George Ellis, MD

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. Tim Kelly is a board-certified psychiatrist who specializes in adult psychiatry. His practice focuses primarily on medication management but often incorporates aspects of supportive, psychodynamic, and cognitive behavioral therapies into his 30-minute follow-up visits. Dr. Kelly also strongly believes in working in conjunction with therapists to achieve the best possible outcomes for his patients. He feels it is important to create strong therapeutic relationships with his patients in order to help patients achieve their treatment goals. Dr. Kelly received his undergraduate degrees in Human Biology and Spanish from Michigan State University. He then completed his medical education and a master's degree in medical humanities and bioethics at Northwestern University. He completed his adult psychiatry residency at the University of Washington. He has authored papers in medical education and LGBTQ advocacy. Dr. Kelly now lives in Pennsylvania with his husband, Kevin, and three dogs: Taquito, Fergie and Mimi. While Dr. Kelly treats adults of all backgrounds, he has a particular interest in working with young adults, students, and LGBTQ individuals.‍

Dr. Maxim Chasanov, MD, brings over 30 years of experience in both inpatient and outpatient psychiatric settings. He has held leadership roles, including serving as Medical Director across various clinical programs. Dr. Chasanov completed his undergraduate studies at the University of Chicago and earned his medical degree from Loyola University Stritch School of Medicine in Chicago, Illinois. He completed his residency at Loyola University Medical Center, where he was appointed chief resident during his final year.

Dr. Chasanov values open, honest communication and takes a collaborative approach to care. He partners with patients to identify clear treatment goals and uses symptom screener tools to objectively track progress. He strives to create a warm, supportive, and empathetic environment where patients feel heard, respected, and actively engaged in their treatment journey.

In the first session, Dr. Chasanov works to gain a thorough understanding of each patient’s history, current concerns, and long-term goals. He then develops a personalized treatment plan aligned with those goals. His approach balances symptom improvement with medication tolerability and incorporates therapies that further enhance outcomes.

Dr. Jonathan Bui is an MD who earned his medical degree from the University of Maryland, School of Medicine, and completed his residency at Walter Reed National Military Medical Center. He served as a military psychiatrist for eight years, including deployment to Iraq, and was honorably discharged as a Major. He has experience in both outpatient and inpatient care, with a strong focus on compassionate, patient-centered treatment.

Dr. Bui creates a welcoming and supportive environment where patients feel heard and understood. He collaborates with patients to set achievable treatment goals and draws on extensive experience in treating a variety of mental illnesses, including post-traumatic stress disorder, to ensure the best outcomes.

Dr. Bui begins by thoroughly reviewing a patient’s history to understand their background and concerns, helping to establish meaningful treatment goals. At follow-up appointments, he reviews progress, addresses any new issues, and adjusts care plans collaboratively to support long-term mental health and well-being.

Dr. Jacob T. Kannarkat is an adult psychiatrist. Dr. Kannarkat's practice focuses on medication management. In his visits, he uses an integrative approach, blending an empathic, problem-solving orientation with an understanding that the reasons for an individual's condition can be complex. He has experience dealing with many forms of mental illness and works collaboratively with his patients and their other treatment providers in making a plan for recovery. Dr. Kannarkat completed undergraduate studies at the University of Florida. After receiving his medical degree at the University of Miami Miller School of Medicine, Dr. Kannarkat continued for residency at the University of Miami/Jackson Health System. He ultimately completed his training as Chief of Psychiatric Emergency Services at Yale School of Medicine. Dr. Kannarkat has experience working with adults of all ages who are dealing with depression, anxiety, bipolar disorder, PTSD, substance use disorders, and many other conditions.‍

Dr. Dhaliwal is an integrative psychiatrist with an MPH, a 1-year fellowship through Psychiatry Redefined, as well in intensive inpatient and outpatient training. A Boston University School of Medicine graduate and former Chief Resident at FAU, she blends research-based care, emotional insight, and life optimization. She treats depression, bipolar, anxiety, ADHD, PTSD, substance use, and psychotic-spectrum disorders with a holistic, results-driven approach.

Dr. Dhaliwal works with individuals who feel stuck—functioning on the outside but "not like myself" inside. Her warm, structured, and research-driven approach combines medication when needed with integrative tools such as CBT, lifestyle changes, "24-hour approach", and a bio-psycho-social-spiritual lens. She focuses on root causes and helps individuals gain clarity, momentum, and purpose to function at their highest level across home, career, and life.

Dr. Dhaliwal begins with a 360-degree assessment exploring emotional patterns, routine, physical health, neurobiology, and values. Her 24-hour optimization model supports intentional living, clarity, and structure. She fine-tunes medications and augments with an integrative tools to enhance mood, resilience, and wellbeing. Her care is shaped by years in psychiatry and over a decade of coaching future physicians, researchers, and life coaches to reach their highest academic and career potential.