Jonathan Hertz, MD

Dr. Tetyana Tarnavsky is a board-certified psychiatrist trained in Adult Psychiatry. She attended Dnipropetrovsk State Medical Academy in Ukraine where she received her M.D., M.S. and Ph.D. degrees in Psychiatry. Dr. Tarnavsky completed her residency at Harvard South Shore Psychiatry Residency Training Program in MA, where she was elected chief resident. Dr. Tarnavsky has an extensive research experience in Ukraine and the USA. She had studied computer addiction for her dissertation; had multiple abstracts and presentations; published several articles in peer-reviewed psychiatric journals as well as a book entitled Computer Addiction: Formation, Diagnosis, Correction and Prophylaxis. She has helped organize international conferences with the goal of improving access to and quality of healthcare in Dnipropetrovsk, Ukraine, and providing a national model for health care reform. Dr. Tarnavsky has worked with a variety of patients with diverse backgrounds in a Community Health Center and in the Partial Hospitalization Program as well as supervised medical students, psychiatry residents, and nurse practitioners. She has been a lecturer on psychiatry at Harvard Medical School and was involved in the training of psychiatry residents in the Harvard South Shore Psychiatry Training Program. Her primary focus has been on treating adults with depression, anxiety, post traumatic stress disorder, adjustment disorder, ADHD and other disorders. Dr. Tarnavsky strives to provide quality and compassionate treatment to individuals and their families.‍

Dr. Iris Guerrero Urena is double board-certified in psychiatry and consultation-liaison psychiatry. She received her medical degree from Universidad Iberoamericana in the Dominican Republic and went on to complete psychiatric residency at Lincoln Hospital in New York City. Dr. Guerrero then completed a consultation liaison fellowship at Morningside and West Mount Sinai Hospital in New York, further acquiring proficiency in caring for patients with complex medical and psychiatric comorbidities. After completing training, Dr. Guerrero worked in an acute inpatient unit and as a psychiatric consultant for patients admitted to medical units in Oregon. Dr. Guerrero Urena focuses on medication management while also implementing elements of supportive, dialectical behavioral, and cognitive behavioral therapy within each session to fully address individual needs. At times, Dr. Guerrero Urena may recommend a therapist for additional therapy. Dr. Guerrero Urena is experienced in treating a wide range of psychiatric conditions including depression, bipolar disorder, anxiety, PTSD, OCD.

Dr. Cheryl Person is the National Director of Clinical Quality at Talkiatry. She is board certified in general adult psychiatry and has been in practice for 20 years. Dr. Person focuses on medication management but believes that is only part of successful treatment. She will spend her time providing motivational interviewing or supportive therapy, and believes it is often critical to have a therapist as part of the treatment team. Dr. Person received her medical degree from Tulane University School of Medicine. She completed her psychiatric residency at Johns Hopkins and a psychiatric epidemiology fellowship at Johns Hopkins Bloomberg School of Public Health with a focus on disaster mental health. After relocating to Texas in 2010, she worked as Director of Psychiatric Services of a large safety-net hospital in Houston. Prior to Talkiatry, she most recently was the executive director/chief physician of a large university student health center and campus pharmacy. In addition to adult psychiatry, Dr. Person has worked extensively with victims of acute trauma and her primary focus is on working with patients who have anxiety and mood disorders.

Dr. Kamyl Bogan, a board-certified psychiatrist, attended Vanderbilt University for her undergraduate education and earned her medical degree from the Quillen College of Medicine. She completed her psychiatry residency and community fellowship at the University of Florida College of Medicine – Jacksonville. Dr. Bogan was inducted into the Gold Humanism Honor Society in recognition of her compassionate care and was selected as an APA SAMHSA Fellow, where she designed a conference focused on resources for individuals with substance use disorders.

Dr. Bogan strives to create a welcoming and supportive environment for her patients. She listens with empathy and compassion, ensuring that every individual feels heard and safe throughout their care. She is dedicated to practicing with cultural humility and responsiveness, using evidence-based approaches to meet the diverse needs of those she serves.

In initial appointments, Dr. Bogan takes time to explore each patient’s history, primary concerns, and symptoms. Together, they establish treatment goals and collaborate on a personalized plan that may include medication management, therapy, or a combination of both to promote meaningful and sustainable improvement.

Dr. Kahlon is an experienced Psychiatrist who spent the last 24 years of his career working in Veterans Affairs, where he was able to treat a wide variety of patients. Dr. Kahlon provides medication management along with supportive therapy. In some cases Dr. Kahlon may refer you to a counselor or therapist for further care and collaboration. He has experience treating a wide range of conditions, including major depressive disorder, panic disorder, generalized anxiety disorder, obsessive-compulsive disorder, and PTSD. Dr. Kahlon utilizes a well-rounded approach to treat the whole person, through medication, active listening, and recommending talk-centered counseling programs. Dr. Kahlon was trained in the VA system associated with Chicago Medical School (Finch University), which is located in North Chicago, Illinois. At the conclusion of his training, he was hired at the VA in Danville, Illinois until 2021. He also had a part-time private practice, which enhanced his experience in adult psychiatry. Dr. Kahlon graduated from a prestigious medical school that has consistently held a high position (4th) among the top 100 medical schools in the world.‍

Dr. Debrey is board-certified in adult psychiatry. Her approach is client-centered, individualized, and collaborative. She focuses on building a strong therapeutic alliance with each client to work towards achieving enhanced functioning and meaning in their lives. She works with individuals experiencing a wide range of mental health concerns, including depression and other mood concerns, bipolar spectrum illnesses, OCD, PTSD, anxiety disorders, and substance use disorders. Though she specializes in medication management, she believes in an integrative and comprehensive treatment program that incorporates multiple aspects of an individual's health and wellness. Along with discussing physical health concerns, diet, exercise, personal connection, and stress management, she incorporates various therapeutic modalities, including CBT, DBT, ACT, and mindfulness, into her work. In some instances, Dr. Debrey may recommend more intensive psychotherapy with a collaborating therapist in order to help facilitate the best care possible. Dr. Debrey received her medical degree from Rush Medical College. She also holds a graduate degree in epidemiology from the Johns Hopkins Bloomberg School of Public Health. Following medical school, she completed her residency in psychiatry at Emory University School of Medicine. During her final year of residency, she served as chief resident at Grady Memorial Hospital. Prior to joining Talkiatry, Dr. Debrey was an assistant professor at Emory University Department of Psychiatry, where she worked as an attending psychiatrist at Grady Behavioral Health. While at Grady, Dr. Debrey worked primarily as a community psychiatrist with a focus on working with individuals experiencing psychosis. She also frequently worked on the inpatient psychiatry service at Grady. As an Emory faculty member, teaching and mentorship were an especially meaningful part of her work.‍