Maria Mann, MD

Dr. Taj Deen earned his medical degree from Dow Medical College in Karachi, Pakistan, and completed psychiatry residency training at Maimonides Medical Center in Brooklyn. He has over 20 years of experience at Jacobi Medical Center’s acute inpatient psychiatric unit, led an acute psychiatric unit for 10 years at Montrose VA Hospital in New York, and served for 25 years in the psychiatric emergency room at Westchester Medical Center.  

Dr. Deen prioritizes building a genuine therapeutic alliance with all patients, fostering open communication and collaboration. He works closely with patients to set clear treatment goals and objectives while creating a warm, supportive environment in which patients feel heard, respected, and empowered.  

Dr. Deen begins with a comprehensive interview to understand each patient’s history, concerns, and goals. From there, he develops individualized treatment plans tailored to the patient’s objectives, combining compassionate guidance with evidence-based psychiatric care to support meaningful progress.

Dr. Kevin DiCesare is a board-certified psychiatrist, treating adults. He received his undergraduate degree at Harvard University, his medical degree at the University of Massachusetts Medical School, and then went on to train at Maine Medical Center for his psychiatric residency. He has 22 years of expertise in diagnosing and treating psychiatric conditions, including depression, anxiety, Bipolar spectrum disorders, adjustment problems, ADHD and other disorders. He is well versed in psychopharmacological interventions, but is a proponent of patients also being active in psychotherapy whenever appropriate. He prides himself in collaboratively arriving at treatment decisions with his patients, and taking the time to listen to their concerns and answer their questions.

Dr. DiCesare has worked in various settings, including community mental health centers and large hospital systems, with experience in inpatient, outpatient, and consultative roles. Prior to joining Talkiatry, he most recently served as an attending psychiatrist on the staff of Southern New Hampshire Health System, where he provided consultative care to referrals made from primary care providers and various specialists.

Dr. Aidin Ashoori brings clinical experience from diverse settings including outpatient clinics, inpatient units, and emergency departments. He earned his medical degree from Columbia University College of Physicians & Surgeons and completed his psychiatry training at The University of North Carolina at Chapel Hill.

Dr. Ashoori works with individuals of all ages and cultural backgrounds. He has treated a wide range of conditions including depression, anxiety/OCD, bipolar disorder, trauma-related disorders, ADHD, and other psychiatric concerns. Outside of clinical practice, he is also a passionate musician who plays piano and composes music for media. Learn more at www.aidinashoori.com.

Dr. Ashoori uses a holistic, biopsychosocial approach tailored to each patient's unique background and needs. He integrates evidence-based pharmacotherapy with insight-oriented psychotherapy, aiming to foster self-awareness and long-term change. His patient-centered philosophy emphasizes a collaborative, respectful therapeutic alliance.

Education and training

Stony Brook University (Bachelor of Science)

American University of Integrative Sciences (MD)

Davenport University (MBA)

Bergen New Bridge Medical Center (residency)

University Hospitals Cleveland Medical Center/Case Western Reserve University (fellowship)

Dr. Mohammed Islam is board certified in both General Psychiatry and Child and Adolescent Psychiatry. He completed his undergraduate studies at Stony Brook University and attended medical school at the American University of Integrative Sciences. He completed his psychiatry residency training at Bergen New Bridge Medical Center followed by completion of a fellowship in Child and Adolescent Psychiatry at University Hospitals/Case Western Reserve University where he served as Chief Fellow. Prior to joining Talkiatry, he has trained/worked in a combination of various healthcare systems across New York, New Jersey, Ohio and Kentucky.

Dr. Islam treats patients of various ages- in addition to medication management he is a strong proponent of therapy in various forms. His approach to the treatment of adults and children/adolescents incorporates the impact of various things such as family history of mental health/medical conditions as well as any adverse childhood experiences/trauma. In addition to screening for common conditions such as bipolar disorder, anxiety and depression in all patients, he also emphasizes the importance of screening for conditions that can manifest in childhood (such as ADHD, Autism) as well as first-episode psychosis in young adults.

From the initial visit and onward, Dr. Islam prioritizes a collaborative effort with his patients (and at times their families). In addition to medication adjustments, he emphasizes the importance of optimizing additional tools such as therapy while making appropriate lifestyle changes. During every follow up visit, he takes care to ensure that the current treatment is not hindering his patient’s progress in any way.

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Leanne Booth is a board-certified Family Psychiatric and Mental Health Nurse Practitioner who brings over two decades of experience in psychiatric nursing and advanced practice care. She offers a warm, collaborative approach grounded in empathy and whole-person care. Clients describe her as calm, attentive, and deeply compassionate, and she aims to create a safe, supportive environment where individuals feel heard, respected, and understood.

Leanne believes that trust and honesty are the foundation of effective treatment. She values open dialogue and strives to meet clients where they are, without judgment. Her approach is person-centered and trauma-informed, with a focus on empowering clients in their care decisions. She works closely with each patient to understand their goals, preferences, and challenges, while offering evidence-based treatment tailored to individual needs.

In sessions, Leanne blends medication management with supportive therapy, psychoeducation, and motivational interviewing. She takes a holistic view of each patient’s health, considering possible medical causes for psychiatric symptoms and coordinating with primary care providers when appropriate. Her goal is to provide thoughtful, integrated care that supports clients in achieving long-term wellness.

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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