Walter Piddoubny, MD

Dr. Megan Marumoto provides holistic and personalized care as an integrative psychiatrist board-certified in General Psychiatry, Child & Adolescent Psychiatry, Integrative Medicine, and Lifestyle Medicine. She takes a root cause approach to treating mental health conditions as a certified Functional Medicine practitioner. Dr. Marumoto treats a wide range of mental health conditions in children, adolescents, and young adults, including ADHD, anxiety, depression, phobias, OCD, and trauma-related conditions. Patients may expect a comprehensive assessment with evidence-based treatment focusing on nutrition and healthy lifestyle interventions as well as medication management in 20�30-minute sessions. She enjoys working collaboratively with therapists and health coaches to achieve the best outcomes. She also provides supportive therapy and other therapies when indicated. She received her medical degree from the John A Burns School of Medicine and completed her Psychiatry Residency and Child & Adolescent Psychiatry fellowship at the University of Hawaii. Wishing to provide comprehensive care beyond medication management and therapy, Dr. Marumoto completed a second fellowship in Integrative Medicine at the University of Arizona. She has over 20 years of clinical experience working with military and civilian populations.

Dr. Madiha Halim, MD, has experience practicing psychiatry in both Pakistan and the United States, giving her a well-rounded understanding of mental health across diverse cultures. She earned her medical degree from Army Medical College in Pakistan and completed her psychiatry residency at the University of North Dakota School of Medicine and Health Sciences, where she also served as Chief Resident Physician. In this role, she gained extensive academic and administrative experience while mentoring junior residents and contributing to program development.

Dr. Halim values open communication and strives to create a therapeutic environment rooted in empathy, warmth, and respect. She collaborates with patients to develop individualized treatment plans that integrate cultural, biological, psychological, and social factors. While her primary focus is on medication management, she often incorporates supportive therapy, cognitive behavioral therapy (CBT), dialectical behavior therapy (DBT), and motivational interviewing for a holistic and patient-centered approach.

Dr. Halim begins by taking time to understand each patient’s background, concerns, and goals during the initial session. She emphasizes collaboration, ensuring patients are informed and involved in their treatment decisions. Her process fosters empowerment and partnership, helping patients gain insight, build coping strategies, and achieve long-term mental wellness.

Dr. Tyler Alderette is a board-certified psychiatrist with experience treating patients in outpatient and telehealth settings. He earned his medical degree from the American University of the Caribbean School of Medicine and completed his psychiatry residency at Larkin Community Hospital in Miami, Florida. His clinical interests include depression, bipolar disorder, anxiety disorders, ADHD, trauma-related conditions, psychotic disorders, and substance use concerns. Dr. Alderette provides evidence-based medication management integrated with psychotherapy-informed care and is committed to staying current with advances in psychiatric treatment to ensure safe and effective care.

Dr. Alderette strives to create a warm, nonjudgmental, and respectful environment where patients feel comfortable sharing their experiences. His approach is collaborative and patient-centered, working closely with patients to set clear goals and select treatments aligned with their values. He takes a whole-person approach, considering mental health alongside sleep, relationships, medical conditions, culture, and life stressors, and provides affirming, inclusive care for patients of all ages and backgrounds.

Dr. Alderette begins with a comprehensive evaluation to understand each patient’s history, current concerns, and personal goals. Treatment plans are individualized and may include medication management along with supportive therapy, cognitive behavioral therapy (CBT), and motivational interviewing. Follow-up visits focus on progress, side effect management, and ongoing adjustments, with an emphasis on education, open dialogue, and long-term stability.

Dr. Tsujimoto-Ryzewski is a board-certified adult psychiatrist. She received her medical degree from the University of Nevada, Reno School of Medicine. She completed her residency at the University of Nevada, Reno School of Medicine, where she served as a chief resident during her last year of training. Dr. Tsujimoto-Ryzewski has treated patients with a wide variety of diagnoses both during her residency and after her training while working at a busy private practice clinic as well as for the Veterans Administration. Dr Tsujimoto-Ryzewski focuses on medication management and supportive psychotherapy. If she feels that additional therapy is needed, she will ask that you bring in a therapist as part of the treatment team. Dr. Tsujimoto-Ryzewski will work collaboratively with you in a caring environment to assist you in reaching your goals.

Dr. Satveet Khela is a board certified physician specializing in adult psychiatry. She has been practicing since 2021. In addition to focusing on medication management, Dr. Khela's practice also prioritizes a whole person approach, incorporating aspects of nutrition, lifestyle, mindfulness, and supportive or brief cognitive behavioral therapy into the treatment plan. Occasionally, Dr. Khela may believe that additional therapy is also needed and ask that you see a separate therapist to provide the best outcome. Dr. Khela received her undergraduate degree from the University of California, Berkeley and her medical degree from A.T. Still University. She completed her residency at University of California San Francisco Fresno, where she served as chief resident in her final year. After completing her training, Dr. Khela worked with medically ill patients with co-morbid psychiatric illnesses. Throughout her career, Dr. Khela has worked with a diverse set of patients in various stages of their lives. Dr. Khela focuses on treating patients with anxiety, depression, PTSD, bipolar, OCD, and other mental health issues. She believes in empowering her patients to be active players in their treatment plans to facilitate the best care possible.

Background and credentials

Dr. Sinner is board-certified in Psychiatry. He completed his psychiatry residency training at Dartmouth-Hitchcock Medical Center. With over 14 years of experience, he has worked in a variety of settings, including five years in inpatient psychiatry in Vermont, where he served as Medical Director for a state hospital psychiatric unit and taught medical students. He then spent five years working in an outpatient community mental health center in Pennsylvania before transitioning to telepsychiatry, providing care to individuals in Pennsylvania, Florida, and New York.

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Treatment approach

Dr. Sinner employs a collaborative, patient-centered approach, tailoring treatment plans to meet each individual's specific needs. His practice integrates pharmacotherapy with cognitive behavioral therapy (CBT) and supportive therapy as needed. He specializes in treating a wide range of psychiatric conditions, including depression, bipolar disorder, anxiety, ADHD, neuropsychiatric disorders, developmental disorders, and personality disorders. His philosophy is to provide personalized care that makes a meaningful impact at different stages of a patient’s life.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive evaluation focused on understanding their mental health concerns, history, and treatment goals. Dr. Sinner takes a compassionate and collaborative approach, working closely with patients to create individualized treatment plans. He ensures that each patient receives a balanced and effective combination of medication management and therapeutic interventions suited to their unique 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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