Theresa Colberg, 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.

Jeanine Foley is a board-certified Psychiatric-Mental Health Nurse Practitioner (PMHNP-BC) with over a decade of experience in both inpatient and outpatient settings. She holds a Doctorate of Nursing Practice from the University of Colorado Denver, an MSN from Vanderbilt University, and a BS from Boston University. Her career includes service as an active duty PMHNP in the U.S. Air Force and roles in the VA and private psychiatric hospitals. She also serves as Adjunct Clinical Faculty for a PMHNP graduate program.

Jeanine believes in patient-centered care built on trust, collaboration, and respect for each individual’s life story. She integrates medication management with therapeutic techniques and creates a safe, inclusive space that is trauma-informed and aligned with each patient’s values. Jeanine emphasizes genuine connection and strives to help clients explore root causes of distress—not just manage symptoms.

Jeanine begins with a comprehensive, collaborative assessment of each patient’s medical, psychiatric, and psychosocial history. She partners with patients to develop flexible, personalized treatment plans that support holistic mental health. Her approach combines psychopharmacologic and psychotherapeutic interventions, continuously adjusting plans based on feedback and progress.

Dr. Richard Rise has created a successful career as a psychiatrist over the past 30 years. He has participated in a variety of treatment settings and has developed a wealth of experience at both prescribing medications, providing therapy, counseling, and even coaching. He takes an individual approach to treating others, recognizing individuals as unique and worthy of love, respect, and acceptance. He is compassionate, non-judgmental, and truly enjoys helping others. He tends to gravitate towards a combination of medication management (if indicated) and psychotherapy where he treats all facets of the individual. Dr. Rise believes that we are all unique and should be treated as such. He spent most of his career in private practice until deciding to retire in 2014. After this he spent the next 3 1/2 years, reading, studying, traveling, and spending time with his loved ones. In 2018 he was offered a position as a consultant overseeing Ketamine infusion therapy for treating treatment-resistant depression. When the pandemic hit in March of 2020, Dr. Rise was asked to assist a local psychiatric hospital deal with the unique and often deadly consequences of the virus. This proved to be a wonderful opportunity for personal growth and to improve the quality of life of many others. After working at the hospital for the 2 years, Dr. Rise joined Talkiatry to continue providing high-quality psychiatric care to others in a very loving, supportive, creative, and collaborative environment.

Dr. Austin Lin is a double board-certified adult and addiction psychiatrist who has been in practice for over 9 years. At the center of Dr. Lin's clinical approach is a strong emphasis on establishing trust and using a collaborative approach to help patients develop an individualized and cohesive plan so that they are able to achieve their goals. Dr. Lin's practice focuses on medication management. Typically, he offers this in conjunction with supportive therapy, motivational interviewing, and/or cognitive behavioral therapy in 30-minute follow-up visits. Occasionally, Dr. Lin may recommend that additional therapy is needed and ask that you bring a therapist into your care team in order to provide the best outcome. Dr. Lin received his medical degree from St. George's University School of Medicine. He went on to complete his residency in psychiatry at Harvard South Shore, an affiliate of Harvard Medical School, where he served as Chief Resident and earned his 360° Professionalism award. He then had additional training in Addiction Psychiatry through his fellowship at the University of Texas Southwestern Medical Center. After completing training, Dr. Lin has worked as an Addiction Psychiatrist and Director of Adult Services in the Trauma and Resilience Center (TRC) at the University of Texas Health Science Center at Houston (UTHealth). He specialized in treating patients with a history of depression, anxiety, trauma, and substance use disorders. Dr. Lin has held an academic appointment at UTHealth, and he has spent his professional career supervising and teaching medical students and psychiatry residents.

Dr. Avjola Hoxha, MD, has experience practicing in both outpatient and inpatient settings. She earned her medical degree from the University of South Carolina School of Medicine and completed her psychiatry residency and Child and Adolescent fellowship at the University of Florida. She is board-certified and passionate about providing comprehensive, patient-centered care.

Dr. Hoxha values open communication and works collaboratively with patients to set individualized treatment goals. She creates a warm, supportive environment where patients feel heard, respected, and empowered throughout their care.

During the initial session, Dr. Hoxha thoroughly explores each patient’s history, concerns, and goals. She ensures patients fully understand treatment options and develops individualized plans aligned with their goals, always respecting patient autonomy and fostering a collaborative approach to care.

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Background and credentials

Dr. Nilesh Tannu is a board-certified psychiatrist by the American Board of Psychiatry and Neurology. He earned his medical degree from B.J. Medical College in Pune and completed his adult psychiatry residency at the University of Texas Medical School at Houston, where he served as chief resident. During his training, he received awards from the Society of Biological Psychiatry, the American Academy of Addiction Psychiatry, and the American Psychiatric Institute for Research and Education. He has been practicing General Psychiatry and Consultation-Liaison Psychiatry for the past seven years at Texas Medical Center in Houston, Texas. Additionally, he has served as an assistant professor of psychiatry at the Texas Medical Center, working at UT Physicians Clinics and Memorial Hermann Hospital. He is also a member of the Editorial Board for BMC Genomics Journal.

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Treatment approach

Dr. Tannu follows the bio-psycho-social model to provide evidence-based psychopharmacologic treatment. He integrates supportive therapy and cognitive-behavioral therapy (CBT) modalities into his practice to create personalized and comprehensive treatment plans. He is committed to mental health care, education, and helping patients achieve optimal functioning in their personal and professional lives. His clinical expertise includes ADHD, anxiety disorders, depressive disorders, bipolar disorder, psychotic disorders, insomnia, eating disorders, and complex medical comorbidities.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive assessment where Dr. Tannu takes the time to understand their symptoms, treatment history, and personal goals. He employs a collaborative approach to develop a tailored treatment plan that may include medication management and therapy interventions. His focus is on evidence-based care, ensuring that patients receive treatments that are scientifically backed and aligned with their individual needs.

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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.

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