Ali Imran, MD

Background  and credentials    

Dr. Columban Heo is a board-certified psychiatrist. He earned his medical  degree from Touro University Nevada and completed his residency at Unity  Health White County Medical Center. Dr. Heo further specialized by completing  a fellowship in Consultation-Liaison Psychiatry at the Cleveland Clinic,  where he gained extensive experience working within multidisciplinary  healthcare teams, particularly focused on psychiatric care for patients with  complex medical conditions.    

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Treatment approach  

Dr. Heo specializes in treating a broad range of psychiatric conditions,  notably mood and anxiety disorders. He integrates medication management with  a holistic, personalized approach to treatment, emphasizing the  interconnectedness of mind, body, and spirit. Dr. Heo believes in tailoring  treatment plans individually, combining therapy and medications to suit each  patient’s unique needs, and highlights the importance of healthy  relationships in achieving overall mental health.    

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What you can expect in a first visit    

Patients visiting Dr. Heo for the first time can expect a comprehensive and  personalized assessment that explores not just their psychiatric symptoms but  their overall well-being and personal relationships. Dr. Heo prioritizes a  holistic evaluation, carefully balancing medication considerations and  therapeutic interventions tailored specifically to each patient’s situation  and goals. He creates an empathetic, collaborative atmosphere to discuss and  develop personalized plans for mental and emotional wellness.  

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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.

Nan Ambrosy is a PMHNP with over 23 years of experience in outpatient and inpatient settings, caring for patients across the lifespan with a wide range of diagnoses. She earned her Doctor of Nursing Practice from Graceland University and holds master’s and post-graduate certificates from Wichita State University. She is ANCC board-certified as both an Adult Psychiatric Clinical Nurse and Lifespan Psychiatric Nurse Practitioner.

Nan uses a patient-centered approach with shared decision-making, fostering strong therapeutic relationships. She focuses on the whole person, emphasizing a balanced lifestyle that includes physical health, sleep, nutrition, exercise, social connections, and spirituality.

She begins with a thorough biopsychosocial assessment and collaborates with patients to set treatment goals. Using clinical judgment and diagnostic criteria, she develops individualized plans, discussing evidence-based treatment options such as therapy and medications. Follow-ups include ongoing monitoring to assess progress and refine goals as needed.

Dr. Irene Pastis is a board-certified psychiatrist who specializes in adult psychiatry.  She completed residency training at East Carolina University in both internal medicine and psychiatry.  After residency, she pursued her passion in psychiatry and stayed on as a clinical assistant professor in the department of psychiatry at East Carolina University.  In this role she specialized in treating adults with mental illness in both the inpatient and outpatient settings.  She has spent a considerable amount of time teaching residents and medical students and has published several papers focusing on the neuroscience pathways of mental health conditions.  In her daily practice, Dr. Pastis focuses on evidence-based treatments utilizing the latest clinical guidelines and current approved treatments.  In addition to medication management, she also incorporates psychotherapy in the treatment of mental health conditions.  Dr. Pastis is passionate about taking a collaborative approach with her patients to help them reach their potential.

Dr. Williams-Jules is an adult psychiatrist who focuses primarily on medication management in conjunction with supportive therapy. She completed her undergraduate training at Spelman College in Atlanta, GA, followed by her master's in public health degree at New York Medical College. She has completed medical school at American University of Antigua and finished her residency in psychiatry at the University of Texas Southwestern. Dr. Williams-Jules has a passion for treating adults with mental health disorders, especially within the perinatal population. She has a genuine interest in management of trauma, while also treating a vast array of disorders including depression, anxiety, bipolar disorder and posttraumatic stress disorder. She has worked with clients of varying cultures and demographics, and has experience with treating patients with medical comorbidities. Dr. Williams-Jules takes a delicate approach to diagnosis and management and believes in holistic care, which incorporates mindfulness and deep breathing techniques to address the mind and body connection. She tailors individualized treatment to address the specific needs of patients. Dr. Williams-Jules is a member of the American Psychiatric Association and the Dallas County Medical Society. She has presented her research at the Annual APA conference and is co-author of many published psychiatric papers.

Dr. Schwartz is a board-certified Staff Psychiatrist at Talkiatry. He completed his residency at Bergen New Bridge Medical Center in Paramus, New Jersey, where he excelled in his leadership and knowledge, becoming the Chief Resident in just his third year of residency at the busiest outpatient behavioral health clinic in New Jersey. Upon completion of his third year of residency, he went on to become Chief Academic Resident of his program, which allowed him to bestow his knowledge of psychiatry on younger psychiatrists in training. After completing his residency in General Psychiatry, he went on to complete a fellowship in the prestigious Mount Sinai Health System in New York City, based primarily out of the Beth Israel location. During this fellowship he studied Consultation-liaison psychiatry, also known as psychosomatic medicine. It is an exciting subspecialty of psychiatry that focuses on the care of patients with comorbid psychiatric and general medical conditions. Consultation-liaison psychiatry deals with the understanding and advancement of medical science, education, and the provision of healthcare for medically ill and complex patients. Using his training, Dr. Schwartz can focus on using his extensive medication knowledge to help treat an array of psychiatric disorders. Despite medication management, he also works on a holistic approach to psychiatry, including working with the patient to get the proper therapy services when clinically indicated. During the initial interview, a thorough assessment is done, including any medical and psychiatric history, medications you may be currently taking, and supplements before any medication is dispensed. Using his knowledge in psychiatry and consult-liaison psychiatry, Dr. Schwartz's interests include depression, anxiety, ADHD, obsessive compulsive and related disorders, transgender patients on hormone therapies and post-surgical transition. He also has an extensive interest in medical illnesses with a psychiatric component such as cancer patients, transplant, HIV, and many others alike. He looks forward to working with you to enhance your emotional well-being.

Elizabeth Shaffer, MD, is an accomplished psychiatrist specializing in child and adolescent psychiatry. She earned her M.D. degree from St. George's University School of Medicine and holds a Bachelor of Science in Child Development from Appalachian State University where she graduated summa cum laude. Dr. Shaffer's passion for working with children and families developed during her involvement in a pre-K Head Start Program in Rural North Carolina. She completed her General Psychiatry Residency and Child & Adolescent Psychiatry Fellowship at Jerry M. Wallace School of Osteopathic Medicine at Campbell University. Dr. Shaffer obtained ABPN Board Certification in General Psychiatry in 2023 and is working towards Board Certification in Child & Adolescent Psychiatry. Dr. Shaffer has received honors and awards for her contributions to psychiatry, including the Laughlin fellowship through The American College of Psychiatrists and Resident of the Year at Cape Fear Valley Health System in 2022.Her areas of interest focus on neurodevelopmental disorders such as ADHD, Autism, and Intellectual Delay. Dr. Shaffer is affiliated with professional organizations like AACAP and APA, demonstrating her commitment to professional development. Dr. Shaffer is dedicated to promoting mental health awareness and family and patient psychoeducation. Dr. Shaffer emphasizes a joint decision-making approach to treatment options and utilizes local resources to provide wrap-around support. Dr. Shaffer is a respected psychiatrist known for her excellence, compassion, and innovative approach to mental health care. Her extensive education, accolades, research contributions, professional affiliations, and community involvement reflect her commitment to making a positive impact in her patients' lives and the broader community.