Austin Lin, MD

Dr. John Hendrick is a practicing psychiatrist who has recently served as medical director for clinical services at Erlanger Behavioral Health Hospital in Chattanooga, TN. After several years of private practice, he had served as Chief of Inpatient Psychiatric Services and then as Chief of Psychiatry at Mountain Home VA Medical Center. During his time at Mountain Home VA he was also a Professor of Psychiatry at Quillen Medical School at East Tennessee State University where he taught General Psychiatry courses and the Neurosciences of Psychiatry. His specialties include affective and anxiety disorders and he has specific expertise in neuropsychiatry, psychopharmacology and alternative treatments for affective disorders. He is a Distinguished Life Fellow of the American Psychiatric Association and is a Past President of both the Tennessee Psychiatric Association and the Southern Psychiatric Association. He has been awarded a Distinguished Service Award from the United States Public Health Service. He has been twice named the Outstanding Teacher Award from the ETSU Psychiatry Residency program and was awarded Course Director of the year for the Neurosciences residency course he developed. He holds an Irma J. Bland Award for Excellence in Psychiatric Education from the APA. He has an extensive psychiatric background in practice and as a teacher. He practices psychotherapy from an Eriksonian perspective and is well versed in individual and psychodynamic psychotherapies.

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. Meyen graduated from the University of Missouri School of Medicine and completed her psychiatry residency training at Harvard South Shore. She completed a fellowship in geriatric psychiatry through Massachusetts General Hospital in Boston, MA. Dr. Meyen was employed by the Department of Veteran Affairs for 10 years prior to joining Talkiatry. She is board certified in both adult and geriatric psychiatry. She specializes in depression, anxiety, PTSD, bipolar disorder, OCD, ADHD, and many other mental health disorders.

Dr. Meyen is a Harvard trained, board certified, adult psychiatrist who specializes in creating individually tailored treatment plans for patients using high quality evidence and up-to-date clinical guidelines. She has a passion for shared decision making, which means empathetic listening to each patient, and making a customized plan that supports their individual values and preferences.  

When meeting with a patient for the first time, Dr. Meyen carefully reviews current symptoms, past history, patient values/preferences. She works with the patient to develop individual treatment goals. Dr. Meyen values developing a trusting relationship with each patient and wants each patient to feel heard and valued.

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Dr. Peter Hsieh has experience practicing in both outpatient and inpatient psychiatric settings. He earned his medical degree from the Zucker School of Medicine at Hofstra/Northwell and completed his psychiatry residency at Zucker SOM at Mather Hospital.

Dr. Hsieh values patient education and shared decision-making. He fosters a nonjudgmental environment where patients feel heard and supported, working collaboratively to develop a treatment plan that fits their goals and needs.

Dr. Hsieh begins with a comprehensive psychiatric evaluation and partners with each patient to create an individualized treatment plan that aligns with their values and evidence-based care. His approach often combines medication management with psychotherapeutic modalities.

Dr. Arjun Kaverimanian is an adult psychiatrist with a clinical approach emphasizing the intersection of medication-based treatment and talk therapy. He earned his medical degree from Saint Louis University School of Medicine, after which he completed his psychiatry residency training at Loyola University Medical Center. During his training, he gained experience across a wide range of mental health settings, including community mental health centers and the Department of Veterans Affairs, and worked at various levels of care—from inpatient units to partial hospitalization and intensive outpatient programs, as well as outpatient clinics.

Dr. Kaverimanian has cultivated a robust skill set in psychotherapy techniques—including psychodynamic therapy, Acceptance and Commitment Therapy, Cognitive Behavioral Therapy, supportive therapy, and mindfulness-based approaches—which he integrates alongside evidence-based medication management.

Dr. Kaverimanian is committed to understanding each patient as a whole, taking into account the interplay of psychological, social, and biological factors that shape a person's mental health. He has particular areas of interest in the treatment of depression, anxiety, and post-traumatic stress disorder.

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Background and credentials

Dr. Matthew Koller is a board-certified adult psychiatrist who completed his undergraduate training at The University of Texas at Austin. He earned his medical degree from The University of Texas Health Science Center at San Antonio and completed his general adult psychiatry residency at Baylor College of Medicine in Houston, TX, where he served as Chief Resident of Education in his final year of training.

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Treatment approach

Dr. Koller believes that understanding a patient fully is essential before treatment begins, emphasizing a collaborative and patient-centered approach to care. His practice is primarily focused on medication management, but he also incorporates supportive therapy and other therapeutic modalities as needed. He may recommend including a therapist in the treatment plan to ensure comprehensive, well-rounded care. He has experience treating a wide range of mental health conditions, including depression, anxiety, insomnia, personality disorders, bipolar disorder, PTSD, and psychotic disorders.

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What you can expect in a first visit

During the first visit, patients can expect a thorough and individualized psychiatric evaluation, where Dr. Koller takes the time to understand their symptoms, history, and treatment goals. He prioritizes open communication and shared decision-making, working closely with patients to develop personalized treatment plans. While medication management is the foundation of his approach, he remains flexible and adaptive, incorporating therapy and other interventions as needed to help patients achieve optimal mental health.

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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.

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