Rachel Sherhart, MD

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Dr. Joyln Ferrell is a board-certified psychiatrist with specialized training in treating depression and anxiety disorders. She earned her medical degree from Howard University College of Medicine and also holds a doctorate in pharmacy from the University of Georgia. She completed her residency training in psychiatry at VA Boston/Harvard Medical School and gained significant clinical experience at McLean Hospital. Additionally, she completed a fellowship in psychoanalytic psychotherapy at Columbia University Center for Psychoanalytic Training and Research.

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Treatment approach

Dr. Ferrell focuses on providing patient-centered care, emphasizing improving quality of life and helping patients reach their specific treatment goals. Her approach integrates medication management with supportive therapy. She believes in a collaborative treatment process and may recommend additional therapy support when necessary to optimize outcomes. She takes a cautious and limited approach to the use of controlled medications, ensuring responsible medication management.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive assessment of their symptoms, medical history, and treatment goals. Dr. Ferrell takes a thoughtful and individualized approach to care, working with patients to develop a treatment plan that incorporates medication management and supportive therapy. Follow-up visits typically last 20-30 minutes and focus on monitoring progress and adjusting treatment as needed. In some cases, she may recommend involving an additional therapist to further enhance the effectiveness of the treatment plan.

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Why Talkiatry?

We’re a virtual mental health practice that makes it easy to find great care. We combine quality and convenience to help you thrive—faster. Our providers, like this one, are highly trained experts who specialize in medication management and collaborate with you on a treatment plan that fits your needs and comfort level.

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Geoffrey Peckover, MD

Staff Psychiatrist

Dr. Peckover is a Staff Psychiatrist at Talkiatry. He is certified by the American Board of Psychiatry and Neurology in Adult Psychiatry. He has been practicing for three and a half years. Dr. Peckover provides patient-centered care with an emphasis on medication management, psychoeducational, and lifestyle adjustments. He typically provides supportive or integrative therapy along with medication management, but some cases will require the addition of a therapist to the treatment team. Dr. Peckover received a Bachelor's of Medical Science from the University of Western Ontario in Canada and received his Medical Degree from Ross University. He completed his residency at Metropolitan Hospital in Manhattan, where he served as chief resident in his final year. He then worked as a psychiatrist in the outpatient department at Kings County hospital, where he also supervised residents from SUNY Downstate. As an outpatient psychiatrist, Dr. Peckover has an extensive history of treating patients of all ages with a wide variety of psychiatric disorders, with an emphasis on mood and anxiety disorders. He treated patients remotely during the COVID-19 outbreak, helping to manage the increase in stress that came with the pandemic.

Alexis Kropf, MD

Staff Psychiatrist

Dr. Alexis Kropf is a board-certified adult psychiatrist beginning her practice at Talkiatry after four years of clinical experience in residency. Dr. Kropf primarily focuses on providing medication management during 30-minute follow-up visits, weaving in elements of supportive therapy according to the needs of her clients. When additional therapy is indicated to promote recovery, Dr. Kropf may recommend that her clients work with a therapist as part of the treatment team. Dr. Kropf credits her undergraduate education at Southwestern University, a small liberal arts college, for strengthening her curiosity about and dedication to serving others. She received her medical degree from the University of Texas Southwestern Medical Center in Dallas, Texas, where she also completed her psychiatry residency training. During residency, she was involved in medical student education and resident leadership, serving as a chief resident during her final year of training. She also utilized her fluency in Spanish and medical Spanish interpreter training to serve Spanish-speaking patients and to lead Spanish-language group therapy sessions. In addition to psychopharmacology, Dr. Kropf studied psychotherapeutic interventions, including psychodynamic and cognitive behavioral therapies. She has experience working with clients experiencing many different mental health challenges, with a primary clinical focus including the treatment of anxiety, depression, and PTSD.

