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Thomas O'Brien, DO

Staff Psychiatrist
Languages
English
Conditions Treated
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma

Education and training

  • Midwestern Univ., Chicago College of Osteopathic Medicine (Doctor of Osteopathic Medicine)

Get to know

Thomas O'Brien, DO

Dr. Thomas O’Brien holds a Bachelor of Science degree from the University of Wisconsin–Madison and earned his medical degree from Midwestern University Chicago College of Osteopathic Medicine. He completed his psychiatry residency at Loyola University Medical Center. Dr. O’Brien has experience practicing across outpatient, PHP, IOP, and inpatient settings.

He strives to create a supportive environment where patients feel heard, respected, and understood. His approach emphasizes a holistic, whole-person method to healing, guided by the patient’s own goals and values. Dr. O’Brien integrates psychotherapy with medication management, drawing on his background in psychodynamic psychopharmacology and acceptance and commitment therapy.

Dr. O’Brien focuses on understanding each patient as a whole to create individualized treatment plans. This begins with a comprehensive history during the initial session to identify biopsychosocial factors. Treatment is then tailored to align with the patient’s unique goals and values, promoting meaningful progress.

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Dr. Illise Perlmutter is the Director of Child and Adolescent Psychiatry at Talkiatry. She is double board-certified in child and adolescent psychiatry and adult psychiatry. Before joining Talkiatry, Dr. Perlmutter was the Chair of Behavioral Health and Addiction Services at Bergen New Bridge Medical Center. Prior to Bergen New Bridge, she was the Director of Inpatient Psychiatry at Montefiore Medical Center-Wakefield, in New York. Over 35 years, Dr. Perlmutter has held numerous leadership roles with some of the largest hospital systems in the New York Metro Area. Dr. Perlmutter is a Distinguished Life Fellow of the American Psychiatric Association, a Fellow of the American College of Psychiatrists, and a Distinguished Fellow of the American Academy of Child and Adolescent Psychiatry. She has received awards for her contributions both locally and nationally. Dr. Perlmutter was included in Castle Connolly's "America's Top Doctors” list from 2006-2011 and 2017, as well as "Best Doctors in America” from 2009- 2012. Dr. Perlmutter received her MD from George Washington University School of Medicine and Health Sciences. After an internship in pediatrics, she completed a residency in Psychiatry at Mt. Sinai Medical Center followed by a fellowship in Child and Adolescent Psychiatry at Columbia University/New York State Psychiatric Institute. Dr. Perlmutter has held leadership roles in several academic institutions and is a Clinical Associate Professor of Psychiatry and Behavioral Science at George Washington University School of Medicine and Health Sciences in Washington, D.C. Dr. Perlmutter has authored numerous publications and research articles and has lectured and presented extensively on clinical, epidemiologic, and psychopharmacologic issues in child and adolescent psychiatry. She has made frequent media appearances addressing topical issues in disaster psychiatry during the course of her work in disaster psychiatry outreach.

Diane Lewis, MD

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Background and credentials

Dr. Diane Lewis is board-certified in general psychiatry by the American Board of Psychiatry and Neurology. She earned both her undergraduate and medical degrees at Texas A&M University (College Station and Temple, TX) before completing her general psychiatry residency at UT Southwestern - Austin Programs (now Dell Medical School residency programs). After her residency, she practiced for eight years as a staff psychiatrist at the University of Texas' student counseling center. She also has experience working in hospital admissions and emergency department settings.

Treatment approach

Dr. Lewis employs a medication-management-focused approach typically paired with supportive therapy during 30-minute follow-up visits. She strongly values a collaborative treatment approach, frequently encouraging patients to incorporate additional therapy for the best outcomes. Her primary specialty is college mental health, treating patients aged 18-45 with a range of mental health conditions from mild to complex. Dr. Lewis emphasizes authenticity, compassion, and recognizing patients beyond their diagnoses, providing care tailored to individual circumstances and goals.

What you can expect in a first visit

During a first visit, patients can expect Dr. Lewis to conduct a thorough evaluation, carefully listening to their concerns, and considering their symptoms within the broader context of their lives. Her patients appreciate her down-to-earth and compassionate communication style. She aims to create an environment where patients feel understood, respected, and actively involved in shaping their personalized treatment plan, often recommending additional therapy support when beneficial for achieving optimal outcomes.

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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Mallory Jacobs, MD

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Austin Davidson, DO

Staff Psychiatrist

Dr. Austin Davidson grew up in Nashville, TN before moving to CA for his undergraduate studies at the University of California, Irvine where he was on the rowing team. He then attended medical school at the Alabama College of Osteopathic Medicine. He completed his psychiatry residency training at the University of Nevada, Las Vegas.

When he’s not practicing medicine, he enjoys spending time with his family, working out in his garage gym, and playing board games.

Dr. Davidson focuses on treating the whole patient. He believes medication is just one of the many important aspect to address when concerning mental health. Therapy, lifestyle changes, diet, and exercise are also equally important modalities that must be considered in treatment.  

Dr. Davidson’s treatment process typically begins with an in-depth history that focuses on getting to know his patients. He prefers to take his time with each patient and to make sure they feel they are heard. He believes the treatment process is a team effort and he takes time to come up with treatment plans that both he and his patients are comfortable with.

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Specialties
Medication Management
ADHD
Anxiety
Bipolar Disorder
Depression
Obsessive-compulsive disorder (OCD)
PTSD/Trauma
States
New York
Illinois
Languages
English
Takes insurance
Virtual visits
years experience