Alexander Van-Den-Ende, DO

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. 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. Zeynep Altun is board-certified in Psychiatry and holds a Ph.D. in Neuroscience. Dr. Altun graduated cum laude from Istanbul University, Istanbul Medical School. She completed her residency training in Neurology and is Turkish board-certified in clinical Neurology. Subsequently, she moved to the U.S. and finished her Ph.D. in cellular Neuroscience at Cornell University Graduate School of Medical Sciences. Dr. Altun completed her psychiatry residency training at Albert Einstein College of Medicine, Department of Psychiatry and after, her clinical fellowship in Comprehensive Psychiatric Emergency Program at Columbia University Medical College, New York Presbyterian Hospital. Dr. Altun has practiced in various settings including Bellevue Hospital, New York Presbyterian Hospital, Columbia Doctors Faculty Practice Office, Mount Sinai West and Mount Sinai Morningside Hospitals. Dr. Altun has held various academic appointments at New York University School of Medicine Department of Psychiatry; New York Presbyterian Hospital-Columbia University Medical College Department of Psychiatry; New York State Psychiatric Institute and Mount Sinai School of Medicine Department of Psychiatry. She spent most of her professional career supervising and teaching medical students, psychiatry residents and nurse practitioners. As an adult psychiatrist, Dr. Altun has extensive theoretical knowledge of the nervous system and its disorders and more than 10 years of experience in treating various mental illnesses including mood disorders, anxiety disorders, psychotic disorders, autism-spectrum and neuropsychiatric disorders, psychiatric emergencies and crisis management as well as cognitive behavioral and supportive psychotherapy. In Columbia Doctors, she collaborated closely with the Lieber Recovery Clinic, treating young adults with various mental illnesses. The philosophy of her practice is to collaborate with patients and work together with them so that they can lead symptom-free, productive, and stable lives.

Background and credentials  

Dr. Alexandra Baluna, MD, is board-certified by the American Board of  Psychiatry and Neurology. She received her medical degree from  LSUHC-Shreveport and completed her psychiatry residency training at  Montefiore/Albert-Einstein College of Medicine, where she served as chief of  the Consultation-Liaison (C/L) service. Following residency, Dr. Baluna  served as Senior Chief, during which she was honored with the Leo M. Davidoff  Award for Outstanding Achievement in the Teaching of Medical Students. Her  professional experiences include roles at Fordham University, Albert Einstein  Student Mental Health Counseling Center, and most recently, as an outpatient  psychiatrist at Maimonides Medical Center, where she enjoyed teaching and  supervising residents.  

Treatment approach  

Dr. Baluna emphasizes creating a warm, empathic, and nonjudgmental  therapeutic environment. She collaborates closely with patients to develop  personalized treatment plans that consider cultural, biological,  psychological, and social factors. With a strong interest in psychotherapy,  she frequently employs ego-supportive and insight-oriented therapy techniques  during follow-up sessions.  

What you can expect in a first visit    

During an initial visit, patients can expect a welcoming and supportive  atmosphere where Dr. Baluna conducts a comprehensive assessment. This  involves exploring the patient's history, current challenges, and individual  circumstances. The goal of the first session is to collaboratively build an  individualized treatment plan tailored specifically to the patient's unique  needs.  

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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 speciualize in  medication management and collaborate with you on a treatment plan that fits  your needs and comfort level.

Dr. Breaunnah Bloomer Jackson is a board-certified Child & Adolescent Psychiatrist who earned her undergraduate degree from Howard University and a master’s in biological sciences from Mississippi College. She completed medical school at LSU Health Sciences Center – Shreveport, followed by a general psychiatry residency and child & adolescent psychiatry fellowship at LSU Health Sciences Center – New Orleans, where she served as Chief Fellow.

Dr. Breaunnah Bloomer Jackson creates a welcoming, supportive space for children, adolescents, and their families. She takes a compassionate and collaborative approach to care, focusing on medication management while integrating supportive therapy, brief cognitive techniques, parent guidance, psychoeducation, and motivational strategies. When ongoing therapy is needed, she works closely with therapists to ensure connected, comprehensive care.

She is passionate about meeting young people where they are, honoring their individuality, and working with families to navigate challenges together. With a strong foundation in human development and a deep commitment to equity, Dr. Bloomer Jackson is building a practice that supports the whole person—and every story.

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Raquel Weinum is a licensed clinical social worker. Her career in the field has spanned over 20 years and includes work with adults, adolescents, and children from diverse populations and experiences. She has treated a wide range of symptoms and challenges, including but not limited to, depression and other mood disorders, anxiety, chronic stress, trauma, difficulty with relationships, family conflicts, and loss. ‍Her style is warm and engaging. She considers the role of the therapist to be collaborative. As a therapist she aims to create a safe non-judgmental space for self-exploration, discovery, and healing. The goals in the therapeutic process may involve developing new skills to cope with emotional pain, learning to set new boundaries in relationships, or finding more meaning in life. She utilizes a wide range of approaches, including cognitive behavioral therapy, motivational interviewing, narrative therapy, relational and psychodynamic approaches, and mindfulness and embodiment work. Regardless of the modality, her work is always trauma informed and strength-based. ‍Ms. Weinum received her Master's degree in Social Work from Fordham University and her BS in psychology from Brooklyn College. She has worked in varied settings including hospitals, community mental health/substance abuse clinics, and home-based crisis intervention services. She has provided individual and group psychotherapy, and has served in supervisory/administrative roles throughout her career.‍