Tami Ditkoff, LMHC

Staff Licensed Mental Health Counselor

Tami is a Licensed Mental Health Counselor with a Master's Degree in the state of NY. She has been a therapist for about 8 years and attended graduate school at night while raising two amazing children. It is important for Tami to disclose this so that you know you are never too old to chase your dreams. She loves helping people and making a difference in people's lives. She uses various tools to help. If one tool isn't right, we search for others, never giving up! Tami is solution-focused but uses different approaches when helping clients. She likes to figure out which methods work best as there isn't a one size fits all way. She is a dedicated therapist with real world experience as well as clinical experience. Clients can expect to have great tools and coping mechanisms moving forward. Clients will know what steps need to be taken on their journey and will feel confident in knowing that they have Tami's support and commitment.

Lisa Oliveri, MD

Staff Psychiatrist

Dr. Lisa Oliveri is a double board-certified psychiatrist in Psychiatry and Forensic Psychiatry. She completed her undergraduate training at the University of Florida, followed by medical school at the Charles E. Schmidt College of Medicine at Florida Atlantic University. She completed both her residency in Psychiatry and fellowship in Forensic Psychiatry at the University of Miami/Jackson Memorial Hospital. Since graduating from fellowship, Dr. Oliveri has held an academic appointment at the University of Miami, teaching medical students, residents, and fellows, and serving as the Miami Veterans Healthcare System Site Director for the University of Miami Psychiatry residency and fellowship programs. Additionally, she has served as the Medical Director of the inpatient psychiatry unit and subsequently as the Assistant Chief of Psychiatry for the Miami VA Healthcare System. Dr. Oliveri has a strong interest in treating a broad range of psychiatric disorders, including depression, anxiety, posttraumatic stress disorder, and substance use disorders. She has extensive experience in treating adults with severe psychiatric illnesses in the inpatient setting. Patients looking for a psychiatrist will find that Dr. Oliveri is approachable, open-minded, and collaborative in her diagnostic interviews and treatment planning. She believes that a strong doctor-patient relationship with a thorough understanding of a patient's condition and concerns is key to effective treatment.

Gregory Miller, DO

Staff Psychiatrist

Gregory Miller, DO, is an adult psychiatrist who prioritizes understanding his patients by first listening to their stories. He collaborates with them to develop both pharmacological and non-pharmacological solutions aimed at improving their functionality. Dr. Miller emphasizes that functioning better often leads to feeling better. Whenever possible, he approaches treatment within the context of the family system surrounding the individual. Raised in South Carolina, and now residents of Florida, Dr. Miller and his wife of 31 years have six children. He enjoys outdoor activities and team sports and is an avid fan of Tolkien and C.S. Lewis. He at times incorporates analogies from their works into therapy if appropriate.

Steven Atkins, MD

Staff Psychiatrist

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.

Nilesh Tannu, MD

Staff Psychiatrist

Background and credentials

Dr. Nilesh Tannu is a board-certified psychiatrist by the American Board of Psychiatry and Neurology. He earned his medical degree from B.J. Medical College in Pune and completed his adult psychiatry residency at the University of Texas Medical School at Houston, where he served as chief resident. During his training, he received awards from the Society of Biological Psychiatry, the American Academy of Addiction Psychiatry, and the American Psychiatric Institute for Research and Education. He has been practicing General Psychiatry and Consultation-Liaison Psychiatry for the past seven years at Texas Medical Center in Houston, Texas. Additionally, he has served as an assistant professor of psychiatry at the Texas Medical Center, working at UT Physicians Clinics and Memorial Hermann Hospital. He is also a member of the Editorial Board for BMC Genomics Journal.

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Treatment approach

Dr. Tannu follows the bio-psycho-social model to provide evidence-based psychopharmacologic treatment. He integrates supportive therapy and cognitive-behavioral therapy (CBT) modalities into his practice to create personalized and comprehensive treatment plans. He is committed to mental health care, education, and helping patients achieve optimal functioning in their personal and professional lives. His clinical expertise includes ADHD, anxiety disorders, depressive disorders, bipolar disorder, psychotic disorders, insomnia, eating disorders, and complex medical comorbidities.

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What you can expect in a first visit

During the first visit, patients can expect a comprehensive assessment where Dr. Tannu takes the time to understand their symptoms, treatment history, and personal goals. He employs a collaborative approach to develop a tailored treatment plan that may include medication management and therapy interventions. His focus is on evidence-based care, ensuring that patients receive treatments that are scientifically backed and aligned with their individual needs.

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Why Talkiatry?

