Geoffrey Peckover, MD

Dr. Arballo is board-certified psychiatrist who completed medical school at Lake Erie College of Osteopathic Medicine. He received residency training at University of Texas Health - San Antonio where in addition to clinical training was appointed resident chair of the Quality Improvement and Patient Safety Committee.

Since graduation he has been a staff psychiatrist and the military unit director at Cumberland Hall Hospital providing comprehensive care to child, adolescent, adult, and geriatric patients.

Dr. Arballo provides evidence-based medication management and psychotherapy to address mental health conditions. He is a strong advocate for patient autonomy, quality improvement and psychoeducation.

Dr. Sahadevan took an adventurous path to Talkiatry. After perhaps thinking a little too hard about Intro to Philosophy in college - "the unexamined life is not worth living” - he first used his chemistry degree to work in pharmaceutical research. He changed course, working in computer network engineering, before deciding to find a more meaningful path. He worked as an EMT, then earned a Master's in Physiology before finally landing in medical school at Ohio State. Finding a surprising interest in psychiatry, he stayed at Ohio State for residency, and then a fellowship in forensic psychiatry. He is board-certified in both Psychiatry and Forensic Psychiatry. He previously worked as a forensic psychiatrist and evaluator at Ohio's maximum-security state psychiatric facility, as an attending psychiatrist running an inpatient unit for violent or dangerous patients, performing court-ordered evaluations, writing reports, and testifying when necessary. Dr. Sahadevan has also worked as a consultation-liaison psychiatrist, performing psychiatric consults at several general hospitals in Central Ohio's largest hospital system. He found great enjoyment in teaching successive generations of residents and medical students, serving as an adjunct faculty member at Ohio State, Ohio University, Wright State, and OhioHealth Riverside Methodist Hospital. He is excited for the next chapter of his journey, exploring another area of psychiatry at Talkiatry!

Dr. Tobias Murphy is a psychiatrist with Talkiatry who is licensed to provide care in the states of Ohio, West Virginia, and New York. He completed medical school and psychiatry residency at Marshall University's School of Medicine. He has additional training in neuropsychiatry and geriatric psychiatry. During his training, Dr. Murphy was actively involved in teaching medical students and residents. His most frequent lectures included LGBT and transgender mental health. He is a member of the American Psychiatric Association, the American Association of Gay and Lesbian Psychiatrists, the Gay and Lesbian Medical Association, the World Professional Association for Transgender Health. He was inducted into the Gold Humanism Honor Society and given awards for Inclusion and Advocacy as well as Honors in Community Service during training. He has published papers, presented at conferences, and served as an ad-hoc reviewer for medical journals. Dr. Murphy approaches medication management through the lens of compassionate listening and psychotherapy, seeking to reduce the stigma of mental illness and put patients at ease during their visits. He has experience treating a variety of conditions, including bipolar disorder, depression, OCD, PTSD, ADHD, and anxiety. He enjoys working with a diverse population of patients providing culturally informed care. Follow-up patient visits will include both supportive therapy and medication management during 30-minute encounters.

Dr. La Haie is board certified in adult psychiatry and has been in practice for over 15 years.  She completed her residency at Banner Good Samaritan (now Banner University) Hospital in Phoenix, Arizona.  After completing her residency training, Dr. La Haie worked with the severely mentally ill population for several years, then transitioned to a private practice setting that offered the interventional options of transcranial magnetic stimulation and ketamine infusion.  Most recently, Dr. La Haie has worked at the Phoenix VA treating veterans, with focus on PTSD, depression and anxiety.  Dr. La Haie has held an academic appointment at the University of Arizona Medical School and has spent her professional career supervising/teaching medical students and psychiatry residents.

Dr. La Haie's practice focuses on medication management and providing psychoeducation to her patients. However, if indicated, Dr. La Haie may believe that additional therapy is also needed and ask that you bring a therapist into your care team to provide the best outcome.

Dr. La Haie has experience treating a large variety of mental health conditions across a variety of populations. She strongly believes in tailoring treatments through a holistic and patient-centered approach based on individual and multi-faceted histories. Dr. La Haie looks forward to working with you.

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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. Laura Obler is board-certified in adult psychiatry. She received her medical degree from David Geffen School of Medicine at UCLA in Los Angeles, California, where she stayed to complete her psychiatry residency at the UCLA Semel Institute for Neuroscience. During residency she received specialized training in reproductive psychiatry (the treatment of women who are considering pregnancy or are pregnant or postpartum) and acted as Chief Resident of the Women's Life Center at UCLA. Dr. Obler has experience working with a diverse group of patients. She has previously worked in community clinics in the greater Los Angeles area and as a staff psychiatrist at UCLA. She prefers a holistic approach to psychiatric treatment and therefore uses a combination of medication management and talking therapies to treat patients. Techniques she may utilize include cognitive behavioral therapy, experiential psychodynamic therapy, mentalization based therapy, and medical hypnosis.