Reaghan Hicks, MD

Dr. Corey Greenwald is a board-certified psychiatrist with years of experience treating patients in both acute inpatient psychiatric emergencies and outpatient medication and psychotherapy settings. He earned his medical degree from Brown University, completed his internship in the Columbia system, and pursued residency training at Mount Sinai Medical Center in New York City. Dr. Greenwald has practiced in academic, urban, suburban, and rural environments, which has given him broad perspective and adaptability in caring for diverse patient populations.

Dr. Greenwald emphasizes psychoeducation as a core part of care, ensuring patients are active participants in understanding and managing their mental health. He brings a deep interest in transcultural issues and in how social media and news cycles impact emotional well-being. Having witnessed the effects of mental illness within his own family, Dr. Greenwald approaches his work with empathy, insight, and a strong commitment to helping patients feel supported throughout their journey.

Dr. Greenwald works collaboratively with patients to define or clarify concrete treatment goals by the end of the initial appointment. He maintains a low threshold for revisiting and adjusting treatment plans if progress feels unsatisfactory, ensuring care remains flexible and effective. His informal, eclectic interpersonal style allows him to tailor his approach to each individual, fostering trust and partnership in the therapeutic process.

Dr. Candice Hacker is a board-certified Psychiatrist at Talkiatry. She completed her Psychiatry residency and a fellowship in Consultation Liaison Psychiatry at Mount Sinai/St. Luke's Hospital. She is passionate about a holistic approach to patient care, trained in psychosomatic medicine, and she has a deep appreciation for the intricate connection between the mind and body. With over 20 years of experience, Dr. Hacker has facilitated excellent outcomes in the treatment of various mental health conditions, including anxiety disorders, mood disorders, and trauma-related conditions. Dr. Hacker believes in creating a safe, nurturing and non-judgmental environment where patients can openly explore their emotions and experiences. By integrating evidence-based psycho-pharmacological modalities with mindfulness and cognitive-behavioral techniques, she empowers her patients to challenge a negative mindset and reach their goals. Beyond her clinical practice, Dr. Hacker is deeply committed to community mental health advocacy and the destigmatization of mental illness.

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.

Dr. Osamudiamen Osa-Edoh is board-certified in general adult psychiatry. He earned his medical degree from the University of Benin in Nigeria and completed his psychiatry residency at Meharry Medical College in Nashville, Tennessee, where he served as Chief Resident and received multiple honors. He previously served as Medical Director at Sumner Regional Hospital and Assistant Professor at Meharry Medical College.

As a psychiatrist, Dr. Osa-Edoh diagnoses and treats mental illnesses through medication management and psychotherapy. He believes in a kind, compassionate, and evidence-based approach that prioritizes patient needs and fosters a supportive, healing environment.

Dr. Osa-Edoh creates a welcoming, collaborative space where patients feel heard and supported. He takes time to listen, building trust and a strong therapeutic relationship. His goal is to partner with each patient to support their mental health and help them reach their personal wellness goals.

Dr. Peter Szeibel is board certified in adult psychiatry and has been practicing for over 36 years. His practice has focused primarily on medication management within the context of a supportive psychotherapeutic relationship. He also utilizes cognitive behavioral techniques. If the patient requires more intensive psychotherapy, Dr. Szeibel refers the patient to a therapist and collaborates with the therapist. Dr. Szeibel has experience in treating Depressive Disorders, PTSD, Panic Disorder, OCD, Bipolar Disorder, ADHD, and many other conditions. He feels his personal strengths include his inquisitiveness, scientific curiosity, and his desire to understand his patients better. Dr. Szeibel was born in Hungary, just a few months before the Hungarian Revolution against the Soviets broke out in 1956. He and his family fled under difficult circumstances and immigrated to the United States. Dr. Szeibel grew up in New York City. He attended The Bronx High School of Science, followed by Columbia University for his B.A., where he took a double major in chemistry and music. After obtaining his M.D. from S.U.N.Y in Syracuse, he returned to New York City for residency and fellowship training. During this time he won the Bendheim Fellowship Award at Cohen Children's Medical Center for his research study which examined the effects of background music on the academic performance of children with ADHD. His current areas of interest include adult ADHD, psychiatric and medical co-morbidities, and the LGBTQ population.

Dr. Sumbal Akhter graduated from the University of Nevada at Las Vegas Psychiatry residency program. She has a wide range of experience, having worked at the VA, consult liaison psychiatry, and multiple inpatient/outpatient settings. She provides supportive psychotherapy and takes an integrative approach to her practice.