Amber Blue, 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. 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. Ioana Horotan-Enescu is a board-certified Psychiatrist. Before joining Talkiatry, she was an Active-Duty staff psychiatrist at Blanchfield Army Community Hospital, Fort Campbell, KY. Her military service also included roles such as Medical Director of Behavioral Health and Interim Clinic Chief for Embedded Behavioral Health Clinic. She completed her internship and residency at Walter Reed National Military Medical Center and earned her Doctor of Osteopathy Degree from the University of New England College of Osteopathic Medicine. Her clinical experience spanned from the inpatient to the outpatient setting and afforded her the opportunity to develop comprehensive skills in the treatment of PTSD, mood disorders, thought disorders, addiction and perinatal mood disorders. Her teaching experience spanned multiple institutions, where she has served as a preceptor and mentor for medical students, nurse practitioner and physician assistant students. In addition to medication management, she augments her practice by implementing mindfulness, psychodynamic and supportive therapy techniques in her everyday practice to enhance treatment and improve treatment response. Dr. Horotan-Enescu holds several certifications, including in Cognitive Behavioral Health Therapy for Suicide Prevention, Motivational Interviewing and Battlefield Acupuncture. She has delivered presentations at national and international conferences on various topics, reinforcing her commitment to advancing the field of psychiatry.

Dr. Cash attended Wright State University Boonshoft School of Medicine, where she developed a strong foundation in medicine and a passion for psychiatry. She completed her residency at Wright State University, honing her skills in understanding and treating mental health conditions.

Dr. Cash has worked in various outpatient settings, treating patients with mental health disorders including depression, anxiety, PTSD, ADHD, and mood disorders. She is board-certified in general psychiatry and addiction medicine, and believes in a holistic approach to care. Dr. Cash is committed to helping patients navigate their mental health journeys and to providing compassionate, personalized care.

Dr. Cash works closely with patients to develop treatment plans that combine medication, lifestyle changes, and psychotherapeutic strategies to address their unique needs.

Dr. Atkins is a staff psychiatrist at Talkiatry. He is board-certified in adult psychiatry and has been in practice for the past 2 years. He has received several awards for teaching and the treatment of chronically ill patients, including Stony Brook University's "William Turner Award" for excellence in education and leadership. Dr. Atkins has focused his practice primarily on medication management. He combines medication management with a therapeutic style that is a blend of supportive therapy, cognitive behavioral therapy, and motivational interviewing. Follow‐up appointments with Dr. Atkins typically last 20‐30 minutes. While Dr. Atkins is trained in a variety of therapeutic techniques, he works collaboratively with therapists and may recommend their inclusion as part of your treatment team, depending on your individualized treatment plan .Dr. Atkins attended the University of Connecticut School of Medicine where he received his medical degree. He completed his psychiatry residency at Stony Brook University Hospital in New York. Post residency, he worked with general adult patients as well as older adults at Manchester Memorial Hospital where he served as both an outpatient psychiatrist and Director of the Geriatric Intensive Outpatient Program. Although Dr. Atkins does not treat child or adolescent patients, he has experience working with people of all ages, from young adults to adults. He has experience treating mood disorders, anxiety disorders, obsessive-compulsive disorder, patients in the perinatal period, and patients with co‐co-occurring substance use disorders. He has regularly managed behavioral problems in adults with autism spectrum disorders as well as dementia. He particularly enjoys working with patients dealing with life or role transitions, older adults, and patients with bipolar or other affective disorders.

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.