and PTSD.

Ensuring safe, expert-led care

Our in-office physicians

Dr. Marra is a board-certified emergency medicine physician with over two decades of experience in acute care. After earning a Doctor of Osteopathic Medicine degree from Rowan University School of Osteopathic Medicine in 2000, Dr. Marra completed an emergency medicine residency at Albert Einstein Medical Center in Philadelphia in 2004. Since becoming board certified in 2005, he has dedicated his career to providing compassionate, evidence-based emergency care while pursuing a special interest in substance abuse and addiction treatment. His work bridges the gap between emergency medicine and long-term recovery, helping patients access critical resources and support during times of crisis. Dr. Marra joined the team at Keta Medical Center in July 2024.

Dr. Apiradee Sanglimsuwan is a board-certified emergency medicine physician with a passion for innovation and excellence. Since 2019, Dr. Sanglimsuwan has been an integral part of Montefiore Medical Center and an assistant professor at Albert Einstein College of Medicine. With a background in chemical engineering from MIT, she combines her technical expertise with a patient-centered approach to enhance care and lead impactful quality improvement projects. Dr. Sanglimsuwan is also deeply dedicated to mentorship, actively supporting resident education and fostering growth in future medical professionals.

Dr. Silva is a board-certified emergency medicine physician with over 10 years of clinical experience at BronxCare Health System. A proud product of New York University School of Medicine, he completed both medical school and residency training at the institution. Dr. Silva has developed a deep interest in the evolving therapeutic landscape of ketamine – particularly its expanding role in the treatment of depression, PTSD and substance use disorders. He is passionate about bringing a rigorous, patient-centered, and safety-first approach to ketamine-assisted therapy as a transformative option for patients who have not found relief through traditional therapies.

Driving care excellence

Our nursing staff

Hillary Oriol is a registered nurse providing care for individuals with treatment-resistant depression. Her role focuses on patient safety, therapeutic monitoring, and compassionate support throughout the ketamine treatment process. Hillary is committed to helping patients regain hope and improve their quality of life through innovative mental health care.

Bindi Patel is a registered nurse whose background in acute care informs her empathetic and detailed approach to ketamine therapy. She is dedicated to creating a calm, supportive environment where patients feel informed and empowered throughout their healing process.

Guiding you along the way

Patient liaisons

Paul Rosales is the Manager of patient experience & engagement at Keta Medical Center. He has over a decade of healthcare experience, including work with global mental-health organizations like the Child Mind Institute. He oversees the patient journey across all clinics and specializes in bridging clinical operations, mental-health programs, psychopharmacology, and patient education to design care experiences that are both equitable and impactful for diverse patient populations. Paul holds a degree from Montclair State University and focuses on public health, social work, and research related to mental-health access, and patient experience. He is driven by a commitment to health equity and building systems that work better for patients.

Furtuna Aliu is a patient experience liaison at Keta Medical Center, dedicated to ensuring every patient feels supported, informed, and cared for throughout their mental health journey. With a background in the arts and hands-on experience as both a clinical and medical assistant, Furtuna brings a unique blend of empathy, creativity, and professionalism to her role. She is passionate about streamlining the patient experience, helping individuals access the full range of Keta Medical Center’s resources, and fostering an environment where every voice is heard. At Keta Medical Center, her goal is to make each visit feel relaxing, supportive, and deeply personal.

Danielle is a patient experience liaison at Keta Medical Center, and deeply committed to expanding access to quality mental health care. Her background includes supporting patients through complex healthcare journeys, refining clinical operations processes, and collaborating with multidisciplinary teams to improve care delivery. Currently pursuing her Master of Social Work at Fordham University, Danielle is passionate about addressing psychosocial barriers to help patients access the support they need to thrive. At Keta Medical Center, her goal is to ensure every patient feels valued and supported throughout their journey.

Always here to welcome you

Office administrative staff

Jennifer Barrios is a healthcare operations leader passionate about scaling early-stage healthcare startups that drive innovation and deliver meaningful solutions in the healthcare industry. With over a decade of experience in multi-site management, process optimization, and team development, Jennifer has led growth and expansion for organizations across medical, sports & wellness, regenerative health and mental health sectors. Currently, Jennifer serves as Senior Practice Manager at Keta Medical Center, overseeing multi-location operations and care coordination for advanced mental health treatments. Her core expertise spans business growth, process optimization, digital health solutions, and multi-site operations, with hands-on experience managing and empowering geographically diverse teams to deliver exceptional results. Outside of work, Jennifer is an avid tennis player and loves taking art history classes at the amazing museums of New York City.

