Sibi Selvarajah, LCSW

Dr. Mary O'Malley is board certified in Adult Psychiatry and Sleep Medicine. She received her medical degree from Weill Cornell Medical School and PhD in Neurobiology from The Rockefeller University. She completed her Psychiatry residency and Sleep Medicine Fellowship training at the New York University Medical Center. In her psychiatric practice, Dr. O'Malley uses an integrative approach to health, combining evidence-based concepts in neurobiology with psychological, social and spiritual/existential worldviews to understand and treat every patient. Her primary practice is medication management. She also integrates elements of psychotherapy into her work, typically within 30-minute follow-up visits. In addition to medication and psychotherapy, she incorporates wellness tools into visits, such as mindfulness exercises and sleep management strategies. If she believes that additional psychotherapy is needed, she will recommend that you add a therapist to your care team. Dr. O'Malley has extensive experience working with people from many stages of life, with diverse world views and cultural backgrounds. She has always had an inclusive practice and welcomes people who identify as LBGTQIA+. As part of her own life path she became an Interfaith Minister and enjoys including spirituality and the supportive role it can play in healing for her patients. Her primary focus is working with adults with mood and anxiety disorders, trauma symptoms, ADHD, and problems with sleep. She enjoys working with people facing life transitions, especially older adults and women who are struggling with mental health challenges related to pregnancy and post-partum health. Prior to joining Talkiatry, Dr. O'Malley was working at Hartford Healthcare with adults in intensive outpatient programs and at Hackensack Meridian Health outpatient clinics. She was the medical director of the Consultation Liaison Service at Berkshire Medical Center in Pittsfield, Massachusetts, and an assistant professor at UMass Medical School. She has published and presented widely on topics related to Wellness in Psychiatry, Ethics and Sleep Medicine. She is an advocate for finding your voice in medical decision-making and enjoys using sound healing for relaxation and stress management.

KaShunda "Shun” Davis is a Licensed Professional Counselor in Texas. She received her Master of Science in Counseling at Amberton University and postgraduate studies in Professional Counseling and Development at Lamar University. Shun has worked in various settings in the mental health field including community-based counseling centers, private practice, and large group practices providing counseling services to adults, couples, and adolescents. Her professional experience has focused on mood disorders (depression, bipolar disorder, persistent affective disorder), anxiety, trauma, personality disorders, self-esteem and confidence, gender identity and LGBTQIA+ concerns; relationship concerns, and life transitions. Shun's integrative therapeutic style provides an emotionally safe space that supports self-exploration, empowerment, and authenticity. Specializing in cognitive behavior therapy, dialectical behavior therapy, trauma-focused therapy, narrative therapy, and mindfulness; she tailors her approach to meet the unique needs of each individual. She is dedicated and passionate about assisting individuals to work through barriers to create the lives and relationships that they desire and to develop a sense of personal strength and self-acceptance. She celebrates and welcomes the diversity of all clients and strives to create an affirming, inclusive, and non-judgmental space to explore individual needs and therapeutic goals.

Wayne R. McIntosh, PMHNP-BC, is a dedicated mental health professional with over a decade of experience in psychiatric care. He earned his advanced nursing degree with distinction from Arizona State University and also holds a Bachelor of Science in Nursing from Grand Canyon University and an Associate of Science in Nursing from Harry S. Truman College. He has been a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP-BC) since 2015.

Wayne specializes in family-centered care, working with individuals aged 18 to 65. Whether supporting patients through anxiety, depression, ADHD, or life transitions, he develops personalized diagnostic and treatment plans that may include therapy, coping strategies, and, when appropriate, medication. His approach emphasizes clear communication and collaboration, empowering patients to understand their challenges, apply practical tools, and achieve lasting change.

Throughout his career, Wayne has served as a Psychiatric Nurse Practitioner and Associate Director of Medical Services, leading multidisciplinary teams and promoting accessible, high-quality care. As a Faculty Associate at Arizona State University, he has mentored future nurse leaders, focusing on clinical excellence and patient advocacy. His military background and volunteer work further reflect his commitment to serving diverse populations with compassion and respect.

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Demetries North holds the position of Licensed Professional Counselor with over 20 years of experience across mental health, substance use, and public health settings. He has worked extensively with adults, Veterans, justice-involved individuals, and underserved populations. Demetries currently serves in senior clinical leadership roles within community mental health and federal systems and has experience in outpatient, integrated primary care, forensic, and substance use treatment programs. He is a doctoral candidate in Health Administration with a focus on public health education and holds multiple state licenses, allowing him to provide care across several jurisdictions.

Demetries values collaboration, transparency, and mutual respect in the therapeutic relationship. He takes time to listen carefully and understand each client’s concerns without rushing or making assumptions. His approach is practical, structured, and supportive, with an emphasis on real-life progress. He works to create a calm, non-judgmental environment where clients feel safe discussing complex or sensitive issues, particularly when navigating stress, trauma, life transitions, or long-standing patterns.

Demetries begins with a thorough initial session focused on history, current concerns, strengths, and goals. He uses evidence-based assessment tools when appropriate and collaborates with clients to develop individualized treatment plans that evolve over time. Sessions emphasize skill-building, insight, accountability, and measurable progress, with regular goal reviews and coordination of care as needed.

Dr. Alexis Kropf is a board-certified adult psychiatrist beginning her practice at Talkiatry after four years of clinical experience in residency. Dr. Kropf primarily focuses on providing medication management during 30-minute follow-up visits, weaving in elements of supportive therapy according to the needs of her clients. When additional therapy is indicated to promote recovery, Dr. Kropf may recommend that her clients work with a therapist as part of the treatment team. Dr. Kropf credits her undergraduate education at Southwestern University, a small liberal arts college, for strengthening her curiosity about and dedication to serving others. She received her medical degree from the University of Texas Southwestern Medical Center in Dallas, Texas, where she also completed her psychiatry residency training. During residency, she was involved in medical student education and resident leadership, serving as a chief resident during her final year of training. She also utilized her fluency in Spanish and medical Spanish interpreter training to serve Spanish-speaking patients and to lead Spanish-language group therapy sessions. In addition to psychopharmacology, Dr. Kropf studied psychotherapeutic interventions, including psychodynamic and cognitive behavioral therapies. She has experience working with clients experiencing many different mental health challenges, with a primary clinical focus including the treatment of anxiety, depression, and PTSD.

Dr. Amy Prince is a board-certified adult psychiatrist who graduated from SUNY Downstate Medical Center and completed her residency training at UMass Medical Center, where she served as chief resident during her final year. Dr. Prince has worked with patients in a variety of treatment settings, including inpatient, partial hospital programs, community mental health centers, and outpatient. Dr. Prince believes that integrating therapy, psychopharmacology and lifestyle modifications can lead to the greatest gains in emotional wellness. She believes that working collaboratively with patients leads to the best outcome. Dr Prince has worked with a diverse patient population, but especially enjoys working with patients with mood disorders, anxiety, and ADHD. Dr. Prince offers supportive therapy in conjunction with psychopharmacology. In cases in which a patient would benefit from more intensive therapy than what could be done in 20-25 minute visits, Dr Prince may recommend adjunctive therapy with a licensed therapist.