Lopa Rana, MD

Dr. Ioana Horotan-Enescu is a board-certified Psychiatrist. Before joining Talkiatry, she was an Active-Duty staff psychiatrist at Blanchfield Army Community Hospital, Fort Campbell, KY. Her military service also included roles such as Medical Director of Behavioral Health and Interim Clinic Chief for Embedded Behavioral Health Clinic. She completed her internship and residency at Walter Reed National Military Medical Center and earned her Doctor of Osteopathy Degree from the University of New England College of Osteopathic Medicine. Her clinical experience spanned from the inpatient to the outpatient setting and afforded her the opportunity to develop comprehensive skills in the treatment of PTSD, mood disorders, thought disorders, addiction and perinatal mood disorders. Her teaching experience spanned multiple institutions, where she has served as a preceptor and mentor for medical students, nurse practitioner and physician assistant students. In addition to medication management, she augments her practice by implementing mindfulness, psychodynamic and supportive therapy techniques in her everyday practice to enhance treatment and improve treatment response. Dr. Horotan-Enescu holds several certifications, including in Cognitive Behavioral Health Therapy for Suicide Prevention, Motivational Interviewing and Battlefield Acupuncture. She has delivered presentations at national and international conferences on various topics, reinforcing her commitment to advancing the field of psychiatry.

Dr. Cheryl Person is the National Director of Clinical Quality at Talkiatry. She is board certified in general adult psychiatry and has been in practice for 20 years. Dr. Person focuses on medication management but believes that is only part of successful treatment. She will spend her time providing motivational interviewing or supportive therapy, and believes it is often critical to have a therapist as part of the treatment team. Dr. Person received her medical degree from Tulane University School of Medicine. She completed her psychiatric residency at Johns Hopkins and a psychiatric epidemiology fellowship at Johns Hopkins Bloomberg School of Public Health with a focus on disaster mental health. After relocating to Texas in 2010, she worked as Director of Psychiatric Services of a large safety-net hospital in Houston. Prior to Talkiatry, she most recently was the executive director/chief physician of a large university student health center and campus pharmacy. In addition to adult psychiatry, Dr. Person has worked extensively with victims of acute trauma and her primary focus is on working with patients who have anxiety and mood disorders.

Dr. John Weller, MD, is a psychiatrist with a strong foundation in science and clinical care. He earned his undergraduate degree in molecular genetics from the University of Vermont and conducted neuroscience research in both academic and industry settings. A graduate of St. George’s University School of Medicine, he completed his psychiatry residency at Mather Hospital, Northwell Health, where he was honored as Resident of the Year in 2025 and inducted into the Alpha Omega Alpha Honor Medical Society.

Dr. Weller is committed to providing compassionate, evidence-based care that considers the full spectrum of biological, psychological, and social factors. He builds therapeutic relationships on empathy, respect, and trust. By tailoring treatment plans to each patient’s personal and cultural context, he helps individuals take control of their mental health and work toward long-term recovery and resilience.

In the first session, Dr. Weller takes time to listen carefully and gather a thorough understanding of each patient's concerns, history, and current functioning. He uses empathy and active listening to foster open communication and develop personalized treatment plans that may include therapy, medication, or lifestyle changes, with the goal of restoring wellness and stability.

Jennifer Hewitt is a board-certified psychiatric nurse practitioner, credentialed through the American Nurses Credentialing Center (ANCC). She earned her master’s degree in nursing from Gonzaga University and has extensive experience treating a wide range of mental health conditions, including anxiety, depression, obsessive-compulsive disorder (OCD), bipolar disorder, schizophrenia, and post-traumatic stress disorder (PTSD).

Her passion for psychiatry and dedication to patient care are rooted in her background as an emergency room nurse and her experience in emergency medical services (EMS). This foundation has given her a unique perspective on the critical role mental health plays in overall well-being.

Jennifer provides compassionate care to adults, children, and adolescents, recognizing that each individual’s path to mental wellness is unique. She believes that while medication can be an important part of treatment, self-care and therapy are equally essential components of a holistic approach.

She is known for her empathetic listening and genuine connection with patients. Through collaboration, she helps individuals set realistic goals and empowers them to take an active role in their recovery. Her kindness and commitment create a supportive environment where patients can thrive on their journey toward mental wellness

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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. Alexandra Held is a general psychiatrist who holds a bachelor’s degree in psychology. She completed her psychiatry training at the University of Miami Miller School of Medicine. Her clinical interests include mood and anxiety disorders, PTSD, and OCD. She is passionate about incorporating psychotherapeutic tools into her practice, including supportive psychotherapy.

Dr. Held takes a warm, collaborative, and nonjudgmental approach to care. Her goal is to create a safe and supportive space where patients feel heard and empowered to take an active role in their treatment, using a combination of supportive psychotherapy and medication management.

During the first few sessions, Dr. Held will take time to get to know the patient—their history, current concerns, and what they hope to achieve through treatment. Together, they will develop a comprehensive plan that may include psychiatric medications and supportive therapy. Follow-up visits are typically focused on checking in, adjusting treatments if necessary, and continuing to build on progress.

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