Michael Robbins, PMHNP

Dr. Michael Heneghan earned his medical degree from Cardiff University in Wales, United Kingdom, and practiced in both inpatient and outpatient settings in the UK and Australia before moving to the United States. He completed his psychiatry residency at Tufts Medical Center in Boston and a fellowship in forensic psychiatry at the University of Colorado. Board certified in Psychiatry and Neurology, Dr. Heneghan draws on experience with psychodynamic psychotherapy, CBT, and ACT to provide well-rounded, evidence-based care.

Dr. Heneghan brings a calm, kind, thoughtful, and thorough approach to his work. He prioritizes creating a safe and supportive space where patients feel respected and understood, helping them feel comfortable sharing openly as they move toward recovery and personal growth.

In the initial session, Dr. Heneghan carefully listens to each patient’s concerns, explores their history, and works to understand their goals. He provides a clear assessment and explanation before collaborating on a personalized treatment plan. His process is rooted in open communication, shared decision-making, and a commitment to empowering patients in their journey toward wellness.

Background and credentials

Dr. Joyln Ferrell is a board-certified psychiatrist with specialized training in treating depression and anxiety disorders. She earned her medical degree from Howard University College of Medicine and also holds a doctorate in pharmacy from the University of Georgia. She completed her residency training in psychiatry at VA Boston/Harvard Medical School and gained significant clinical experience at McLean Hospital. Additionally, she completed a fellowship in psychoanalytic psychotherapy at Columbia University Center for Psychoanalytic Training and Research.

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Treatment approach

Dr. Ferrell focuses on providing patient-centered care, emphasizing improving quality of life and helping patients reach their specific treatment goals. Her approach integrates medication management with supportive therapy. She believes in a collaborative treatment process and may recommend additional therapy support when necessary to optimize outcomes. She takes a cautious and limited approach to the use of controlled medications, ensuring responsible medication management.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive assessment of their symptoms, medical history, and treatment goals. Dr. Ferrell takes a thoughtful and individualized approach to care, working with patients to develop a treatment plan that incorporates medication management and supportive therapy. Follow-up visits typically last 20-30 minutes and focus on monitoring progress and adjusting treatment as needed. In some cases, she may recommend involving an additional therapist to further enhance the effectiveness of the treatment plan.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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Megan O’Brien is a board-certified Psychiatric Mental Health Nurse Practitioner (PMHNP) with experience in inpatient, outpatient, and emergency mental health settings. She earned her NP degree from UCSF, the top-ranked program in the country at the time. In addition to clinical work, she enjoys teaching and is passionate about training the next generation of compassionate psychiatric nurse practitioners.

Megan believes in meeting patients where they are, offering empathy, respect, and acceptance. She values open communication and sees treatment as a collaborative process. Her approach empowers patients to take the lead in their care while she supports them as a partner and guide along the way.

Megan begins by listening carefully to each patient’s story and asking relevant questions to understand their needs. Together, she and the patient build a tailored treatment plan that aligns with their goals. Her focus is on reducing mental health symptoms and helping people experience greater freedom and flexibility in their lives.

Dr. Shalini Dutta is a medical doctor with experience working across outpatient, inpatient, and community mental health settings. She has extensive experience caring for underserved and diverse populations and was a recipient of the SAMHSA Minority Fellowship Program Grant. Her fellowship training included a focus on Seeking Safety, an evidence-based, trauma-informed treatment model. Dr. Dutta has a strong clinical interest in trauma, trauma-informed care, and integrating psychotherapy principles with medication management. Her clinical work includes treating mood disorders, anxiety, trauma-related conditions, and substance use disorders.

Dr. Dutta values open, collaborative communication and takes a warm, respectful, and nonjudgmental approach to care. She emphasizes partnership and shared decision-making, ensuring patients feel heard and actively involved in their treatment. She brings a trauma-informed lens to her work and collaborates closely with patients to clarify goals and align care with their values. Dr. Dutta takes a holistic view of mental health, considering biological, psychological, and social factors.

Dr. Dutta begins care with a thorough assessment of psychiatric history, current concerns, and treatment goals. She prioritizes understanding how past experiences and trauma may influence present symptoms. Treatment plans are individualized and evidence-based, integrating medication management with therapeutic principles and psychoeducation. She collaborates with therapists and other providers as needed and regularly reviews progress, adjusting treatment based on patient feedback.

Dr. Sheena Dohar is a board certified general psychiatrist. Before joining Talkiatry, she practiced extensively in community mental health with adults of all ages in both outpatient and inpatient settings and as the medical director of several intensive outpatient and dialectical behavioral therapy (DBT) based programs. She has experience in private practice and in the dual diagnoses of mental health and substance abuse disorders. Dr. Dohar graduated from Carnegie Mellon University with a Bachelor of Science in Biology and Psychology and then completed medical school at West Virginia University School of Medicine. She trained during her residency at WVU, where she served as a chief resident and received the Brandon K. Fuller Award for Physician Empathy in 2017. Dr. Dohar's practice focuses on medication management. Her goals include helping people feel comfortable seeking treatment as well as promoting an understanding of the purpose and reasoning behind the use of various medications to treat psychiatric disorders. Typically, she offers this in conjunction with supportive or emotionally focused therapy in 30-minute follow-up visits. When Dr. Dohar may believe that additional therapy is also needed, she will ask that you bring a therapist into your care team to provide the best outcome. Dr. Dohar appreciates and values working with therapists within the Talkiatry practice and in the community in a collaborative effort to promote wellness. She strives to build strong therapeutic relationships with the people that she sees in her practice. Her passions include working in the community at large to encourage a better understanding of mental health disorders and to promote suicide awareness and prevention. She has interests in pharmacogenomics as well as treatment resistant approaches to depression. Dr. Dohar appears in several professional publications.‍

Dr. John Hendrick is a practicing psychiatrist who has recently served as medical director for clinical services at Erlanger Behavioral Health Hospital in Chattanooga, TN. After several years of private practice, he had served as Chief of Inpatient Psychiatric Services and then as Chief of Psychiatry at Mountain Home VA Medical Center. During his time at Mountain Home VA he was also a Professor of Psychiatry at Quillen Medical School at East Tennessee State University where he taught General Psychiatry courses and the Neurosciences of Psychiatry. His specialties include affective and anxiety disorders and he has specific expertise in neuropsychiatry, psychopharmacology and alternative treatments for affective disorders. He is a Distinguished Life Fellow of the American Psychiatric Association and is a Past President of both the Tennessee Psychiatric Association and the Southern Psychiatric Association. He has been awarded a Distinguished Service Award from the United States Public Health Service. He has been twice named the Outstanding Teacher Award from the ETSU Psychiatry Residency program and was awarded Course Director of the year for the Neurosciences residency course he developed. He holds an Irma J. Bland Award for Excellence in Psychiatric Education from the APA. He has an extensive psychiatric background in practice and as a teacher. He practices psychotherapy from an Eriksonian perspective and is well versed in individual and psychodynamic psychotherapies.