Clayton Stone, DO

Dr. Niles (he/him) holds the position of Staff Psychiatrist at Talkiatry. He has four years of experience in outpatient psychiatry and is board-certified for adult psychiatry. He has received training in the use of cognitive behavioral therapy, supportive therapy, motivational interviewing, psychodynamic therapy, and dialectical behavioral therapy skills. He uses his training in therapy in tandem with medicine management to provide holistic, person-centered care. During his undergraduate studies at the University of Pittsburgh, while completing his pre-medical classes, he also pursued certification in the history and philosophy of medicine. Additionally, he studied the effect of culture and ethics on healthcare. He earned a Bachelor of Science in Psychology with a minor in Chemistry. He attended medical school at the West Virginia School of Osteopathic Medicine. His psychiatry residency training was completed at Charleston Area Medical Center. While in residency, he worked to improve cultural awareness in the outpatient setting. Dr. Niles is interested in treating patients with a wide variety of diagnoses. He treats mood disorders, anxiety disorders, trauma-related disorders, personality disorders, OCD, comorbid addiction, mild eating disorders, neurodevelopmental disorders such as autism spectrum disorder, and more. He also strives to provide care that affirms LGBTQIA+ identities and underwent additional training in transgender mental healthcare.

Dr. Shaughnessy is boarded in adult psychiatry and has over 30 years of experience. Dr. Shaughnessy practices medication management in a supportive collaborative environment. Treatment recommendations may include psychotherapy with another professional in addition to medication management .Dr. Shaughnessy has worked with individuals having the spectrum of psychiatric disorders but is particularly interested in working with those with mood and anxiety disorders.

Dr. Zezetko completed her medical training at the University of Georgia/August University Medical Partnership. While in medical school, she received a Master of Business Administration at the University of Georgia. She then moved to North Carolina to complete her psychiatric residency training at the Brody School of Medicine/ECU Health Medical Center. During her training, she gained extensive clinical experience in working with adults and veterans in psychiatric inpatient, outpatient, and emergency settings. She also served as a chief resident of the psychiatry program and published several case studies.

Dr. Zezetko relies on evidence-based treatments to guide pharmacotherapy decisions. In addition to medication management, she also incorporates supportive psychotherapy and psychodynamic psychotherapy techniques in her visits with her patients. When appropriate, Dr. Zezetko will refer patients for further psychotherapy and collaborate with therapists to provide more comprehensive care. Dr. Zezetko takes great pride in forming meaningful connections with her patients and listening to their concerns.

Dr. Zezetko will conduct a comprehensive psychiatric evaluation and take time to understand patients’ individual concerns, mental health goals, and history. Dr. Zezetko believes in building a strong therapeutic relationship that empowers patients to join in a collaborative discussion for optimizing their individual treatment plans and reaching their defined goals.

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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. Sabrina Ghim is a board-certified physician specializing in adult psychiatry and practices adult psychiatric medication management. She focuses on building a strong therapeutic and collaborative environment with patients. She works with individuals struggling with depression, ADHD, obsessive compulsive disorder, anxiety disorders, including generalized anxiety, and social anxiety. Dr. Ghim usually meets with patients monthly for psychiatric follow up appointments. She provides psychiatric medication management in a comprehensive manner, paying careful attention to each patient's unique biological, psychological, and cultural make-up. She is diligent about keeping up-to-date on the research and expanding frontiers of psychiatry and psychopharmacology. She strongly believes in tailoring treatment in an integrative and collaborative manner to provide the best outcome for each unique patient. In some instances, Dr. Ghim may recommend the addition of a separate therapist in order to help facilitate the best care possible. Dr. Ghim experienced various cultures growing up in different countries and environments, shaping her open-minded demeanor and views, and eventually her interest in the human mind and psychiatry. She earned her bachelor's degree in Molecular Biology with honors, and a Doctor of Medicine (M.D.) degree from the University of Central Florida College of Medicine. She completed her Adult Psychiatric Internship and Residency training in New York City, at the Mount Sinai Morningside and West Hospitals, where she treated a diverse patient population with psychiatric illnesses in emergency, inpatient, and outpatient settings. Dr. Ghim is currently licensed in and seeing patients located in the states of New York, Florida, and Texas for medication management.

Dr. Roxanne McClung is completing her General Psychiatry Residency at the University of Texas Health Science Center at Tyler, where she serves as Chief Resident. She earned her MD from the American University of the Caribbean and holds a Master of Science in Clinical Psychology from the University of Texas at Tyler and a BA in Psychology from Southern Methodist University. With over 20 years of experience in mental health, she has worked as a case manager, psychotherapist, and program/clinical director.

Dr. McClung is passionate about helping people through life’s challenges. She creates a non-judgmental, patient-centered environment that fosters open communication and collaboration. She emphasizes individualized care and integrates lifestyle medicine and psychotherapy, primarily using Cognitive Behavioral Therapy and Cognitive Processing Therapy.

Dr. McClung begins with a thorough assessment to understand each patient’s history, concerns, and goals. She works collaboratively to create a personalized treatment plan that may include medication and evidence-based therapy. Her approach ensures clarity, respect, and patient involvement throughout the process.