Swagato Bhattacharyya, DO

Tulsie Patel is a board certified psychiatrist who treats adults. She graduated Cum Laude from Drexel University and attended medical school at the University of Miami Miller School of Medicine. She completed her psychiatry residency at the University of Texas Southwestern (UTSW) and was elected to serve as Chief Resident during her final year of training. She has worked as an outpatient psychiatrist in California and Florida and has experience in medication management, individual and group therapy, and transcranial magnetic stimulation (TMS). She is dedicated to constantly learning and has previously published numerous articles and book chapters on various topics in the fields of psychiatry, dermatology, and psychodermatology. She is also very passionate about education and medical journalism. During her residency training, she worked at ABC News in New York City as a member of their medical unit. She provided consultation on medical stories for programs including Good Morning America and World News with David Muir. She has published a number of articles on the websites for ABC News and Good Morning America. She also has experience presenting as an on-air expert for ABC News and for mental health podcasts. She is committed to continuously evolving as a provider in order to provide the best care for her patients. Her focus is always to provide patient-centered care by prioritizing open communication and collaboration with her patients. She has experience providing care for a variety of psychiatric illnesses. The conditions she treats include but are not limited to depression, anxiety, panic disorder, OCD, PTSD, and ADHD.

Dr. Nida Khan is a board-certified psychiatrist starting her post-graduate practice with Talkiatry. She completed her undergraduate degree in Biochemistry at Smith College, earned her medical degree at New York Institute of Technology College of Osteopathic Medicine and completed her psychiatry residency training at Northwell Health. During her residency, she was involved in resident leadership and education, serving as academic chief resident during her third year of training. Dr. Khan's practice focuses on a holistic, patient-centered approach. Her practice is rooted in evidence-based practices and focuses on providing medication management during 30-minute visits along with supportive therapy to meet the unique needs of individuals under her care. Occasionally, she may believe that additional therapy is needed and may recommend a therapist be brought into your care team for optimal care.

Severine Dondina, PMHNP-BC, is a board-certified psychiatric nurse practitioner with licensure in Washington and Florida. She holds a Master of Science in Nursing from the University of Alabama at Birmingham and graduated summa cum laude with dual bachelor’s degrees in nursing and biomedical science. Her background spans outpatient, community, forensic, and crisis psychiatry, including leadership roles with Florida’s Assertive Community Treatment (FACT) and Multi-Disciplinary Forensic Teams.

Currently serving patients in Washington, Severine treats adults with ADHD, anxiety, depression, PTSD, and bipolar disorder. She brings a trauma-informed, strengths-based approach to care and is deeply committed to creating affirming spaces for LGBTQ+ and gender-diverse individuals. Her clinical style combines evidence-based medication management with warm, collaborative support.

Trilingual in English, French, and Spanish, Severine is known for her cultural sensitivity, clinical rigor, and authentic presence. She approaches each patient with curiosity, humility, and respect—believing healing begins with connection.

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Dr. Robben proudly served in the U.S. Air Force and has been practicing psychiatry for 17 years. He is happy to have completed his medical school education, as well as his residency in general psychiatry and fellowship in addiction psychiatry, all at the University of South Florida in Tampa. Dr. Robben is board certified in both general psychiatry and addiction psychiatry. He has experience in many roles over the span of his career to include working with Veterans diagnosed with posttraumatic stress disorder and substance use disorders, managing specialty clinics for patients with treatment-resistant depression, and working in general outpatient psychiatry clinics, as well as emergency and inpatient psychiatric settings. Dr. Robben also previously served as the Training Director for the University of South Florida Morsani College

of Medicine Addiction Psychiatry Fellowship Program. He is currently the Medical Director at a residential substance use disorder treatment center in Florida. Additionally, Dr. Robben is a certified Medical Review Officer and has additional qualifications in transcranial magnetic stimulation (TMS) and Spravato.

(esketamine). Dr. Robben has been voted as Addiction Medicine "Top Doctor" in Tampa Bay, FL by physicians for 8 of the last 9 years. Dr. Robben specializes in treating depression, bipolar disorder, anxiety, PTSD, OCD, ADHD and substance use disorders.

Dr. Robben uses a supportive, patient-centered approach, taking into account each individual's personal values and goals when formulating a treatment plan. He educates patients on the most up to date scientific evidence and provides multiple treatment options to help each person determine the most appropriate plan for them.  

Dr. Robben believes in a collaborative and holistic approach to working with his patients. Dr. Robben spends a significant amount of time educating his patients on all forms of mental health treatment, from medications and psychotherapy, to nutrition, exercise, meditation and sleep hygiene. What works well for

One person may not work well for another person. Having options and understanding the potential benefits and risks of each treatment empowers patients to take an active role in their own healthcare.

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Dr. Sahadevan took an adventurous path to Talkiatry. After perhaps thinking a little too hard about Intro to Philosophy in college - "the unexamined life is not worth living” - he first used his chemistry degree to work in pharmaceutical research. He changed course, working in computer network engineering, before deciding to find a more meaningful path. He worked as an EMT, then earned a Master's in Physiology before finally landing in medical school at Ohio State. Finding a surprising interest in psychiatry, he stayed at Ohio State for residency, and then a fellowship in forensic psychiatry. He is board-certified in both Psychiatry and Forensic Psychiatry. He previously worked as a forensic psychiatrist and evaluator at Ohio's maximum-security state psychiatric facility, as an attending psychiatrist running an inpatient unit for violent or dangerous patients, performing court-ordered evaluations, writing reports, and testifying when necessary. Dr. Sahadevan has also worked as a consultation-liaison psychiatrist, performing psychiatric consults at several general hospitals in Central Ohio's largest hospital system. He found great enjoyment in teaching successive generations of residents and medical students, serving as an adjunct faculty member at Ohio State, Ohio University, Wright State, and OhioHealth Riverside Methodist Hospital. He is excited for the next chapter of his journey, exploring another area of psychiatry at Talkiatry!

Dr. Anh Tran completed undergraduate studies, medical school, and psychiatry residency training at Saint Louis University. Following training, Dr. Tran joined the Department of Veterans Affairs, where they provided care in an outpatient setting with both telehealth and in-person services. With this experience, Dr. Tran brings a strong clinical background and a dedication to supporting patients through accessible and personalized psychiatric care.

New patients can expect Dr. Tran to respect their time and autonomy while working together to establish shared treatment goals. Dr. Tran values open candor and punctuality, aiming to create a therapeutic relationship grounded in mutual trust, transparency, and collaboration.

During the first visit, Dr. Tran takes a comprehensive history and background to determine if the therapeutic relationship is the right fit for both patient and provider. Ongoing care typically involves monthly appointments for medication management until stability is achieved, after which visits may shift to quarterly follow-ups. This structured yet flexible approach supports continuity and long-term well-being.