Jacqueline Miller, LPCC

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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.

Michael Fiori, MD

Staff Psychiatrist

Dr. Michael Fiori is Board Certified in Adult Psychiatry and Addiction Medicine. He has practiced general psychiatry for 37 years, and has also sub-specialized in Addiction Psychiatry for the past 20 years. Dr. Fiori's practice emphasizes Diagnostic Clarification, which is an ongoing process. He is highly trained and experienced in the biological and psychosocial underpinnings of psychiatric problems. He typically follows diagnostic evaluations with 30-minute follow up visits for medication adjustments and brief therapy. Dr. Fiori often enjoys collaborating with outside therapists when needed. Dr. Fiori graduated from Amherst College and received his medical degree from NY Medical College. He subsequently completed his residency in psychiatry at the Mount Sinai Medical Center in NYC. He excelled in Academic Psychiatry as both a teacher and a mentor. His practice has always combined medications with evidence-based therapies to alleviate suffering and maximize functioning. In addition to his work as a Board Certified Adult Psychiatrist, he has specialized in helping patients suffering from Substance Use Disorders. Dr. Fiori is Board Certified in Addiction Medicine, and helps patients understand the interrelationships between their Substance Use Disorders and their Psychiatric illnesses.

Nicole Powers, PMHNP

Staff Nurse Practitioner

Nicole Powers is an accomplished Autonomous Psychiatric Mental Health Nurse Practitioner with over 20 years of nursing experience and 6 years as a Nurse Practitioner. She holds a Master's degree in Nursing, specializing in psychiatric mental health, and is certified by the American Nurses Credentialing Center (ANCC). Throughout her career, Nicole Powers has cultivated a deep commitment to mental health care, focusing on patient-centered approaches that empower individuals to achieve optimal well-being.

Before joining Talkiatry, Nicole worked in various healthcare settings, including inpatient psychiatric facilities and outpatient clinics, inpatient critical care units where she honed her skills in diagnosing and treating a wide range of mental health disorders. Her specialties include anxiety, depression, and trauma-related conditions, and she is particularly passionate about integrating holistic practices into her treatment plans.

Nicole Powers treatment style emphasizes collaboration and open communication, ensuring that her patients feel heard and understood. She believes in utilizing evidence-based practices while incorporating patients' personal experiences and preferences into their care. By fostering a supportive and compassionate environment, she aims to help her patients navigate their mental health journeys with confidence and resilience.

As a dedicated advocate for mental health awareness, Nicole Powers also engages in community outreach and education, striving to reduce stigma and promote access to mental health resources. Her commitment to excellence in psychiatric care makes her a valuable asset to the Talkiatry team.

Michelle Hamilton, PMHNP

Staff Nurse Practitioner

Michelle Hamilton is a Board-Certified Psychiatric Mental Health Nurse Practitioner with a special interest in the care of adults with mood disorders, anxiety disorders, and PTSD. She earned her Master of Science Degree from The Ohio State University and her Bachelor’s Degree in Nursing from The Oregon Health & Science University in Portland, Oregon. Her background includes both inpatient and outpatient psychiatry, crisis stabilization, and Consult-Liaison Psychiatry. Michelle has a passion for incorporating a holistic, evidenced-based approach to improve the mental health needs of each individual client through medication and therapy while emphasizing practical lifestyle changes such as the incorporation of exercise, healthy nutrition, and stress management techniques.

Rayal Gorrepati, MD

Staff Psychiatrist

Dr. Rayal Gorrepati is double board certified in both adult and geriatric psychiatry. He has been practicing for over 12 years. Dr. Gorrepati's practice focuses on medication management. Typically, he offers this in conjunction with supportive psychotherapy in 30-minute follow-up visits. However, occasionally Dr. Gorrepati may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best possible outcome. He received his medical degree from the American University of the Caribbean School of Medicine. His general psychiatry residency was completed at Cooper University Hospital in New Jersey. He then completed a Geriatric Psychiatry Fellowship at the University of Hawaii. After completing training, he returned to his hometown of Chicago and began working at a Federally Qualified Health Center providing care to an underserved low-income population for nearly 12 years. While at the clinic, he treated a wide range of diagnoses, the most common ones being depression, anxiety, bipolar disorder, etc. His primary clinical focus is treating adults with depression, anxiety, and bipolar disorder.

