Dennis Valerstain, MD

Dr. Crump is a board-certified psychiatrist at Talkiatry. She is from Kentucky and completed her undergraduate studies at Murray State University. She obtained her medical degree from University of Kentucky College of Medicine and completed her psychiatry residency training at University of Louisville School of Medicine. Afterwards, she completed a fellowship in child and adolescent psychiatry at Medical University of South Carolina.

Dr. Crump has experience in a wide range of diagnoses and patient populations, with particular interest in anxiety, depression, PTSD, substance use disorders as well as the child and adolescent, college, BIPOC, and LBGTQIA+ populations.

Dr. Crump believes in the importance of getting to know each patient as a whole and of understanding the unique experiences that bring them to treatment. She collaborates with her patients to create personalized treatment plans and considers both medication and non-medication options.

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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. Mattern is board certified in Adult psychiatry. Her approach to mental health is integrative, with the utilization of complementary and alternative treatments such as yoga, lifestyle changes, and nutritional interventions in addition to traditional medication management and therapy. Dr. Mattern prefers to focus on the overall health and well-being of an individual, rather than just treating symptoms.

Dr. Mattern’s practice focuses on medication management along with elements of therapy from different modalities, such as supportive and cognitive behavioral therapy that are patient-tailored.  Dr. Mattern understands the importance of psychotherapy and may ask to bring in a therapist into your treatment team to provide the best care and outcome. Her clinical interests include depression, bipolar disorder, anxiety disorders, post-traumatic stress disorder, panic disorder, OCD, and ADHD.

After completing her undergraduate degree in Biology at Ohio Northern University, Dr. Mattern received her medical degree from Ohio University Heritage College of Osteopathic Medicine. She went on to complete her residency in psychiatry at The Ohio State University Medical Center.  She also completed yoga teacher training and presented nationally at the APA in 2019 regarding the benefits of yoga for depression.  Dr. Mattern is a member of the American Psychiatric Association, Ohio Psychiatric Physician’s Association, and Psychiatry Society of Central Ohio.

Dr. Mattern is board certified in Adult psychiatry.  Her approach to mental health is integrative, with utilization of complementary and alternative treatments such as yoga, lifestyle changes, and nutritional interventions in addition to traditional medication management and therapy. Dr. Mattern prefers to focus on the overall health and well-being of an individual, rather than just treating symptoms.  Dr. Mattern’s practice focuses on medication management along with elements of therapy.

Dr. Sarita Sharma is a board-certified adult psychiatrist dedicated to providing personalized psychiatric treatment that addresses the mind, body, and spirit for optimized health and healing. Born and raised in Toronto, Ontario, she earned her medical degree from Avalon University School of Medicine in Curacao and completed her residency at Southern Illinois University in Springfield, Illinois. Dr. Sharma has extensive experience working with underserved patients from diverse backgrounds and with varying severities of psychiatric disorders. She has a genuine interest in treating mood and anxiety disorders like depression and anxiety. She views medication as one of many tools to aid patients, emphasizing the importance of therapy and lifestyle changes aligned with each patient's goals. Believing in a holistic approach, she incorporates mindfulness techniques, lifestyle optimization (sleep, diet, movement), Dialectical Behavioral Therapy (DBT), Cognitive Behavioral Therapy (CBT), and Acceptance and Commitment Therapy (ACT) to target the root causes of unease. She enjoys helping patients navigate meaning and purpose, relationship dynamics, and self-image. With a sincere, direct, and practical approach, Dr. Sharma values empathy and understanding as vital components of effective care. In her free time, she enjoys spontaneous adventures, connecting with fellow human beings, and just being in nature. She is committed to helping you achieve a balanced, fulfilling life.

Dr. Taylor Brady, MD, MBA, is a psychiatrist who found his passion for mental health care through the power of listening to people’s stories. His background includes medical training at the University of Utah, leadership as Student Body President, and psychiatric residency at the University of Texas, where he served as Inpatient Chief Resident and received awards for both clinical excellence and medical education. he brings that same commitment and curiosity to his work with patients. Outside of clinical care, he is deeply interested in narrative medicine—the way our personal stories shape our mental health—and uses that lens to help patients find meaning, clarity, and strength in their own journeys.

As a psychiatrist, Dr. Taylor Brady approach is rooted in compassion, collaboration, and respect for your unique story. He views mental health treatment as a partnership—one where psychotherapy and medication can work together to support your growth and healing. His goal is to help you uncover the patterns and behaviors that may be holding you back, and empower you to make meaningful, sustainable change. He encourages patients to take ownership of their mental health, and he is here to provide the tools, guidance, and support you need along the way.

We’ll begin by taking the time to understand your story, your goals, and what brings you to treatment. The first few sessions focus on building trust and identifying the areas where you’d like to see change. From there, we’ll collaboratively develop a treatment plan that may include psychotherapy, medication, or both—always tailored to your needs. He draws from multiple therapeutic approaches, including Cognitive Behavioral Therapy (CBT), Cognitive Processing Therapy (CPT), and Psychodynamic Psychotherapy, to provide care that fits you, not the other way around. Throughout our work, he'll support you in developing insight, resilience, and confidence in managing your mental health.

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Dr. Parker Loy holds the position of Staff Psychiatrist at Talkiatry. After finishing undergraduate studies at the University of Tennessee, Knoxville, he completed the University of Tennessee Health Science Center (UTHSC) Master of Science program before enrolling in medical school at the same institution. After graduating from medical school, he completed his residency at UTHSC, during which he trained in a variety of inpatient and outpatient settings and treated a broad spectrum of mental health conditions. He enjoys treating a wide variety of conditions, including mood and anxiety disorders. Therapeutic techniques are incorporated into medication management visits when indicated, and collaboration with therapists may also be recommended.