Maria Abramov Mann, MD

Dr. Michael Petetit has worked with people from many different walks of life in clinics, hospitals, and online, providing evidence-based treatments for a wide range of mental health conditions. His professional journey is unique—he began his career as a research chemist, later earned a Master’s degree in psychology and worked with children, before pursuing his medical degree and completing a psychiatry residency.

Dr. Petetit approaches treatment as a true collaboration. He partners with patients to clarify goals and create individualized treatment plans that reflect their priorities and values. He strives to be non-judgmental, direct, and honest in his style, building a therapeutic relationship that supports open communication and trust.

Dr. Petetit begins with a thorough evaluation to understand each patient’s circumstances and challenges. From there, he works with patients to set and prioritize goals, review treatment options, and select a plan that feels both comfortable and practical. As treatment progresses, he regularly revisits and refines the plan, ensuring it remains effective and aligned with the patient’s evolving needs.

Dr. Michael Locher completed Adult Psychiatry Residency Training at Los Angeles County, University of Southern California in which he focused two years of training in conducting Mindfulness Based Cognitive Therapy. Dr. Locher received his Bachelor of Science Undergraduate degree in 3 years with Phi Beta Kappa honors at University of Miami, Florida. In medical school at Stony Brook School of Medicine in New York, Dr. Locher was inducted into the Gold Humanism Honor Society while earning his Doctor of Medicine (MD) degree. Dr. Locher has held academic appointments at University of Southern California Keck School of Medicine, College of Osteopathic Medicine of the Pacific Western University of Health Sciences, and Ventura Community Memorial Health System Psychiatric Residency Training Program. He has an in interest working with immigrants and LGBTQ+ communities.  

Dr. Locher’s approach to medication management is that it is one tool to be used in the broader context of a multi-modal evidence-based treatment approach that draws upon psychotherapy, mindfulness skills, Buddhist psychology, psychedelic AKA “mind manifesting” studies, yoga philosophy, and other integrative practices. He understands that healing is an individualized process that cannot unfold without a safe space. Dr. Locher is dedicated to holding an approachable, empathic space where you can feel empowered to write the next chapter of your life.  

Dr. Locher is well versed in treating the full spectrum of mental illness. Having worked on multidisciplinary teams in acute inpatient psychiatric hospital settings, psychiatric emergency rooms, and mental health urgent cares for the better part of 10 years, he is comfortable helping with not just mild to moderate illness, but also the most severe cases of mental illness. Dr. Locher is especially motivated to work with you to maintain stability, avoid hospitalization, and more broadly, to achieve wellness.

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Dr. Weasen is a board-eligible adult psychiatrist with Talkiatry. He received his medical degree from Sidney Kimmel Medical College at Thomas Jefferson University in Philadelphia. He then moved to Washington, D.C. to complete his residency training at Saint Elizabeths Hospital, where he served as Chief Resident during his final year. He is a member of the American Psychiatric Association (APA) and has presented at the APA Annual Meeting on the topic of virtual fatigue. He has had extensive experience working with a wide array of patients, including college/graduate students, geriatric patients, military veterans, and LGBTQ+ populations.

Dr. Weasen provides a combination of medication management and supportive psychotherapy. Occasionally, he may work with you on finding additional support as well, including bringing on a dedicated therapist as part of your treatment team. He believes in tailoring treatment to each person’s needs. He primarily treats mood disorders, anxiety disorders, ADHD, PTSD, OCD, and insomnia, but believes in seeing beyond the diagnosis and focusing on the individual first and foremost.

Dr. Danielle Gelfond is an Adult Psychiatrist and a graduate from Loyola University Medical Center's residency program in Chicago, IL. Prior to attending residency, Dr. Gelfond graduated from Rush Medical College at Rush University. Throughout residency, Dr. Gelfond spent time focusing on her clinical interests which include mood disorders, anxiety disorders, substance use disorders, and women's mental health. During her training, Dr. Gelfond spent several years working with the Perinatal population and completed a year-long program focusing on Women's Mental Health through the National Curriculum in Reproductive Psychiatry organization. She held the role of Chief Resident of her program during the last two years of her training and received several awards commending her leadership style and rapport with patients through her program. Dr. Gelfond takes on a holistic and "patient-centered" approach in her treatment style. She incorporates both medication management, supportive psychotherapy, and discussions surrounding lifestyle and wellness into her appointments and emphasizes patient education and autonomy, which she believes helps support the therapeutic relationship, improve clinical outcomes, and helps treatment align with the patient's goals of care.

Dr. Zeynep Altun is board-certified in Psychiatry and holds a Ph.D. in Neuroscience. Dr. Altun graduated cum laude from Istanbul University, Istanbul Medical School. She completed her residency training in Neurology and is Turkish board-certified in clinical Neurology. Subsequently, she moved to the U.S. and finished her Ph.D. in cellular Neuroscience at Cornell University Graduate School of Medical Sciences. Dr. Altun completed her psychiatry residency training at Albert Einstein College of Medicine, Department of Psychiatry and after, her clinical fellowship in Comprehensive Psychiatric Emergency Program at Columbia University Medical College, New York Presbyterian Hospital. Dr. Altun has practiced in various settings including Bellevue Hospital, New York Presbyterian Hospital, Columbia Doctors Faculty Practice Office, Mount Sinai West and Mount Sinai Morningside Hospitals. Dr. Altun has held various academic appointments at New York University School of Medicine Department of Psychiatry; New York Presbyterian Hospital-Columbia University Medical College Department of Psychiatry; New York State Psychiatric Institute and Mount Sinai School of Medicine Department of Psychiatry. She spent most of her professional career supervising and teaching medical students, psychiatry residents and nurse practitioners. As an adult psychiatrist, Dr. Altun has extensive theoretical knowledge of the nervous system and its disorders and more than 10 years of experience in treating various mental illnesses including mood disorders, anxiety disorders, psychotic disorders, autism-spectrum and neuropsychiatric disorders, psychiatric emergencies and crisis management as well as cognitive behavioral and supportive psychotherapy. In Columbia Doctors, she collaborated closely with the Lieber Recovery Clinic, treating young adults with various mental illnesses. The philosophy of her practice is to collaborate with patients and work together with them so that they can lead symptom-free, productive, and stable lives.

Dr. Maxwell Schauermann is a board-certified addiction psychiatrist. He completed his medical school and residency training at Loma Linda University in sunny Southern California. He was recognized by his colleagues as Chief Resident of inpatient services for his leadership and problem-solving abilities. His passion for caring for people with substance use disorders led him to complete specialized training in Addiction Psychiatry at the University of Washington in 2024. Dr. Schauermann is known for his patient-centric approach and nonjudgmental, easy-going attitude. He typically offers 60-minute new visits and 30-minute follow-up visits. He excels in treating both psychiatric and addiction disorders, utilizing a broad array of therapeutic modalities, including psychiatric medications, supportive therapy, cognitive-behavioral therapy, dialectical behavior therapy, psychodynamic-based therapy, prolonged exposure therapy, and motivational enhancement therapy. His treatment philosophy centers on empowering patients to heal holistically�body, mind, spirit, and relationships�ensuring each individual receives tailored and evidence-based care.