Sara Mateo, MD

Marie Thompson, PMHNP, has over a decade of experience practicing in outpatient settings. She earned her undergraduate, graduate, and post-graduate degrees from Ursuline College in Pepper Pike, Ohio. Marie is dual certified as a Family Nurse Practitioner and Psychiatric Mental Health Nurse Practitioner, allowing her to provide well-rounded, holistic care to her patients.

Marie uses a team-based approach to help patients meet their treatment goals. She is dedicated to creating a trusting, non-judgmental environment where individuals feel safe, heard, and supported. Her goal is to enhance daily functioning and improve each patient’s overall quality of life.

Marie creates individualized treatment plans to meet each patient's unique needs. She works collaboratively to develop patient-centered goals and uses a thoughtful, compassionate approach to guide treatment. Her process prioritizes open communication, shared decision-making, and long-term wellness.

Dr. Sallie Jo Hadley holds the position of Staff Psychiatrist at Talkiatry. She is board-certified in psychiatry and pediatrics and is board-eligible in child and adolescent psychiatry. She has been practicing for 22 years. Dr. Hadley's practice is focused on medication management with supportive therapy in follow-up sessions of 15 or 30 minutes. Dr. Hadley is experienced with collaborative treatment and encourages adding a therapist to your care team in those situations where additional therapy might be helpful. Dr. Hadley is a graduate of the Mount Sinai School of Medicine's triple-board program (psychiatry, pediatrics, and child and adolescent psychiatry). She completed post-doctoral research fellowships at Mount Sinai's Seaver Center for Autism Research/Compulsive-Impulsive Anxiety Disorders and at Columbia University's New York State Psychiatric Institute, the latter focusing on metabolic and weight issues in children and adolescents with psychiatric disorders. Dr. Hadley had an early background as a nurse, receiving her B.S. in Nursing from the University of North Carolina-Chapel Hill. Her experience in neonatal, psychiatric, and hospice nursing led her to pursue her degree in medicine. Dr. Hadley has worked in pharmacologic research in both academic and industry settings. Prior to joining Talkiatry, she practiced in a multi-specialty clinic for individuals and families dealing with autism or intellectual disabilities and complex medical co-morbidities. Dr. Hadley enjoys working with motivated individuals of all ages who are seeking to better their life or better cope with life circumstances. She has particular expertise in working with individuals and their families suffering from anxiety, depression, and obsessive-compulsive disorders.

Dr. Alexandra ("Sasha”) Blaes is a board-certified psychiatrist. Before joining Talkiatry, she practiced consult-liaison psychiatry, seeing medically ill patients with psychiatric problems at the Department of Veterans Affairs, where she also treated veterans in nursing homes. Dr. Blaes graduated from New York University with a B.A. in philosophy and photography and worked in nonprofit marketing in New York before deciding she wanted to pursue a life in medicine. Following a post-baccalaureate, pre-medical program at Columbia University, Dr. Blaes completed medical school at The University of Maryland, followed by a psychiatry residency at The Johns Hopkins Hospital. While at Johns Hopkins, she mastered clinical assessment and treatment of general psychiatric problems. She also received specialized training in eating disorders, addiction, reproductive psychiatry, chronic pain, and geriatric psychiatry, an interest she pursued further with a fellowship at University of Pittsburgh Medical Center. In fellowship and in her subsequent experience at the VA, she developed expertise in caring for the difficulties that can accompany aging, including depression, anxiety, and memory loss, as well as the stress of medical illness. Dr. Blaes' practice focuses on medication management. She works to foster a safe and collaborative space in which patients can address psychiatric illness and other barriers holding them back from the lives they want to lead. Typically, she offers appointments for medication management coupled with supportive or emotionally focused therapy in 30-minute sessions. When Dr. Blaes feels that additional therapy is needed, she will suggest inviting a therapist to join the team for additional support and guidance. She welcomes collaborations with other clinicians, be they therapists or other physicians caring for her patients. She strives to build strong therapeutic relationships that help patients grow and meet their goals - whatever their situation, challenge, or life stage. Dr. Blaes welcomes patients from all walks of life and cultural backgrounds and is LGBTQ+ friendly. In addition to her background in geriatrics, she has experience working with peripartum women and enjoys working with patients navigating major life changes.

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. Nicholas Sahagian is a Psychiatrist in Colorado who has been practicing since 2023. He completed his MD and Adult Psychiatry Residency at the Chicago Medical School at Rosalind Franklin University and earned his BA in Neuroscience at Skidmore College. Dr. Sahagian has experience managing a broad array of complex psychiatric diagnoses in patients of diverse socioeconomic, cultural, and clinical backgrounds. Outside of work, he enjoys hiking, biking, skiing, playing guitar, reading, and collecting board games.

Dr. Sahagian offers psychiatric medication management while also incorporating elements of cognitive behavioral therapy, motivational interviewing, internal family systems, and lifestyle interventions. He believes that every patient is unique, and he works to create a supportive environment where individuals feel heard and empowered in their care.

Grounded in the biopsychosocial model, Dr. Sahagian takes a collaborative, patient-centered approach. He partners with patients to develop personalized treatment plans that integrate biological, psychological, and social factors, with the goal of guiding them along their path to improved wellness.

Dr. Cabrera is a board‐certified psychiatrist with several years of experience working with an ethnically and culturally diverse population in outpatient, inpatient, and psychiatric emergency room settings. Most recently, Dr. Cabrera practiced privately treating adults with a wide range of mental illnesses both in person and via telepsychiatry. Prior to this, she was an attending psychiatrist in the outpatient department and in the Comprehensive Psychiatric Evaluation Center at Mount Sinai Beth Israel where she also served as Associate Training Director of Psychiatric Residency Training. Dr. Cabrera has a strong background in psychopharmacology and supportive and psychodynamic psychotherapy.