Caitlin Tillberg, MD

Background and credentials

Dr. Kristina Schnitzer is a board-certified psychiatrist. She earned her medical degree from the New York University School of Medicine and completed her residency in Adult Psychiatry at the Massachusetts General Hospital/McLean Adult Psychiatry Residency Program. She further specialized by completing a one-year clinical and research fellowship in Public and Community Psychiatry through Massachusetts General Hospital and the Massachusetts Department of Mental Health. In addition to her medical training, she holds a Master of Public Health (MPH) from the Harvard T.H. Chan School of Public Health. She has over three years of experience practicing psychiatry across inpatient, emergency, and outpatient settings.

‍

Treatment approach

Dr. Schnitzer focuses on medication management as the foundation of her treatment approach, typically combining it with supportive or emotionally focused therapy during 30-minute follow-up visits. She takes a collaborative and individualized approach to patient care and, when needed, may recommend additional therapy by integrating a therapist into the care team to ensure the best possible outcomes. She has experience treating a broad range of psychiatric disorders in various clinical settings.

‍

What you can expect in a first visit

Patients can expect a thorough and structured evaluation in their first visit, where Dr. Schnitzer carefully assesses their symptoms, medical history, and treatment goals. She emphasizes open communication and collaboration, ensuring that patients are fully involved in shaping their treatment plans. Follow-up visits typically last 30 minutes, during which she monitors progress, adjusts treatment as needed, and may recommend additional therapeutic support for comprehensive care.

‍

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. Zeshen Wu is an ABPN board certified psychiatrist with more than 10 years of experience. He completed his undergraduate studies at the University of Texas at Austin, followed by medical school at the University of Texas Medical Branch. He completed residency in psychiatry at Dell Medical School in Austin. Dr. Wu focuses on effective and safe medication management as well as supportive and psychodynamic therapy in his practice. He likes to focus on a gentle, collaborative, and patient-centered approach. He specializes in forming individualized pharmacological treatments as well as taking time to explore stressors and psychological issues to achieve complete and comprehensive care. Dr. Wu had previously served as assistant professor of psychiatry at UTHealth McGovern Medical School in Houston and has been involved in many years of teaching and mentorship. At UTHealth, he also served as clinical faculty in one of the nation's largest inpatient psychiatric campuses and is experienced in treating a wide range of adult mental illnesses including mood disorders, anxiety, OCD, and ADHD.

Dr. Natalie Cummings is a board-certified adult psychiatrist, and board-eligible geriatric psychiatrist. She obtained her medical degree from the University of North Carolina at Chapel Hill, and completed her residency training in psychiatry at the University of Miami Miller School of Medicine and Jackson Memorial Hospital. She then went on to complete her geriatric psychiatry fellowship at Icahn School of Medicine at Mount Sinai Beth Israel. During her fellowship, Dr. Cummings participated in Mount Sinai's Visiting Doctors Program, providing patient-centered and compassionate care to homebound elder adults in New York City. She also received training at Coler Rehabilitation and Nursing Care Center on Roosevelt Island during her fellowship, and presented at the American Association for Geriatric Psychiatry annual meeting. During her training, Dr. Cummings gained extensive experience providing psychiatric care to various patient populations in multiple patient care settings, including in the outpatient clinic, inpatient unit, and emergency department. Following her training, Dr. Cummings worked at New York Presbyterian's Gracie Square Hospital, serving first in the position of float psychiatrist, providing care to patients on every inpatient psychiatric unit (including the young adult/college student program, Orthodox Jewish program, psychotic disorders program, crisis-stabilization program, dual focus program, and Asian Psychiatry program), before transitioning to an established psychiatric attending for the older adult program. During her time at Gracie Square Hospital, Dr. Cummings received the Physician of the Year Award, and served as a Clinical Assistant Professor of Psychiatry at Weill Cornell Medicine. She worked closely alongside staff psychologist, social workers and nurses to provide multidisciplinary, collaborative care to patients suffering from a variety of mental health conditions. Dr. Cummings primarily focuses on medication management and supportive psychotherapy, but has extensive training in utilizing various therapy modalities, including cognitive behavioral therapy, interpersonal therapy, reminiscence therapy, and psychodynamic psychotherapy. When appropriate, Dr. Cummings will refer for more extensive psychotherapy and/or collaborate with your established psychotherapist for comprehensive care. Dr. Cummings strongly believes that addressing psychosocial and interpersonal factors (including relationship health, economic stressors, social isolation and loneliness) is as essential as pharmacologic management in treating mental health conditions. She has particular experience and interest in treating older adults and those suffering from memory disorders, but provides treatment for a variety of psychiatric conditions including depression, anxiety, bipolar disorder, obsessive-compulsive disorders, trauma-related disorders and substance use disorders. Dr. Cummings is a member of the American Psychiatric Association and American Association for Geriatric Psychiatry.

