Christa DeFries, MD

Dr. Osaji is an Adult Psychiatrist who completed her psychiatry training at Texas Tech University Health Sciences Center, Lubbock, Texas. She served her program as a chief resident, which helped to build her leadership and interpersonal skills. She also dedicated herself to leading her resident team and fostering a supportive learning environment. She received the award of excellence in psychiatry knowledge during her residency training. She also has a Master's in Public Health from Texas Tech University Health Sciences Center and is a Phi Kappa Phi Honor Society member.

Dr. Osaji is an adult outpatient psychiatrist who provides care via telehealth. She strives to create a supportive, collaborative space where patients can explore what's bringing them in and work together to determine the best path forward. Whether someone is new to mental health care or returning after some time away, Dr. Osaji recognizes that it's normal to feel a mix of emotions at the start. She takes a thoughtful, personalized approach to treatment that may include medication, therapy recommendations, or simply creating space to talk. While telehealth offers flexibility and convenience, Dr. Osaji is committed to building a meaningful connection with each patient. She does not provide emergency services between sessions but ensures patients can access the appropriate resources when needed. As someone early in her career, Dr. Osaji brings fresh training and a strong commitment to transparency, lifelong learning, and evidence-informed care. She values open communication and believes deeply in each person's capacity for meaningful change.

Dr. Osaji creates a supportive, collaborative space to help patients explore their mental health concerns and goals. She takes a personalized approach that may include medication, therapy referrals, or check-ins, always valuing patient input. Follow-up visits are 20 to 30 minutes, focusing on monitoring progress and adjusting care as needed. She offers convenient access through telehealth while building meaningful, transparent relationships rooted in respect and growth. Dr. Osaji also values collaborative care and often coordinates with therapists or refers patients to therapy when additional support can enhance outcomes.

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Dr. Michael A. Murphy is board-certified in General Psychiatry as well as Child and Adolescent Psychiatry by the American Board of Psychiatry and Neurology. He has over 20 years of experience practicing medicine in outpatient, acute, and residential settings. He provides psychiatric assessments and medication management along with brief supportive psychotherapy. He is a strong advocate of collaboration between psychiatric care and psychotherapeutic interventions and encourages the utilization of therapists and counselors. Dr. Murphy holds a bachelor's degree in Chemistry Pre-med from Florida A & M University and a Medical Degree from the University of Florida College of Medicine. He completed both his residency in General Psychiatry and Fellowship in Child and Adolescent Psychiatry at the University of Virginia. He formally served as Chief of Behavioral Health Services at Ft. Eustis, Virginia. He has previously provided acute care and residential treatment at Newport News Behavioral Health Center, outpatient services in the community, and the foster care system. He has recently served as medical director of Harbor Point Behavioral Health Center. Dr. Murphy has an extensive history of providing care for both the adult and child population. He specializes in the treatment of children with Mood Disorders, Anxiety Disorders, ADHD, and Pervasive Developmental Disorders.

Dr. Weasen is a board-eligible adult psychiatrist with Talkiatry. He received his medical degree from Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia. He then moved to Washington, D.C. to complete his residency training at Saint Elizabeths Hospital, where he served as Chief Resident during his final year. He is a member of the American Psychiatric Association (APA) and has presented at the APA Annual Meeting on the topic of virtual fatigue. He has had extensive experience working with a wide array of patients, including college/graduate students, geriatric patients, military veterans, and LGBTQ+ populations.

Dr. Weasen provides a combination of medication management and supportive psychotherapy. Occasionally, he may work with you on finding additional support as well, including bringing on a dedicated therapist as part of your treatment team. He believes in tailoring treatment to each person’s needs. He primarily treats mood disorders, anxiety disorders, ADHD, PTSD, OCD, and insomnia, but believes in seeing beyond the diagnosis and focusing on the individual first and foremost.

Dr. Cheryl Dasler is a double board certified psychiatrist in General Psychiatry and Child and Adolescent Psychiatry. Following completion of her training, she spent the next 10 years fulfilling her passion for indigent care of children, working in a community mental health center. She went on to complete additional training in Functional Medicine, with the goal of offering patients greater insight into the physical factors contributing to their symptoms. She has also trained in Mindfulness Based Stress Reduction, and encourages mindfulness as a healing technique along with medication management. Over the following 10 years, Dr. Dasler treated a broad range of patients in a private practice setting, including children and adults. She is passionate about treating ADHD, and utilizes medications plus skill building in her sessions to help her patients maximize their potential. Her extensive experience also includes treating mood disorders, anxiety disorders, PTSD, and OCD. She believes in a mind-body interconnection, and strives to address both aspects to provide truly holistic care. Patients looking for a psychiatrist will find Dr. Dasler is a warm, compassionate provider who genuinely listens. She works in partnership with patients to find a treatment plan that will be effective, while also being sensitive to financial or insurance coverage factors that may impact care.

Dr. Stephen Hawk is a board-certified psychiatrist with 25 years of experience. He earned his Doctor of Osteopathic Medicine from Kansas City University of Medicine and Biosciences and completed his psychiatry residency at the University of South Florida, Tampa. He has served in private practice and held leadership roles at the Veterans Administration, including Chief of Mental Health at Bay Pines VA. He led the launch of the VA Suicide Prevention 2.0 Telehealth Program and has training in AI in medicine.

Dr. Hawk combines talking therapies, neuromodulation, and modern psychopharmacology in a collaborative and empathic style. He focuses on family dynamics and integrates psychodynamic and biopsychosocial approaches, using creativity and open dialogue to tailor care.

He begins with open-ended conversations to help patients tell their story, then develops treatment plans together aligned with diagnostic standards. His approach includes medication review, mindfulness, CBT, supportive and psychodynamic therapy, and lifestyle education to support holistic wellness.

Maria-Anne Duncan, LCSW-R holds the position of psychotherapist at Talkiatry. She has over twenty years of experience working with individuals, families, and groups addressing symptoms of anxiety, depression, and trauma. Before joining Talkiarty, Ms. Duncan worked as a Director of Clinical Services for a not-for-profit in the Hudson Valley Region of New York State. Prior to that, Ms. Duncan worked for a local hospital in the psychiatric department providing treatment to the Inpatient and Outpatient units. She has held several positions as a clinician and program director. Additionally, Ms. Duncan has taught parenting classes, Mental Health First Aid and provides training on Trauma-Informed Care. Ms. Duncan started her career as a clinician in a Crime Victims' Assistance Program funded by New York State. Through this experience she began to explore the effects of trauma on individuals, their families, and the community. Ms. Duncan has been trained in both EMDR (Eye-Movement Desensitization and Reprocessing) and SE (Somatic Experiencing). She utilizes these body-focused therapies to help her clients be released from years of painful energies locked in their systems. Ms. Duncan received her Bachelor's Degree from Marist College and her Master's from Fordham University. She has been trained to supervise Social Work Students in their field placements. Ms. Duncan appeared in the Vassar College student-developed training video, "He said, She said" which is used to train peer sexual assault counselors. In April of 2022, she became a trainer for LivingWorks "SafeTALK" program. Additionally, Ms. Duncan has a trained therapy dog, Monkey, who goes with her to local hospitals and nursing homes to provide comfort and affection.