Jacob Kannarkat , MD

Staff Psychiatrist

Dr. Jacob T. Kannarkat is an adult psychiatrist. Dr. Kannarkat's practice focuses on medication management. In his visits, he uses an integrative approach, blending an empathic, problem-solving orientation with an understanding that the reasons for an individual's condition can be complex. He has experience dealing with many forms of mental illness and works collaboratively with his patients and their other treatment providers in making a plan for recovery. Dr. Kannarkat completed undergraduate studies at the University of Florida. After receiving his medical degree at the University of Miami Miller School of Medicine, Dr. Kannarkat continued for residency at the University of Miami/Jackson Health System. He ultimately completed his training as Chief of Psychiatric Emergency Services at Yale School of Medicine. Dr. Kannarkat has experience working with adults of all ages who are dealing with depression, anxiety, bipolar disorder, PTSD, substance use disorders, and many other conditions.‍

Lauren Morris, MD

Staff Psychiatrist

Dr. Lauren Morris is a board-certified psychiatrist and a graduate of the Duke Psychiatry residency program. She is originally from NC - she studied Neuroscience at NCSU, and attended medical school at ECU. Dr. Morris's practice focuses on medication management, and incorporates insight-oriented therapy during visits. Dr. Morris takes a patient-centered evidenced based approach to psychiatry. Dr. Morris is joining the Talkiatry team after working as a staff psychiatrist at the Durham VA, where she also served as a consulting professor for the Duke psychiatry residency program. In her free time, Dr. Morris enjoys hiking and traveling.

Rachel Sherhart, MD

Staff Psychiatrist

Dr. Rachel Sherhart is a board-certified adult psychiatrist who has been in practice for over 4 years. She specializes in medication management with 30-minute follow-up visits. This may be accompanied by elements of supportive therapy, Acceptance and Commitment Therapy (ACT), Dialectical Behavior Therapy (DBT), and psychodynamic therapy. If more in-depth work is needed, she may refer patients to a collaborating psychotherapist. ‍Dr. Sherhart received her medical degree from Texas A&M Health Science Center and completed her psychiatry residency training at the University of Texas Southwestern in Dallas, Texas. She has served as faculty at Texas A&M University College of Medicine, providing education and supervision for psychiatry residents and medical students. ‍She has experience treating adult patients from many walks of life with a broad range of diagnoses, including depression, anxiety, bipolar disorder, ADHD, and trauma-related disorders. Dr. Sherhart has a passion for providing excellent patient care and education. Her goal is for patients to feel heard and find a safe place to discuss their concerns. She is motivated to work collaboratively with patients to find a solution that best fits their treatment goals and improves their overall quality of life.‍

Marla Richard, MD

Staff Psychiatrist

Dr. Marla Richard is a Stanford-trained board-certified psychiatrist and is board-eligible for geriatric psychiatry from UCSD. She has been practicing in a variety of settings for the last 30 years. Dr. Richard uses an integrated health paradigm with general and geriatric patients using traditional psychopharmacology, interpersonal neurobiology practices, and personality assessments to look at root motivations for behaviors to address core issues and with medication management as needed. Dr. Marla believes that you need to take a whole-person approach to both mental and physical health. She received her undergraduate degree from the University of Minnesota, Duluth, and then attended medical school at Stanford Medical School to complete her MD. With visions of becoming a general surgeon, she went to the University Hospitals of Cleveland and completed two years of general surgery training before seeing the light and transferring to psychiatry. She completed her psychiatry training at Stanford University and geriatric training many years later at UCSD. Her focus includes an integrated approach to the consideration of mental and physical health while incorporating mindfulness tools to teach skills of stress and anxiety management in everyday life. In conjunction with medication management, she uses interpersonal neurobiology to help clients understand triggers as well as methods to calm overactive stress responses and reactivity.

