Samuel Russell, MD

Steven Warren, PMHNP, has over 25 years of psychiatric nursing experience in both inpatient and outpatient settings. He has provided extensive individual and group psychotherapy and education, and since 2017, has offered medication management and brief therapy in a collaborative community mental health setting. Steven earned his Bachelor of Nursing in 2011 and Master of Nursing in 2017 from Indiana University, and is ANCC board-certified as a Psychiatric Mental Health Nurse Practitioner.

Steven values open and honest communication, working directly with patients to set clear, achievable treatment goals. He is dedicated to ensuring each person he works with feels heard, respected, and supported throughout their mental health journey. His approach emphasizes collaboration, empathy, and trust.

During the first session, Steven takes time to understand each patient’s history, concerns, and goals. He develops individualized treatment plans that reflect patient values, adapting them as needs evolve. Through a strong therapeutic relationship, he provides guidance and support to help patients achieve meaningful and lasting progress.

Background  and credentials    

Dr. Christa DeFries is a board-certified Adult Psychiatrist. She earned her  medical degree from UT Southwestern Medical School in Dallas, Texas, and  completed her residency in Adult Psychiatry at Baylor Scott & White in  Temple, Texas. Following residency, Dr. DeFries gained additional experience  treating homeless and formerly homeless populations in New York City,  particularly focusing on individuals with histories of trauma and substance  addiction, prior to joining Talkiatry.    

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Treatment approach    

Dr. DeFries practices Adult Psychiatry, employing an integrative treatment  approach combining medication management, psychotherapeutic methods, and  lifestyle modifications. She recognizes that each patient benefits from a  personalized mix of these three aspects of care. Dr. DeFries specializes in  treating diverse psychiatric conditions, including those related to trauma,  substance addictions, and various mental health disorders.    

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What you can expect in a first visit    

In a first visit with Dr. DeFries, patients can expect a comprehensive  evaluation aimed at understanding their individual mental health history,  specific concerns, and overall treatment goals. Dr. DeFries emphasizes an  individualized approach, carefully exploring the best combination of  medication, therapy, and lifestyle adjustments tailored specifically to each  patient's needs. Patients can anticipate an empathetic and collaborative  environment focused on their personal experiences and goals.    

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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.

Dr. Julia Trice, MD, has experience across outpatient, intensive outpatient, residential, and inpatient settings. She earned her medical degree and completed psychiatry residency and child and adolescent fellowship training at accredited institutions, developing expertise in comprehensive, evidence-based care. She is double board-certified in adult psychiatry and child and adolescent psychiatry.

Dr. Trice values openness, collaboration, and clear communication. She builds strong therapeutic rapport by creating a warm, supportive space where patients feel heard and respected. When working with children and adolescents, she ensures they understand that their voice and perspective are essential to shaping treatment and understanding their symptoms.

Dr. Trice begins by thoroughly understanding each patient’s history, concerns, and goals. She uses this foundation to guide treatment from the first session onward. Throughout care, she develops individualized, goal-aligned treatment plans that integrate evidence-based approaches tailored to each patient’s unique needs.

Dr. Helms is a graduate of the University of Arizona College of Medicine. He completed his General Psychiatry and Child/Adolescent fellowship training at the University of Texas, Health Science Center at San Antonio. He has over 25 years of experience as a psychiatrist treating patients of all ages (child, adolescent, and adult�including geriatric) while working in a multitude of treatment settings including outpatient clinics and psychiatric hospitals. He also has several years of experience working as a psychiatric consultant for medical-surgical hospitals, seeing an extensive variety of patients on all floors of the hospital from mother-baby to pediatrics, as well as adult patients on the medical and surgical floors. Dr. Helms takes with him into each patient encounter, his wide breadth of experience and his genuine care and concern for each and every individual patient. He provides both medication treatment and talk therapy. He understands that many patients greatly benefit from either short or long term medication treatment; however, he also understands that talk therapy can oftentimes lead to significant, long lasting positive change, personal growth, and improvements in occupational and relationship success. Moreover, patients will always find Dr. Helms encouraging and supportive as they search for greater meaning and purpose in their lives.

Dr. Mark Varela is a board-certified psychiatrist joining Talkiatry directly out of residency. He focuses primarily on medication management, often accompanied by brief cognitive, motivational, or supportive therapy. He may request that you also meet with a therapist regularly for your benefit. Dr. Varela received his medical degree and general psychiatric residency training both from Texas Tech University Health Sciences Center in West Texas. He treats young adults and adults with a wide variety of mental health concerns, including ADHD, mood disorders, anxiety, OCD, and PTSD.

Dr. Kerstin Asquith is a board-certified psychiatrist at Talkiatry. She has extensive experience working with a wide range of diagnoses and patient populations, with particular interest in treating depression, anxiety, PTSD, and OCD. She also has additional training in college mental health. Dr. Asquith believes in the importance of getting to know each of her patients and the unique issues that bring them into treatment. Her approach involves collaborating with patients to create personalized treatment plans and considering both medication and non-medication methods.

Dr. Asquith is from California and completed her undergraduate studies at the University of California, Davis. She obtained her medical degree from Creighton University School of Medicine and then trained at Stanford University's Adult Psychiatry Residency Program. She subsequently completed a fellowship in student mental health at Stanford University. Most recently, Dr. Asquith worked as an outpatient psychiatrist at The Permanente Medical Group. In her free time, she enjoys traveling, trying new foods, and spending time with friends and family.