Sarah Mennella, MD

Dr. Macdonnell is a double-boarded psychiatrist with over 25 years of experience in adult psychiatry and geriatric psychiatry. Dr. Macdonnell focuses on treating individuals with medication management. Supportive and interpersonal therapy is incorporated as needed. When additional therapy or longer sessions are necessary to enhance the individual's treatment, she invites a therapist to become a member of your care team. Dr. Macdonnell attended undergraduate school at Manhattan School of Music earning a bachelor's and master's degree in violin performance and musicology. She then attended the City University of New York � Hunter College campus majoring in premedical sciences. Dr. Macdonnell attended Albert Einstein College of Medicine in the Bronx, New York, earning a degree in MD. She completed an internship in internal medicine before entering psychiatry residency at New York-Presbyterian Hospital � Westchester Division. After completing her residency, she stayed for an additional year, completing a fellowship in geriatric psychiatry. She was promoted to Attending Psychiatrist and Unit Chief of the Geriatric Partial Hospital Program. After two years in academic psychiatry, she entered private practice in New York and Connecticut for 8 years. She then served 2 years in the National Health Service providing outpatient care to an underserved area in central Florida. Moving to Georgia, she has worked in private practice and academic psychiatry at Mercer University College of Medicine before moving on to Veterans' care at Atlanta VA and Carl Vinson VA Medical Center. While Dr. Macdonnell has a wide range of experience, she focuses on general adult psychiatry.

Michelle Hamilton is a Board-Certified Psychiatric Mental Health Nurse Practitioner with a special interest in the care of adults with mood disorders, anxiety disorders, and PTSD. She earned her Master of Science Degree from The Ohio State University and her Bachelor’s Degree in Nursing from The Oregon Health & Science University in Portland, Oregon. Her background includes both inpatient and outpatient psychiatry, crisis stabilization, and Consult-Liaison Psychiatry. Michelle has a passion for incorporating a holistic, evidenced-based approach to improve the mental health needs of each individual client through medication and therapy while emphasizing practical lifestyle changes such as the incorporation of exercise, healthy nutrition, and stress management techniques.

Dr. Erica Mark is a board-certified psychiatrist with experience in both inpatient and outpatient care. She formerly served as a Staff Psychiatrist at a VA Medical Center, where she specialized in the mental health needs of veterans. Dr. Mark earned her B.S. in Biological Sciences, Summa Cum Laude, from Hampton University, received her MD from the University of Texas Medical Branch, and completed her psychiatry residency at Tulane University School of Medicine, serving as Chief Resident in 2017.

Dr. Mark fosters a warm, supportive environment where patients feel heard and respected. She values open communication and works collaboratively to set clear, personalized treatment goals. Deeply committed to service, she has supported underserved and marginalized communities through various nonprofit initiatives.

During initial sessions, Dr. Mark takes time to understand each patient’s history, concerns, and goals. She then creates individualized treatment plans aligned with each patient's unique needs and preferences. Dr. Mark encourages ongoing dialogue to adapt care plans and support long-term progress.

Dr. Saisha Jackson is a board-certified psychiatrist in Adult Psychiatry. She completed her undergraduate training at Hampton University followed by medical school at Michigan State University College of Human Medicine. She has completed a Residency in Psychiatry at Howard University.

She has a genuine interest in treating a vast array of psychiatric disorders including depression, anxiety, bipolar disorders, post-traumatic stress disorders and obsessive compulsive and related disorders. She specializes in psychopharmacology. Her practice focuses on medication management, and typically offers this in conjunction with supportive therapy in 30-minute follow-up visits.

Dr. Abdali is a double board-certified psychiatrist in general adult psychiatry and addiction psychiatry. Dr. Abdali has practiced for over 5 years in a variety of settings including outpatient clinics, inpatient hospitals, emergency rooms, and residential treatment centers.

Dr. Abdali has experience treating depressive disorders, anxiety disorders, ADHD, bipolar disorders, PTSD,  substance use disorders and others. Most recently, Dr. Abdali worked in the VA system, treating veterans utilizing both medication management and psychotherapy.

Dr. Abdali prioritizes shared decision making with his patients in order to facilitate practical treatment plans. During clinical visits, Dr. Abdali combines medication management as well as various therapy modalities including supportive psychotherapy, cognitive behavioral therapy, and motivational interviewing.

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Dr. Sumbal Akhter graduated from the University of Nevada at Las Vegas Psychiatry residency program. She has a wide range of experience, having worked at the VA, consult liaison psychiatry, and multiple inpatient/outpatient settings. She provides supportive psychotherapy and takes an integrative approach to her practice.