Jennifer Hailey, DO

Dr. Jacqueline Lewandowski is a board-certified physician specializing in adult psychiatry. She obtained her undergraduate degree from New York University where she studied psychology and child/adolescent mental health. Dr. Lewandowski received her medical degree from St. George's University in Grenada, before moving back to New York to complete her residency at Morningside and West Mount Sinai Hospitals. Since completion of training, Dr. Lewandowski has practiced and held teaching positions in both the Comprehensive Psychiatric Emergency Department of Harlem Hospital and the inpatient units and psychiatric emergency rooms of Morningside and West Hospitals. Dr. Lewandowski has a wide range of experience treating a diverse spectrum of psychiatric diagnoses and populations. She strongly believes in tailoring treatments through a holistic and patient-centered lens based on individual and multi-faceted histories. During 30-minute monthly sessions, Dr. Lewandowski focuses on collaborating with patients using evidence-based treatments with an emphasis on medication management in conjunction with supportive therapy. Additionally, she may recommend bringing a therapist into your care team to help facilitate a more comprehensive treatment plan. Dr. Lewandowski looks forward to working with you to help achieve and optimize your wellness and improve your quality of life.

Dr. Whitehouse is a board-certified adult psychiatrist with a strong background in neuroscience and psychopharmacology who has been in practice for over 25 years. At the heart of Dr. Whitehouse's clinical approach is a strong emphasis on establishing trust, building a therapeutic relationship to help patients achieve their goals, and helping people better understand their brain, its strengths, and vulnerabilities and how to use assessment and training to maximize everyone's unique emotional and cognitive capacity. Dr. Whitehouse's practice focuses on medication management. Typically, he offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. Occasionally Dr Whitehouse may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome. He received his medical degree from Dartmouth Medical School and went on to complete his residency in psychiatry at MGH in Boston. After completing training, Dr. Whitehouse has worked in every setting from a Community Mental Health Center in rural VT, a General Hospital Department of Psychiatry in Waterbury CT, and a private psychiatric hospital in Massachusetts He has held academic clinical appointments at Dartmouth, Yale and Harvard and provided supervision to medical students, residents, APRNs, Social Workers and Mental Health Clinicians. In addition to his direct clinical work, he has extensive experience with value-based care having worked with the behavioral divisions of CIGNA Behavioral Health, Optum Behavioral Health and MCG. He also has been involved in the latest approaches made possible in mental health by the growth of direct-to-consumer services as part of digital transformation. He believes that every patient is unique and every situation different. He seeks to bring a wealth of experience to bear but, above all, to do so with a personalized and compassionate focus on what will help everyone specifically, practically, effectively, and efficiently. He is especially happy to help people new to emotional help understand the value of different approaches.

Background and credentials    

Dr. Catherine Cashman is triple board-certified by the American Board of  Psychiatry and Neurology in Adult Psychiatry, Child & Adolescent  Psychiatry, and Forensic Psychiatry. She holds two Bachelor’s degrees: one in  Finance from New York University, and another in Biology from the University  of New Orleans. She earned her medical degree from Nova Southeastern  University and completed an Adult Psychiatry residency at LSU Health Sciences  Center in New Orleans. Dr. Cashman subsequently completed two fellowships:  the first in Child & Adolescent Psychiatry at LSU New Orleans, along with  a certification in Infant Mental Health (working with children ages 0–6 years  and their caregivers); the second fellowship was in Forensic Psychiatry at  the University of Rochester and the Rochester Regional Forensic Unit.    

‍

Treatment approach    

Dr. Cashman brings an extensive and specialized skillset to psychiatry,  informed by her triple board-certifications. Her treatment approach  integrates clinical expertise from adult, child and adolescent, and forensic  psychiatry, emphasizing accurate diagnosis, risk assessment, and  evidence-based care. With specialized expertise in forensic psychiatry and  competency assessments, she employs rigorous evaluation methods to accurately  inform treatment planning and risk management, particularly in complex or  legally-involved cases.    

