Tiffany Reilly, LMHC

Dr. Pereira is a board-certified adult psychiatrist who is dedicated to providing compassionate care for a wide range of mental health concerns. He received his Bachelor of Arts from Harvard University and his medical degree from The Donald and Barbara Zucker School of Medicine at Hofstra/Northwell, where he graduated with the Department of Psychiatry's award of distinction. He went on to complete his psychiatric residency training at Northwell Health's Zucker Hillside Hospital, with a specialization in the assessment and treatment of obsessive compulsive disorder and related conditions. Dr. Pereira's clinical approach emphasizes building trust with his patients and working collaboratively to develop an individualized treatment plan. He uses medication management along with cognitive behavioral therapy, exposure and response prevention, psychodynamic psychotherapy, interpersonal psychotherapy, and supportive therapy as needed. His practice treats a wide range of conditions, including depression, anxiety, OCD, family and relationship struggles, and other mental health issues. He has been trained in a wide range of settings including inpatient, outpatient, emergency departments, and behavioral health crisis centers. He also has experience teaching and supervising medical students and psychiatry residents.

Dr. Parrish is a board-certified adult psychiatrist with extensive experience in community psychiatry, academic psychiatry, veterans' mental health, and correctional psychiatry. She completed medical school and adult psychiatry residency at University of Miami/Jackson Memorial Hospital and a Master of Public Health from University of Virginia. She graduated with honors from University of Southern California with a Bachelor of Arts in Communication.  

Dr. Parrish is a member of the prestigious Alpha Omega Alpha national medical honor society. She has also produced over 20 peer-reviewed papers and posters.  

Dr. Parrish has worked with geriatric patients, individuals who identify as LGBTQ+, patients with serious mental illness, women with perinatal and postpartum needs, individuals with cancer, patients with co-occurring substance use disorders, and combat veterans.  

Dr. Parrish takes a patient-centered collaborative approach to tailor treatment plans to meet each individual's goals. Her technique promotes overall wellness. Utilizing her expertise in diagnosis and pharmacology, she optimizes care, monitors progress and ensures treatment success. Dr. Parrish incorporates behavioral activation techniques to promote improved mental health and overall well-being, with the ultimate goal of helping patients feel their best.

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. George Han is an adult psychiatrist who earned his undergraduate degree in Materials Science and NanoEngineering from Rice University, his medical degree from the University of Texas Southwestern Medical Center, and completed his psychiatry residency training at the University of Mississippi Medical Center. Now based in New York City, Dr. Han brings a broad geographic and cultural perspective, having previously lived in China, Canada, Illinois, California, Texas, and Mississippi.  

Drawing on these diverse experiences, Dr. Han is committed to providing culturally responsive and identity-affirming care, with a particular focus on immigrant communities, LGBTQIA+ individuals, and high-performance professionals. He uses a collaborative, narrative-informed approach that centers each patient’s lived experience and values. His integrative method helps individuals recognize emotional and behavioral patterns shaped by cultural, relational, and systemic factors.  

In clinical practice, Dr. Han combines evidence-based medication management with appropriate psychotherapy techniques and elements of executive coaching. This comprehensive approach supports patients navigating high-pressure environments, helping them achieve greater clarity, resilience, and confidence across both personal and professional domains

Dr. Debrey is board-certified in adult psychiatry. Her approach is client-centered, individualized, and collaborative. She focuses on building a strong therapeutic alliance with each client to work towards achieving enhanced functioning and meaning in their lives. She works with individuals experiencing a wide range of mental health concerns, including depression and other mood concerns, bipolar spectrum illnesses, OCD, PTSD, anxiety disorders, and substance use disorders. Though she specializes in medication management, she believes in an integrative and comprehensive treatment program that incorporates multiple aspects of an individual's health and wellness. Along with discussing physical health concerns, diet, exercise, personal connection, and stress management, she incorporates various therapeutic modalities, including CBT, DBT, ACT, and mindfulness, into her work. In some instances, Dr. Debrey may recommend more intensive psychotherapy with a collaborating therapist in order to help facilitate the best care possible. Dr. Debrey received her medical degree from Rush Medical College. She also holds a graduate degree in epidemiology from the Johns Hopkins Bloomberg School of Public Health. Following medical school, she completed her residency in psychiatry at Emory University School of Medicine. During her final year of residency, she served as chief resident at Grady Memorial Hospital. Prior to joining Talkiatry, Dr. Debrey was an assistant professor at Emory University Department of Psychiatry, where she worked as an attending psychiatrist at Grady Behavioral Health. While at Grady, Dr. Debrey worked primarily as a community psychiatrist with a focus on working with individuals experiencing psychosis. She also frequently worked on the inpatient psychiatry service at Grady. As an Emory faculty member, teaching and mentorship were an especially meaningful part of her work.‍

Dr. Varma grew up in an immigrant family surrounded by aspiring doctors, and her passion for understanding the human mind and behavior blossomed early. This curiosity led her to pursue extensive medical training abroad, beginning at Kasturba Medical College in Southern India, followed by clerkships at the University of the West Indies in Trinidad and Tobago. She completed her Adult psychiatry residency at the University of Florida in Gainesville and specialized further with a child/adolescent fellowship at Brookdale University Hospital in Brooklyn, NY.

Dr. Varma believes in a holistic, integrative approach to mental health. Her philosophy centers on identifying the root causes of ailments rather than merely addressing symptoms. She views mental health care as a partnership, where the mind, body, and spirit work together to achieve wellness. Dr. Varma is committed to fostering a safe, confidential therapeutic alliance to help you explore your potential for healing.

Dr. Varma embraces integrative psychiatry, which combines the best of conventional Western medicine with complementary approaches. This involves a comprehensive biopsychosocial assessment tailored to each individual, incorporating psychopharmacology alongside lifestyle adjustments in diet, movement, and breathwork. She collaborates with therapists and other professionals to create a well-rounded treatment plan that honors your unique journey.