Lexx brings over 15 years of experience in healthcare, with a background that spans clinical, managerial, and administrative roles across a wide range of diverse healthcare settings. At Keta, she truly enjoys interacting with patients, building rapport, and helping create a supportive and welcoming environment. Lexx is committed to compassionate, patient-centered care and take pride in contributing to a space where individuals feel heard, respected, and supported. In her free time, she enjoys reading and spending quality time with friends and family.

Alexis is a caring and organized medical office administrator who enjoys creating a positive experience for patients and supporting a smooth, efficient workflow. She values kindness, teamwork, and attention to detail in everything she does.

Dedicated office admin, with experience and background in healthcare. Skilled in managing patient scheduling, and other administrative tasks to support a positive experience for both patients and care team.

Amanda’s professional career has consistently involved administrative and supervisory leadership primarily within a rehabilitation hospital setting. She holds a Master’s degree in Healthcare Administration from Walden University and a BA in Health Science from Sacred Heart University. Her professional responsibilities have consistently involved managing staff, assisting with overseeing daily operations, ensuring compliance with healthcare regulations, and contributing to various hospital departments.

Charleen is a medical office assistant with several years of experience in hospital and medical settings. She is passionate about patient care and loves helping people, coordinating care, and building meaningful connections with patients while providing compassionate, efficient administrative support. Always eager to learn and grow, Charleen strives to combine professionalism, empathy, and strong organizational skills to make a positive impact in every setting.

India is a medical office assistant who brings empathy, organization, and a genuine passion for helping others to every patient interaction. She recently earned her bachelor’s degree in psychology from the University of Colorado Boulder, where she developed a deep understanding of human behavior and mental health. India values creating a welcoming and supportive environment where patients feel comfortable and cared for. Known for her calm and compassionate nature, she strives to make each visit a positive experience and looks forward to growing her career in healthcare while continuing to support others’ well-being.

Isabel is part of our administrative team at KETA, where she supports patients with scheduling, phone communication, and general office assistance. She enjoys helping create a friendly and welcoming environment where every patient feels comfortable and cared for. Isabel values being part of a team dedicated to making each visit a positive experience.

Introducing you to the Keta treatment process

Intake team

Liz Nardelli brings over 20 years of marketing and sales experience to Keta Medical Center. A Massachusetts native and Merrimack College graduate, she began her career with Simon Property Group before serving as Center Director at Sylvan Learning Centers, where her leadership and client-focused approach earned multiple awards. She later directed marketing and business development at Guaranteed Rate. Drawn to Keta Medical Center’s innovative treatments and compassionate care model, Liz is committed to delivering an exceptional patient experience. She lives in Massachusetts with her husband and two children, and enjoys event planning, traveling, cooking, and volunteering in her community.

Based in Vermont, Hannah is a dedicated professional who values balance, family, and creativity. When she’s not at work, she enjoys cooking and spending quality time with her three daughters. Passionate about growth and connection, Hannah brings warmth, authenticity, and purpose to everything she does.

Erin Miller is an intake specialist at Keta Medical Center with extensive experience in customer service and medical patient intake. She takes pride in helping patients feel informed and supported, and is always happy to answer questions about our centers and treatment options. Outside of work, Erin enjoys spending time outdoors, being with family, and relaxing with a hot cup of tea.

Laura Silvestro recently joined Keta Medical Center and brings extensive experience in both customer and sales functions, having worked across various large and small businesses. Her comprehensive skills, particularly in customer service, make her a valuable addition to the intake team. In her free time, Laura enjoys spending time in New Hampshire and on Cape Cod with family and friends.

Jessica makes sure every Keta Medical Center patient meets their insurance requirements with accuracy and care. She manages the prior authorization process from start to finish,—keeping documents, details, and deadlines on track so treatment can move forward smoothly. With a background in marketing and design, Jessica also lends her creative eye to Keta Medical Center’s visual content and helps keep the team organized behind the scenes. Known for her reliability, attention to detail, and calm approach under pressure, she plays a key role in keeping Keta Medical Center’s administrative systems efficient and patient care uninterrupted.

Ashley brings strong communication skills and a passion for helping others to her role at Keta Medical Center. She guides new patients through the intake process with warmth and professionalism, ensuring every individual feels welcomed, supported, and informed from the very beginning. As a bilingual team member fluent in English and Spanish, Ashley is dedicated to making the intake experience smooth and accessible for all patients. Outside of work, she enjoys exploring new restaurants with her family, trying out fun activities around New York City, and getting away to relax at nearby beaches.

A graduate of Eastern Connecticut State University, Jamie Tower brings extensive customer service experience to the healthcare field. Passionate about patient care and clear communication, she is dedicated to ensuring every individual who connects with Keta Medical Center has a positive and supportive experience.