‍

What you can expect in a first visit    

Patients visiting Dr. Cashman for the first time can expect a detailed and  comprehensive psychiatric evaluation. Given her forensic and clinical  experience, initial assessments are thorough, focusing on clear diagnostic  understanding, individualized risk assessment, and appropriate treatment  planning. Patients can anticipate a collaborative, professional, and  structured environment aimed at clarifying diagnoses and addressing their  unique mental health needs effectively.    

‍

Why Talkiatry?    

We’re a virtual mental health practice that makes it easy to find great  care. We combine quality and convenience to help you thrive—faster. Our  providers, like this one, are highly trained experts who specialize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Dr. Christopher DeBernard is a board-certified psychiatrist with extensive clinical leadership experience. He earned his MD and completed a combined residency in Internal Medicine and Psychiatry at Tulane University School of Medicine. Previously board certified in Internal Medicine, he is especially comfortable caring for patients with medical comorbidities. Dr. DeBernard has worked in both inpatient and outpatient settings and held leadership roles as Chief Medical Officer at Arisa Health and Lotic.ai. He also brings a systems-thinking perspective to clinical care from earlier careers in engineering and consulting. He holds active medical licenses in Louisiana and Arkansas.

Dr. DeBernard strives to create a warm, collaborative environment where patients feel respected, understood, and supported. His approach combines evidence-based medicine with an appreciation for each patient’s unique story, values, and motivations. Patients can expect open, direct communication, shared decision-making, and treatment plans that align with their personal goals. Trust, empathy, and authenticity form the foundation of his therapeutic relationships.

Dr. DeBernard begins by listening closely to each patient’s history, concerns, and hopes for treatment. Together, he works with patients to establish clear goals and develop individualized care plans that may include therapy, medication management, and lifestyle approaches. His focus is on both symptom relief and building long-term resilience, helping patients develop strategies that sustain well-being. Over time, he collaborates with patients to adapt treatment as their needs evolve, ensuring care remains effective and personalized.

Dr. Danielle Jackson is a board certified Adult Psychiatrist by the American Board of Psychiatry and Neurology. She is a graduate of Yale University's Psychiatry Residency and Howard University College of Medicine. Dr. Jackson's practice focuses on a combination of psychopharmacology (medication) and psychotherapy techniques including supportive therapy, motivational interviewing and cognitive behavioral therapy. She approaches care from an individualized, patient-centered, collaborative perspective. She often integrates evidence-based lifestyle recommendations in areas such as nutrition, sleep hygiene, exercise, and stress management tools in treatment to help patients achieve their wellness goals. Her interests include adjustment disorder, mood disorders, anxiety disorders, ADHD and trauma-related disorders. In addition, she enjoys helping patients navigate the challenges that can accompany changes in life (careers, parenthood, relationships, chronic illness). Prior to joining Talkiatry, Dr. Jackson served as medical director for substance use and co-occurring disorders at Sunset Terrace Family Health Centers at NYU Langone. She has experience caring for a diverse patient population including those with perinatal mood disorders (postpartum anxiety/depression), substance use disorders and those from minoritized and marginalized communities.

Dr. He is board-certified in adult psychiatry and addiction medicine. She is passionate about providing quality and accessible mental health care while considering each patient's concerns, values, and life circumstances. She received her medical doctorate degree from State University of New York (SUNY) Downstate Medical Center, and completed her psychiatry residency at George Washington University Hospital in DC. Prior to medical school, she completed a Master of Public Health from Yale School of Public Health. Dr. He has special clinical interests in providing trauma-informed and culturally competent care in the treatment of mental health conditions. She has experience working with special populations, such as minorities, immigrants, perinatal women, and LGBTQ+ communities. She holds a certificate from Harvard in Global Mental Health: Trauma and Recovery Program. She currently serves on the Board of Directors for a non-profit organization in Washington DC to prepare people recovering from mental illness to improve their quality of life. Although Dr. He's practice primarily focuses on medication management, she looks forward to getting to know you and incorporating her experiences with insight-oriented therapy in 20 or 30 minute follow-up visits.