Catherine Cashman, DO

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.

Donna is a Board-Certified Psychiatric Nurse Practitioner dedicated to breaking down mental health stigma and expanding access to compassionate, quality care. With over 20 years of nurse practitioner experience, she has supported patients and families through life’s emotional and physical challenges across outpatient, inpatient, and telepsychiatry settings. Donna is passionate about creating a safe, empowering space where individuals feel seen, heard, and valued on their mental health journey.

Donna helps patients become the best, healthiest version of themselves, both mentally and emotionally. She values open communication, mutual respect, and collaborative decision-making. Her treatment plans include medication management, healthy coping strategies, and tools to build self-awareness and resilience. Known for her warmth and empathy, Donna creates a judgment-free environment where every voice matters.

Donna begins by building trust through a compassionate, in-depth initial interview. Together with each patient, she develops a personalized treatment plan that blends medication management with lifestyle recommendations tailored to individual goals and values. Her holistic approach focuses not just on symptom relief, but on fostering lasting growth, confidence, and overall well-being.

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Zakiyyah Weatherspoon is a dual-certified Family Nurse Practitioner and Psychiatric Mental Health Nurse Practitioner with over a decade of experience. Since 2011, she has worked in family medicine, and since 2013, she has focused on mental health care across the lifespan. Her background includes treating children, teens and adults in hospitals, private practices, and community settings.

Since 2017, Weatherspoon specialized in helping individuals manage depression, anxiety, bipolar disorder, OCD, PTSD, ADHD, ODD, eating disorders, and substance use. She uses supportive therapy, solution-focused therapy, and cognitive behavioral therapy to help clients feel heard, understood, and empowered.

Weatherspoon is passionate about breaking the stigma around mental health. She encourages her clients to speak up, get help, and take control of their mental wellness. Her approach is based on the Mental Health Recovery Model, which focuses on hope, healing, and building a life beyond diagnosis.

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Dr. Swetha Mummini earned her medical degree from SUNY Downstate Medical Center and completed her psychiatry residency at the University of Maryland/Sheppard Pratt. She has worked across various clinical settings, including inpatient units, residential treatment centers, and substance use disorder clinics. Her clinical interests include mood disorders, OCD, women’s mental health, and eating disorders.

Dr. Mummini takes a holistic approach to mental health, recognizing that there is no one-size-fits-all solution. She thoughtfully integrates medication when appropriate, alongside lifestyle changes, sleep, and stress management. She prioritizes strong therapeutic relationships and uses 30-minute follow-up visits that often include elements of psychotherapy.

In the first appointment, Dr. Mummini gathers a thorough psychiatric history, explores current symptoms, and learns about the patient’s goals. She works collaboratively to develop personalized, evidence-based treatment plans, blending integrative psychiatry with ongoing support for long-term well-being.

Dr. Jason Chin earned his Bachelor’s degree from Duke University and his M.D., along with completing his psychiatry residency, at Wake Forest University School of Medicine. He is board-certified in psychiatry and brings extensive experience from both outpatient and inpatient settings. He also specializes in interventional treatments, including Electroconvulsive Therapy (ECT) and Transcranial Magnetic Stimulation (TMS).

Dr. Chin values patient autonomy and strives to provide the knowledge needed for patients to make informed decisions. He prioritizes building a strong therapeutic alliance and integrating evidence-based medicine to guide care.

Dr. Chin begins by listening to the patient’s full story to understand them as a whole. He explores their past, present, and future to create a comprehensive treatment plan designed to empower patients to move forward and improve their mental health.

Dr. Alexa Hall is a board-certified adult psychiatrist with extensive training and experience across inpatient, partial hospitalization, intensive outpatient, and outpatient psychiatry settings. She earned her medical degree from Saint Louis University School of Medicine and completed her psychiatry residency at Harvard South Shore. Through her clinical work with the Harvard Medical School system and the Boston VA Healthcare System, Dr. Hall developed expertise in caring for diverse patient populations. She has also served as Medical Director for multiple psychiatry practices, overseeing services such as outpatient medication management, Spravato, IV Ketamine, and Transcranial Magnetic Stimulation (TMS). Outside of work, she enjoys cooking and spending time with her family.

Dr. Hall provides a supportive, non-judgmental environment where patients feel heard, respected, and understood. She takes a collaborative approach, working in partnership with patients to set and achieve individualized wellness goals. Her practice emphasizes whole-person care, integrating both mental and physical well-being into each treatment plan.

Dr. Hall begins by listening closely to understand each patient’s history, experiences, and concerns. From there, she collaborates with patients to identify their personal treatment and wellness goals. She develops individualized treatment plans tailored to these goals, focusing on supporting meaningful progress and long-term well-being.