Margaret Reyes, PMHNP

Dr. S. Taylor Williams is a psychiatrist with Talkiatry. She is board-certified in psychiatry and has been practicing over 14 years. Dr. Williams received her MD from the University of Alabama School of Medicine at UAB. She completed her psychiatry residency at the University of Tennessee Health Science Center. Prior to joining Talkiatry, she held an academic appointment at UTHSC as Assistant Professor of Psychiatry and was the Clinical Director of the Memphis Mental Health Institute. She specializes in the treatment of young adults and LGBTQ patients. Her practice focuses on medication management.‍

Dr Cardiel- Sam is Board Certified in both General Psychiatry and Child and Adolescent Psychiatry. He completed undergraduate training at University of Miami followed by medical school at St. Georges University. He has completed Residency in Psychiatry at Bergen New Bridge Medical Center and fellowship training for Child and Adolescent Psychiatry at Penn State University.  

His training in Child and Adolescent Psychiatry has given him a unique perspective on mental illness. He has found that these conditions rarely start in adulthood, but rather, are a product of multiple factors and years of lived experience. For this reason, Dr Cardiel- Sam approaches his patients through a trauma informed lens; an acknowledgement of the unique story and challenges that each individual has faced. He is comfortable treating a wide variety of psychiatric conditions including depression, anxiety, bipolar disorder, ADHD and many more.

Working with Dr Cardiel- Sam, you can expect holistic and collaborative psychiatric treatment. He believes that medication along with therapeutic treatment should fit seamlessly into a patient’s life, with minimal inconvenience. He strives to empower patients in shared medical decision making, making time to explain risks/benefits and alternatives for treatment.

Dr. Andrew Miller is a board-certified psychiatrist with extensive experience treating patients across Indiana. He earned his undergraduate degree in Biology with a minor in Chemistry from Indiana University, followed by his Doctorate of Medicine and residency training in psychiatry. He went on to complete a fellowship in child and adolescent psychiatry and maintains active involvement in professional organizations, including serving as past president of the Indiana Council of Child and Adolescent Psychiatry. Outside of medicine, Dr. Miller values time with his wife and two children and enjoys sports, Lego building, and supporting Indiana athletics.

Dr. Miller believes in building a collaborative therapeutic relationship grounded in respect and open communication. He strives to create a safe, supportive environment where patients of all ages—children, adolescents, and adults—feel heard and understood. He works to balance medical expertise with patient preferences, encouraging shared decision-making and honoring each individual’s goals in treatment.

Dr. Miller begins with a thorough evaluation to gain a complete understanding of each patient’s history, strengths, and challenges. From there, he develops a personalized treatment plan that may include therapy, medication management, and integration of other supportive resources. He is committed to ongoing follow-up, adjusting care as needed, and helping patients move toward lasting improvement in their mental health and overall well-being.

Dr. Nida Khan is a board-certified psychiatrist starting her post-graduate practice with Talkiatry. She completed her undergraduate degree in Biochemistry at Smith College, earned her medical degree at New York Institute of Technology College of Osteopathic Medicine and completed her psychiatry residency training at Northwell Health. During her residency, she was involved in resident leadership and education, serving as academic chief resident during her third year of training. Dr. Khan's practice focuses on a holistic, patient-centered approach. Her practice is rooted in evidence-based practices and focuses on providing medication management during 30-minute visits along with supportive therapy to meet the unique needs of individuals under her care. Occasionally, she may believe that additional therapy is needed and may recommend a therapist be brought into your care team for optimal care.

Dr. Michael Fiori is Board Certified in Adult Psychiatry and Addiction Medicine. He has practiced general psychiatry for 37 years, and has also sub-specialized in Addiction Psychiatry for the past 20 years. Dr. Fiori's practice emphasizes Diagnostic Clarification, which is an ongoing process. He is highly trained and experienced in the biological and psychosocial underpinnings of psychiatric problems. He typically follows diagnostic evaluations with 30-minute follow up visits for medication adjustments and brief therapy. Dr. Fiori often enjoys collaborating with outside therapists when needed. Dr. Fiori graduated from Amherst College and received his medical degree from NY Medical College. He subsequently completed his residency in psychiatry at the Mount Sinai Medical Center in NYC. He excelled in Academic Psychiatry as both a teacher and a mentor. His practice has always combined medications with evidence-based therapies to alleviate suffering and maximize functioning. In addition to his work as a Board Certified Adult Psychiatrist, he has specialized in helping patients suffering from Substance Use Disorders. Dr. Fiori is Board Certified in Addiction Medicine, and helps patients understand the interrelationships between their Substance Use Disorders and their Psychiatric illnesses.

Dr. Bartek holds the position of Staff Psychiatrist at Talkiatry. She is board-certified in General Psychiatry, Pediatrics, and Child and Adolescent Psychiatry. She has been caring for children and adolescents as a physician for more than 15 years. Dr. Bartek's approach is holistic, collaborative, supportive, and patient-centered. Dr. Bartek draws on her years as a pediatrician working with families and children in her work as a psychiatrist. Dr. Bartek incorporates therapeutic techniques into medication management visits, but she may also recommend adding a therapist to your care team for the best results. She received her medical degree from the University of Washington School of Medicine in Seattle, WA, before moving to Memphis to complete her residency in Pediatrics at the University of Tennessee Health Sciences Center and Le Bonheur Children's Hospital. She completed her undergraduate studies at Haverford College in Pennsylvania. After completing training, she remained in Memphis and worked in the Le Bonheur Children's Hospital Emergency Department as a pediatrician. She then moved to Nashville to work at the Monroe Carell Jr. Children's Hospital at Vanderbilt in the Emergency Department Fast Track and After-Hours Clinics. Dr. Bartek transitioned to primary care pediatrics at Pediatric Associates of Davidson County for several years before returning to the University of Tennessee Health Science Center in Memphis to complete the Child and Adolescent Psychiatry Post-Pediatric Portal Fellowship program. Dr. Bartek's primary clinical focus is treating children and adolescents.