Susannah Williams, MD

Dr. Mo Basith is a board-certified psychiatrist in the field of general adult psychiatry. He offers a mix of pharmacotherapy in conjunction with psychotherapy in 30-minute sessions. Dr. Basith's approach to clinical practice is rooted in fostering a safe atmosphere in which to explore biological and psychosocial factors that affect mental health. He views medication as a tool that patients can use while also engaging in psychotherapy and making lifestyle changes to optimize their mental health. He encourages patients to be actively involved in their healthcare decisions. Although he has an integrative psychotherapy style, Dr. Basith may occasionally believe additional therapy is needed and ask that you bring a therapist into your care team to provide the best outcome. Dr. Basith received his medical degree at Jefferson Medical College in Philadelphia, Pennsylvania. He then went on to complete a general psychiatry residency training at Penn State College of Medicine in Hershey, Pennsylvania. Since completing his training, Dr. Basith has been working with a wide variety of adults, including as a staff psychiatrist at Georgetown University's Counseling and Psychiatric Service. He has experience treating patients with a wide range of psychiatric concerns including various anxiety disorders, depression, bipolar spectrum disorders, obsessive-compulsive disorder, and substance use disorders. Dr. Basith utilizes pharmacotherapy along with facets of cognitive behavioral therapy, psychodynamic psychotherapy, and supportive therapy as needed.

Margaret Ngumi, MSN, APRN, FNP-C, PMHNP-BC, is a dual board-certified Psychiatric Mental Health and Family Nurse Practitioner with over 20 years of experience in healthcare. She began her career as a Family Nurse Practitioner and later pursued a post-master’s certification in psychiatry to address the growing need for accessible mental health services. Margaret has extensive experience in both inpatient and outpatient settings, treating conditions such as depression, anxiety, PTSD, mood disorders, and substance use disorders.

She takes a collaborative, patient-centered approach to care, creating a safe and supportive environment where individuals feel heard and empowered. With a strong emphasis on holistic care, Margaret considers all aspects of a patient’s well-being—including lifestyle, relationships, and overall health. Whether through medication management, therapy, or lifestyle modifications, she is committed to helping patients achieve meaningful and lasting improvements in their mental health.

Margaret begins with a comprehensive psychiatric evaluation to understand each patient’s history, concerns, and goals. She then works closely with them to develop a personalized care plan that may include medication, therapy, and evidence-based lifestyle interventions. She prioritizes open communication, patient education, and ongoing collaboration to ensure treatment remains effective and evolves with each patient’s needs. Through her compassionate and evidence-based approach, Margaret is dedicated to helping individuals find balance and improve their overall quality of life.

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Dr. Siera Kirkland is an adult general psychiatrist. She is a diplomate of the American Board of Psychiatry and Neurology. She has been practicing for 8 years. Dr. Kirkland focuses on collaborative and evidence-based care. She believes it is imperative to form a therapeutic relationship with each individual and work together as a team to formulate the best treatment plan. Her passion is to educate, empower, and support. She specializes in medication management and brief psychotherapy .Dr. Kirkland received her medical degree from Ross University School of Medicine. She completed her residency at The Cleveland Clinic Akron General and Summa HealthSystem in her hometown of Akron, OH. Upon completion of residency, she relocated to Charlotte, NC to start her career as the Lead Psychiatrist at Novant Health Psychiatric Associates- Matthews. Dr. Kirkland has experience in treating various patient populations. Her areas of focus have been perinatal and postpartum depression and anxiety. She has also worked with adults with co-occurring substance use disorders. Special interests include women's health and minority mental health disparities.‍For established patients of Dr. Kirkland, call 917-634-5311 to schedule an appointment and let the care coordinator know you are an established patient.

Dr. Coy Bolton was born and raised in South Texas, and was a teacher before becoming a physician. He completed medical school training and residency at Texas Tech Health Sciences Center in Lubbock, TX. Dr. Bolton has wanted to be a Psychiatrist for as long as he could remember. He will do his best to thoroughly and carefully work with his patients to determine the most accurate Psychiatric diagnosis/diagnoses possible.

While working together, Dr. Bolton may ask sensitive questions, but will do so in a nonjudgmental way with the only goal of helping his patients. He will also work in psychotherapy techniques during the sessions together. Dr. Bolton takes a holistic approach when working with patients, that focuses on multiple aspects of their lives.

Dr. Bolton prides himself on creating a safe and nonjudgmental space where the focus is simply on helping patients. He strives to work collaboratively with his patients, to ensure that he and the patient are both on the same page when it comes to their mental healthcare.

Dr. Santos is a psychiatrist with more than 4 years of experience practicing in a variety of settings with an emphasis on psychiatric outpatient care. She is experienced in treating several psychiatric disorders including but not limited to: Bipolar and Related Disorders, Depressive Disorders, Anxiety Disorders, Trauma and Stressor Related Disorders, Obsessive-Compulsive and Related Disorders, and Substance Related and Addictive Disorders. Dr. Santos received her medical degree from the University of Queensland in Brisbane, Australia / Ochsner Clinical School in New Orleans, Louisiana. She completed her residency training at Louisiana State University in Shreveport, Louisiana. Dr. Santos tailors her approach to the individual patient. She focuses on medication management and incorporates several therapeutic techniques including supportive therapy, cognitive behavioral therapy, acceptance therapy and mindfulness.

Dr. Rajesh Gaddam is a Board Certified Psychiatrist who provides compassionate and empathic care. Prior to his formal training, he worked in clinical psychiatric research at Northwell, gaining experience in evidence-based medicine. He completed his adult psychiatry residency at Bergen New Bridge Medical Center, followed by Child & Adolescent Psychiatry Fellowship at The University of Chicago, where he served as Chief Fellow. Dr. Gaddam treats children, adolescents, and adults for a range of conditions including anxiety, depression, bipolar disorder, trauma, OCD, ADHD, and substance use disorders. Dr. Gaddam emphasizes a collaborative and comprehensive approach to understand a person's life, their circumstances, and what has contributed to their symptoms. He recommends including a family member or close friend in at least one session to get a sense of challenges from a different perspective. Besides using elements of supportive and psychodynamic psychotherapy, Dr. Gaddam will refer and work with your psychotherapist to foster self-reflection and growth. He also greatly values a holistic approach to treatment, emphasizing the importance of nutrition, physical activity, sleep hygiene, mindfulness, and a support system to well-being. He wishes to provide a safe space to promote healing and wellness, so individuals can prosper in their lives.