Diane Lewis, MD

Dr. Laura Rosas is an adult psychiatrist at Talkiatry who practices compassionate, patient-centered care. As a multiracial psychiatrist, she serves diverse communities and focuses on treatment plans that respect each patient's background. She treats various diagnoses, including trauma, mood, personality, and eating disorders, with a particular interest in the student and LGBTQ+ communities. Using a range of skills and interventions from psychodynamic therapy, cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), acceptance and commitment therapy (ACT), and mentalization-based therapy (MBT), Dr. Rosas prioritizes a collaborative approach. She ensures patients are actively involved in shaping their treatment, including decisions about medication and supplements. This cooperation allows for personalized care plans that align with each patient's needs, values, and goals. Recognizing that cultural influences, substance use, financial constraints, and other societal factors impact mental health, Dr. Rosas examines these personal aspects to provide effective, holistic care in a non-judgmental space. She graduated from McGovern Medical School (UT Houston) and completed her residency in psychiatry at the University of Chicago. She aims to make healthcare more accessible and affordable, driving systemic changes in mental health care.

Mu Xu, MD is a Psychiatrist at Talkiatry. He obtained his medical doctorate degree from the University of Chicago Pritzker School of Medicine and PhD from New York University. He completed his psychiatry residency at New York University. Dr Xu is licensed to practice in California, New York, New Jersey, Connecticut, Pennsylvania, and Maryland. Dr. Xu provides both medication management for a variety of psychiatric conditions. Dr. Xu is fluent in English and Mandarin. Dr. Xu is a general adult psychiatrist specializing in medication management. He values building strong connections with patients from all walks of life and tailoring treatments to their unique needs. His working style is characterized by attentive listening, detailed follow-up questions, and straightforward communication, fostering a collaborative and empathetic environment.

*THIS PROVIDER CANNOT PRESCRIBE CONTROLLED SUBSTANCES FOR NH PATIENTS* Dr. Peter Truong is a board-certified psychiatrist trained in Adult Psychiatry. He received his medical degree from FIU Herbert Wertheim College of Medicine in Miami, Florida, and completed his residency training at Cambridge Health Alliance – Harvard Medical School.

Dr. Truong treats each patient with a holistic, evidence-based approach that incorporates psychopharmacological and psychotherapeutic best practices. His priority is to build a safe and trusting working relationship with each patient, keeping in mind their unique biological, psychological, social, and spiritual contexts.

Dr. Truong has extensive experience treating depression, anxiety, ADHD, and trauma-related disorders. He incorporates therapy modalities such as supportive, psychodynamic, CBT, and EFT. Other professional interests include LGBTQIA and college mental health, mindfulness, and interventional psychiatry. He has worked with individuals with diverse backgrounds from all walks of life.

Serena Mirchandani is a board-certified psychiatric nurse practitioner with extensive experience treating serious mental illnesses such as bipolar disorder and schizophrenia spectrum disorders. She also provides care for individuals with depression, anxiety, PTSD, OCD, autism spectrum disorder, and substance use disorders. Serena earned both a Master of Science in Nursing and a Doctorate in Nursing Practice in psychiatry from Columbia University. She completed a Nurse Practitioner Fellowship at Community Healthcare Network and worked at Bellevue Hospital for 2.5 years, providing care on an inpatient psychiatric unit for a diverse, underserved population.

Serena’s approach is grounded in open communication, evidence-based care, and deep respect for each patient’s lived experience. She prioritizes a collaborative, safe space where individuals feel heard, respected, and empowered. Her holistic style supports honest conversation, transparency in treatment options, and patient-centered goals.

Serena begins with a comprehensive assessment to understand each patient's full story—biological, psychological, and social. She then partners with patients to develop personalized, evidence-based treatment plans that align with their values and goals. She emphasizes education, transparency, and regular follow-up to support ongoing progress and informed decision-making.

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. Nelson is a board-certified psychiatrist who attended the University of Iowa Medical School and completed her psychiatry residency and child and adolescent psychiatry fellowship at Walter Reed National Military Medical Center.  She has extensive experience treating active-duty service members, family members of active duty and the veteran population.  She feels comfortable working with a wide range of age groups and enjoys treating challenges with anxiety, mood, sleep, and concentration.

Dr. Nelson believes that the key to success in mental health care is being able to establish a trusting and open relationship between psychiatrist and patient.

While initial sessions include the need to gather background information about the patient overall as well as the symptoms of concern, subsequent sessions are focused on learning the impact of the treatment.

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