Lisette is a compassionate and dependable professional who brings focus and care to her role at KETA Medical Center. She skillfully manages patient caseloads while ensuring the lead triage process runs smoothly and accurately. With a supportive, collaborative approach, Lisette helps guide patients with clarity and kindness. Her flexibility and strong commitment to continuity of care contribute to a positive and reassuring intake experience for everyone she supports. Outside of work, Lisette always has a soundtrack playing—whether she’s staying productive or spending quality time with friends and family.

Senior management and general administrative staff

Moshe Malina is the CEO of Keta Medical Center. Prior to joining Keta, he spent more than 20 years at Citi in senior leadership roles across technology and legal departments. Most recently, he led a global team responsible for major technology transformations and remediation initiatives. Earlier in his tenure, Moshe served in Citi’s legal department, where he managed teams overseeing patents, mergers and acquisitions, venture investments, and complex tech transactions, and served as general counsel of Citi Ventures, the firm’s corporate venture arm. He began his career as an attorney at Cleary Gottlieb. He holds a Juris Doctor from Columbia Law School and a Bachelor of Science in Chemical Engineering from Columbia Engineering.

As COO, Rachel Olstein Kaplan leads operations and growth strategy for Keta Medical Center. She is passionate about ensuring that more people have access to high-quality, compassionate and effective mental health care. Rachel previously founded and ran Aurora Marketing, and spent seven years at Wix.com. She has served as vice president of marketing at StuffThatWorks, a startup using AI-powered crowdsourcing to help patients identify effective treatments for their conditions, and consulted for KHealth, where she helped build their digital library of healthcare resources. Rachel brings over a decade of experience at the intersection of healthcare, technology, and marketing.

Yoni Bak has over 25 years of construction management experience and a background in civil engineering. He will be overseeing the expansion of the practice into new markets in Long Island, Westfield, NJ and NYC. Yoni is committed to making sure all new offices provide the same warm and pleasant environment our patients have come to expect from Keta Medical Center. Yoni will also be coordinating the implementation of management technology to streamline business operations. Yoni lives in NJ with his wife, 4 children and Bichon-Poodle.

Luke brings years of experience in recruitment, talent strategy, and human resources leadership within healthcare and professional services. Before joining Keta Medical Center, he spent six years with The Nautical Group, supporting major health systems and corporate clients nationwide. His background also includes recruitment and HR roles with Memorial Sloan Kettering, Northwell Health, and Carson Tahoe Health. At Keta Medical Center, Luke oversees hiring, employee relations, onboarding, and benefits across all locations. He is passionate about building teams that reflect compassion, collaboration, and innovation in mental health care.

Jessica Yankus is a marketing and provider engagement leader at Keta Medical Center, bringing over 15 years of experience in healthcare, behavioral health, and neuroscience. Her work has focused on expanding patient access and driving provider adoption across innovative mental health treatments, including SPRAVATO and ketamine-assisted therapy programs. Jessica specializes in building referral networks, developing outreach strategies, and translating complex clinical concepts into meaningful, provider-facing engagement. She is particularly passionate about improving access to care for patients who are not responding to traditional treatment and helping clinicians integrate new tools into their practice. She holds a Master’s of Public Health from Boston University and is currently pursuing a License in Mental Health Counseling. Based in Westchester, New York, Jessica is driven by a commitment to advancing the future of mental health care through both clinical understanding and real-world application.

Amy is a seasoned Human Resources leader with more than 15 years of experience aligning people strategies with business goals and partnering closely with senior stakeholders to drive organizational success. She enjoys building trust, navigating complex challenges, and delivering thoughtful, data‑informed solutions that support both employees and the enterprise. With a career rooted largely in the healthcare industry, Amy brings deep expertise in compensation and benefits, recruiting and talent acquisition, employee relations, workforce planning, and organizational development. She excels at providing strategic counsel to business partners, leading through change, and creating HR programs that enhance engagement, retention, and performance. Beyond her professional accomplishments, Amy is passionate about fostering inclusive, people‑first cultures and mentoring emerging HR talent. Outside of work, Amy enjoys spending time with her family, exploring new places and reading.

Keta Medical Center in the news

Trusted by national media for our clinical expertise in ketamine and mental health care.

ABC National News

ABC News’ Ike Ejiochi follows two patients who came to Keta Medical Center seeking relief for treatment-resistant depression. He speaks with co-founders and medical directors Dr. Haviva Malina and Dr. Cheryl Malina about ketamine therapy and its role in patient care.

Bloomberg

Featured in Bloomberg, Keta Medical Center is part of a growing wave of clinics helping shape the future of mental health treatment as ketamine-based therapies gain mainstream momentum.

Forbes

“In the aftermath of the pandemic, my co-founder Haviva and I were struck by the unmet need for mental health treatment,” said Dr. Cheryl Malina. “I began working at a ketamine clinic part-time and noticed the remarkable relief that patients experienced after treatment.” The article explores how prioritizing mental wellness within organizations drives stronger business outcomes.