Jennifer Millar, LMFT

Staff Therapist

Jennifer R. Millar, MA, LMFT, is a compassionate and dedicated Licensed Marriage and Family Therapist with over eight years of experience helping individuals, couples, and families navigate complex emotional challenges. She holds a Master's in Marriage & Family Therapy from NorthCentral University and has extensive training in various therapeutic modalities, including Psychodynamic Therapy, Solution-Focused Therapy, and EMDR. Jennifer specializes in trauma recovery, particularly for women who have experienced narcissistic abuse in relationships. Her therapeutic approach is holistic and client-centered, integrating genogram assessments to explore family dynamics and attachment patterns. Jennifer's unique combination of professional expertise and personal insight into narcissistic abuse allows her to provide deep empathy and effective strategies for healing. In addition to her work with trauma survivors, Jennifer has successfully supported clients through issues such as anxiety, depression, relationship challenges, and self-esteem. Her practice is rooted in fostering emotional growth, enhancing communication, and guiding clients toward healthier, more fulfilling lives. Jennifer is licensed in Florida, Indiana, New Jersey, and New York, and she offers teletherapy through her practice, Begin Healing Within. She is also EMDR-trained, offering specialized treatment for trauma and PTSD.

Caitlin Meyer, MD

Staff Psychiatrist

Dr. Caitlin Meyer is a board-certified in adult psychiatry with experience in a wide variety of psychiatric disorders including depression, anxiety, women's mental health, and ADHD. Dr. Meyer's practice is focused on medication management with supportive therapy offered in 30-minute follow-up visits. Dr. Meyer received her medical degree from the University of Texas Southwestern Medical Center in Dallas, Texas, where she received the North Texas Society of Psychiatric Physicians' Award for outstanding medical student in Psychiatry. She pursued her residency in adult psychiatry at Brown University in Providence, Rhode Island, with particular interest and training in child, adolescent, and young adult Psychiatry. After completing training, Dr. Meyer worked with children and adults in a variety of treatment settings including Community Mental Health Centers and hospitals, providing inpatient, residential and outpatient services. Prior to joining the Talkiatry team, Dr. Meyer participated in psychiatric research developing new treatment methods for complex psychiatric disorders. Dr. Meyer enjoys treating patients across the lifespan from young adulthood through senior care. She sees each patient as a unique individual and works together with her patients to develop a treatment plan specific to their needs and goals.

Deborah Bearman, PMHNP

Staff Nurse Practitioner

Deborah Bearman, PMHNP, is a board-certified psychiatric nurse practitioner who is dedicated to helping those struggling with mental health concerns to live a more fulfilling life. Deborah received her Master of Science in Nursing with a specialty in psychiatry from SUNY Upstate Medical University. She is trained in psychiatric diagnosis, medication management, and psychodynamic and cognitive behavioral therapies. Over the past 10 years, she has gained valuable experience in a number of settings, including inpatient and outpatient facilities, community mental health clinics, and private practice. Deborah is devoted to addressing adult mental health from a holistic perspective, utilizing a combination of medication management with supportive counseling, which she offers during 30-minute follow up sessions. While she focuses on medication management, she believes most people benefit from therapy as well and has extensive experience in psychodynamic and cognitive behavior therapies. She also believes in providing psychoeducation to patients, families, and caregivers. As a psychiatric nurse practitioner, Deborah understands the value of the therapeutic relationship and the positive impact it can have on daily function. By working with patients to create comprehensive and effective treatment plans, Deborah supports her patients in living healthier and more satisfying lives.

Jacqueline Miller, LPCC

Education and training

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