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Aisling Rea, LMHC

Staff Therapist

Dr. Aisling Rea is a dedicated therapist with an extensive educational background and experience in the field of psychology. She earned a Bachelor of Science at Florida Atlantic University, completed a Master of Science at Florida International University and a Doctorate in Psychology at Walden University. During her internship at Youth Automotive Training Center and The Humanistic Center for Counseling Services, Dr. Rea worked with individuals, families, couples, first responders and high-risk populations, having the opportunity to work with a variety of clients. As a professional, Dr. Rea gained valuable experience working in inpatient and outpatient programs and settings. Dr. Rea has a passion in helping clients heal from depression, anxiety, mood disorders, psycho-spiritual and relationship challenges. She believes open, empathetic understanding and taking a collaborative approach are the keys to a client-centered practice, and an important part of the healing and wellness of clients. In addition to Dr. Rea's clinical practice, she loves the ocean, enjoying photography, SCUBA diving, participating in beach clean-ups, and spending time with her family, dog and cat.

Elizabeth Faust, MD

Staff Psychiatrist

Dr. Elizabeth Faust is board-certified in Psychiatry with a fellowship in Integrative Psychiatry. She started in Family Medicine while in the Navy, where she also was a Flight Surgeon. She has practiced medicine since 1999, focusing on Psychiatry since 2007. Dr. Faust practices with an integrative approach to see what medical factors contribute to symptoms, unhealthy thought or relationship patterns, and lifestyle factors that maintain dysfunction. Unexamined, medications will only work briefly. While medications are part of treatment to acutely improve symptoms, she also brings in lifestyle changes, nutrition, spirituality, and social connection as resources to recover function and maintain wellness. 1995-1999 MD from Texas A&M University, US Navy 1999-2004; Family Medicine Internship, Aerospace Medicine training/Flight Surgeon; 2004-2007 the Psychiatry Residency University of Wisconsin. Dr. Faust worked at Iowa City VA, out of residency, treating fellow veterans and training residents at the University of Iowa. She then worked for Group Health in Washington, followed by independent work in telepsychiatry long before the pandemic. Most recently, she worked for Virginia Mason Franciscan to establish a Collaborative Care model of practice to provide expert consultation and support for primary care physicians to continue to care for their patients' mental health within the primary care setting. She enjoys working with patients who are ready to make a change that leads them to their better selves.

Celeste Boyd, PMHNP

Staff Nurse Practitioner

Ms. Celeste Boyd is a dual board certified Psychiatric Mental Health and Family Nurse Practitioner. She is the CEO and Founder of Metamorphosis Psyche, a psychiatric mental health resource platform. She has practiced in family medicine since 2011 and psychiatric mental health medicine since 2013. She has clinical experience and expertise in substance use disorders, addiction rehabilitation, sleep medicine, general psychiatry, and serious mental illness (SMI) in both private and public sectors. In Academia, she has extended her knowledge and experience as Adjunct Clinical Faculty at School of Nursing Graduate Programs.

Since 2017, Ms. Boyd has been practicing general psychiatry in the outpatient private sector. Ms. Boyd provides medication management and psychotherapy for acute, chronic, and comorbid psychiatric conditions that include Anxiety Disorders, Depression, Mood Disorders, ADHD, OCD, and PTSD. Her clinical treatment modalities include supportive therapy, solution-focused therapy, motivational enhancement, mindfulness, and cognitive behavioral therapy.

As a clinician, she promotes mental health awareness to reduce stigmatization and empower those suffering and struggling with mental illness. Ms. Boyd clinical practices are oriented towards the Mental Health Recovery Model, which permits individuals to go through an active process of change, being in control, strengthening, and empowering themselves to improve their mental health and well-being.

Katelyn Thompson, DO

Staff Psychiatrist

Dr. Katelyn Thompson is board certified in Adult Psychiatry. Patients looking for a psychiatric provider will find that Dr. Thompson has a gentle and approachable style. She believes that each patient was created on purpose and for a purpose. The brain is deeply wired for resilience, and Dr. Thompson is blessed to witness this while supporting her patients. She focuses on medication management with supportive psychotherapy as she treats a wide variety of psychiatric diagnoses.‍

Rachel Sherhart, MD

Education and training

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