Mark Sundahl, MD

Severine Dondina, PMHNP-BC, is a board-certified psychiatric nurse practitioner with licensure in Washington and Florida. She holds a Master of Science in Nursing from the University of Alabama at Birmingham and graduated summa cum laude with dual bachelor’s degrees in nursing and biomedical science. Her background spans outpatient, community, forensic, and crisis psychiatry, including leadership roles with Florida’s Assertive Community Treatment (FACT) and Multi-Disciplinary Forensic Teams.

Currently serving patients in Washington, Severine treats adults with ADHD, anxiety, depression, PTSD, and bipolar disorder. She brings a trauma-informed, strengths-based approach to care and is deeply committed to creating affirming spaces for LGBTQ+ and gender-diverse individuals. Her clinical style combines evidence-based medication management with warm, collaborative support.

Trilingual in English, French, and Spanish, Severine is known for her cultural sensitivity, clinical rigor, and authentic presence. She approaches each patient with curiosity, humility, and respect—believing healing begins with connection.

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Dr. Clark is a board-certified adult psychiatrist. She is fellowship-trained in Child and Adolescent Psychiatry and has been in practice for 11 years. She received her medical degree from the Medical University of South Carolina. Dr. Clark then completed her residency training and continued her training in child and adolescent fellowship at the Medical College of Georgia. Dr. Clark works with patients to create an environment where they feel comfortable and supported. She focuses on medication management along with supportive therapy. Normally visits are 30-minute follow-ups that allow time to focus on areas of support needed. If additional therapy is recommended, she will request a therapist be added to your care team to meet all your needs. Dr. Clark has worked in both inpatient and outpatient settings with adult, child, and adolescent populations. She has worked in private practice as well as community mental health, where she worked with reaching under-served communities. Dr Clark has a passion for treating both adult and child and adolescent patients with anxiety and depression.

Dr. Green (she/her) holds the position of staff psychiatrist at Talkiatry. She is board-certified in adult psychiatry. She has extensive experience in various settings including inpatient, outpatient, consult-liaison, emergency, Veteran, and community-based environments. She is licensed in the states of Maryland, New York, and Virginia. Dr. Green's practice focuses on the integration of medication management and psychotherapy. Her practice style is collaborative to establish trust and build rapport while meeting patient-specific goals. Dr. Green approaches patient care from a holistic perspective that is individualized, evidence-based, and patient-centered. She received her medical degree from the New York Institute of Technology's College of Osteopathic Medicine on Long Island, NY. Her adult residency training was completed at Virginia Commonwealth University (VCU) in Richmond, VA. In addition to general, adult psychiatry, Dr. Green is clinically experienced and interested in treating patients of a wide variety. She is particularly interested in treating patients with mood disorders, anxiety disorders, obsessive compulsive disorder, eating disorders, trauma-related disorders, and personality disorders. Dr. Green enjoys exploring with patients a holistic approach to mental health treatment, which includes a discussion of interpersonal relationships, lifestyle behaviors (exercise, diet, sleep), and self-compassion. ‍**Dr. Green's current practice does not include the use of any controlled substance medication, such as stimulants or benzodiazepines.

Dr. Krishna Divadeenam is a staff psychiatrist at Talkiatry. He trained in New York and earned his medical degree from Albany Medical College in 1997.  He finished his internship at Vanderbilt Medical Center and completed his psychiatric residency at the University of Kansas Medical Center in 2000. During his residency, he served as Chief Resident at the Kansas City VA Medical Center (KCVA).  His initial post-residency focus was with patients with serious and persistent mental illness (SPMI) when he worked at the Johnson County Mental Health Center.  He has served as a adjunct professor at the University of Kansas providing clinical supervision to residents and yearly lectures on Bipolar disorder, Tourette’s and Obsessive compulsive disorder for over 20 years.  He worked at Midwest Psychiatric associates in an outpatient private practice for nearly 3 years before returning to the KCVA.  There he oversaw care for combat veterans as a clinical psychiatrist and the supervisor for the PTSD Specialty outpatient clinic.  After 5 years he transitioned to the inpatient unit as the inpatient supervisor and one of the attending physicians of the acute inpatient psychiatric unit.  In addition, he served as the University of Kansas Site director for their psychiatric residency program.  

Dr. Divadeenam believes in a holistic approach to mental health treatment, integrating medication management, supportive psychotherapy, and collaboration with therapists and support staff. He tailors treatment to each patient's unique needs, ensuring a comprehensive and individualized approach to care. His expertise includes treating a variety of psychiatric diagnoses, such as mood disorders, anxiety disorders (including OCD), ADHD, and PTSD.

In a first visit, patients can expect a thorough evaluation, where Dr. Divadeenam takes the time to understand their medical history, symptoms, and treatment goals. He emphasizes open communication and collaborative decision-making, ensuring that patients feel heard and supported. Based on this initial assessment, he will develop a personalized treatment plan, which may include medication management and referrals to therapy or other supportive services as needed.

Dr. Triston Wong is a board-certified adult psychiatrist who emphasizes a collaborative approach and strong therapeutic alliance in the treatment of psychiatric conditions. Though his practice focuses on medication management, Dr. Wong advocates for a holistic approach to treatment. He may incorporate elements of various psychotherapies, including supportive, cognitive-behavioral (CBT), and insight-oriented therapy. At times, Dr. Wong may believe that additional therapy is needed for the best outcome and recommend that you bring a dedicated therapist into your care team. Dr. Wong completed his undergraduate studies at Tulane University. He received his medical degree from Louisiana State University New Orleans School of Medicine, then completed his residency training in general psychiatry at Thomas Jefferson University Hospital in Philadelphia, PA. Dr. Wong has experience working with patients of widely varying backgrounds and socioeconomic statuses. He works primarily with adult patients struggling with depression, anxiety, trauma, and grief. ‍

Dr. Anthony Finch is a graduate of the New York-Presbyterian Hospital/Weill Cornell Medical Center General Psychiatry residency and the Duke University Geriatric Psychiatry fellowship programs; he is board certified in Psychiatry by the ABPN. Dr. Finch was born and raised in New York and now lives in North Carolina. Dr. Finch specializes both in psychiatric medication management and various forms of psychotherapy. He believes that effective psychiatric treatment requires attention to multiple domains, including the establishment of a strong doctor/patient relationship, the development of a sound understanding of who the patient is as an individual, and a comprehensive assessment of spiritual and biological factors contributing to mental health. As such, Dr. Finch's practice includes both pharmacological and psychotherapeutic interventions that aim to treat the whole person on an individualized basis. He sees patients of all ages, specializing in older adults, and treats all psychiatric conditions. Dr. Finch received the 2023 Distinguished House Staff Award from the New York Weill Cornell Medical Center Alumni Council; this is awarded to one graduating house staff member from each department annually for excellence during training. He has conducted research on depression and PTSD, published a number of papers in peer-reviewed journals, presented posters at conferences, and written a chapter for a book on medical education. He practices in both English and German.