Dr. Ritchie is trained in both adult and child & adolescent psychiatry, with a focus on the diagnosis and treatment of depressive disorders, anxiety disorders, trauma- and stressor-related disorders, and ADHD.  He received his bachelor's degree in biology with a minor in French, from The University of Central Florida. Dr. Ritchie completed medical school at Campbell University School of Osteopathic Medicine. Following medical school, he completed General psychiatry residency and Child and Adolescent Psychiatry Fellowship at Texas Tech University Health Sciences Center. His professional experiences include working in inpatient psychiatric hospitals, consult-liaison psychiatry, outpatient clinics, intensive outpatient programs (IOP), partial hospitalization programs (PHP), and emergency rooms. This broad range of experience allows him to provide comprehensive, individualized care to patients at all stages of life.

Dr. Ritchie emphasizes a holistic approach, combining medication management and psychotherapy. He utilizes principles from Cognitive Behavioral Therapy (CBT), Acceptance and Commitment Therapy (ACT), and supportive psychotherapy This method is supported by research indicating improved patient outcomes.

Patients can anticipate a thorough initial evaluation during their first visit with Dr. Ritchie. He conducts a comprehensive assessment to understand the patient's symptoms, history, and personal circumstances. This session sets the foundation for collaboratively developing an individualized treatment plan focused on the patient's specific needs and goals.

‍

Dr. Amada holds the position of staff psychiatrist at Talkiatry. She was born and raised in Queens, NY. She completed her undergraduate education at New York University, followed by medical school at SUNY Downstate College of Medicine in Brooklyn, NY. She went on to complete her psychiatry residency at Stony Brook University Hospital, where she received an award for academic achievement. Dr. Amada believes in a holistic approach to mental health that addresses lifestyle factors alongside medication management. She values the importance of both therapy and medication in treating mental illness.

Dr. Amada takes a collaborative approach to care and strives to involve her patients in every step of the treatment process. She believes in creating a safe, supportive, and nonjudgmental space where patients can openly discuss their concerns. While her focus is on medication management, she often recommends incorporating additional therapy into the treatment plan and may ask that patients work with a therapist to help achieve the best outcomes.

Dr. Amada works closely with her patients to develop personalized treatment plans. She believes in open communication, shared decision-making, and taking into account the whole person when addressing mental health concerns. Her goal is to ensure that patients feel heard, supported, and actively engaged in their care.

‍

Dr. Sophia Monsour holds the position of Chief Psychiatrist for Pennsylvania at Talkiatry. After completing residency in 2013 at Albany Medical Center, she has spent the past 9 years fulfilling her passion for integrated and specialty care for adults suffering from mental illness. Her years of experience have included working as an integrated care Psychiatrist at a community health center, a medical director of a Partial Hospital and Intensive Outpatient Program (PHP/IOP), and also working for an Assertive Community Treatment Team (ACT) specializing in the Serious Mentally Ill (SMI) population. Most recently, she has been serving our veterans as the Outpatient Section Chief, Primary/Mental Health Integration Medical Director and Resident/Medical Student Coordinator at VA Pittsburgh. Dr. Monsour has an approachable style when treating individuals who suffer from various diagnoses, especially those with prior trauma. She provides supportive psychotherapy and at times uses psychodynamic therapy skills to address her patient's current stressors and to identify the root cause of their ailment. She believes in a holistic approach and utilizes mindfulness as a technique along with medication management.