Our Team
Andrea Williams, LPC
Clinical Director | Dunwoody
Andrea Williams joined the Talbott Recovery team as a primary therapist at Talbott Recovery at Dunwoody in May 2014. After several years of experience working with individuals and their loved ones to build healthier lives without the burden of addiction, she transitioned to Clinical Director in July 2019. A believer in building strong, healthy connections…
Navjyot Singh Bedi, MD
Medical Director | Main Campus
Dr. Navjyot Singh Bedi, Medical Director of Talbott Recovery, trained in a medical sciences psychiatry residency in India. He completed a second psychiatry residency in the U.S. where he was chief resident, making him a valuable part of the treatment team in Talbott’s addiction and co-occurring psychiatric disorders treatment program. After completing residency he served…
Constantine Galifianakis, MD
Psychiatrist | Main Campus
Dr. Constantine Galifianakis joined the team at Talbott Recovery in July of 2017. Originally from Salisbury, Maryland, he earned his medical degree from the University of Maryland School of Medicine and completed his residency in general psychiatry at Emory University. He then returned to the University of Maryland for his fellowship in addiction psychiatry. His…
Richard P. Amar, MD
Staff Addiction Psychiatrist | Main Campus
Dr. Richard Amar joined Talbott Recovery as a Staff Addiction Psychiatrist in 2011. He obtained his medical degree from MCP-Hahnemann University School of Medicine in Philadelphia, Pennsylvania, and completed his General Psychiatry Residency and Addiction Psychiatry Fellowship at Emory University School of Medicine in Atlanta, Georgia. Prior to joining the Talbott staff, Dr. Amar worked…
Haley Walters Hill
Director of Admissions | Main Campus
Haley Hill, Talbott Recovery’s Director of Admissions, hails from Clarkesville, Georgia. She earned her BS degree from North Georgia College in Dahlonega and has been working in addiction treatment since her early twenties. She’s worked with teenagers in recovery, ran an emergency shelter for teens and worked in dual diagnosis for the past 15 years…
Bennett C. Wilson
Alumni Coordinator | Main Campus
Ben Wilson was born and raised in Orlando, Florida. He served as a Medic in the US Army, and also worked in the hospitality industry (front & back of the house) all over Florida. After coming to Talbott in May 2007, (he is also an alumni) he felt a passion and a calling to help…
Oksana Kershteyn, MD
Staff Psychiatrist | Talbott Dunwoody & Medical Director | Foundations Roswell
Dr. Oksana Kershteyn joined the Talbott Recovery staff in early 2012, where she serves as staff psychiatrist at Talbott Dunwoody. Since July 2018, she also fills the role of medical director at Foundations Roswell. Originally from Siberia, Russia, she graduated from Russia’s top medical school, the Siberian State Medical University, where she also completed her…
Dr. David Prewett
Clinical and Aviation Psychologist
David Prewett is a Clinical and Aviation Psychologist and has been in clinical practice for 30 years with a particular focus on addiction issues in professionals. As a consultant to Talbott Recovery Campus in Atlanta, GA, he has performed well in excess of five thousand evaluations for medical boards, bar associations and other state regulatory…
