Scott G Williams


Lieutenant Colonel, Army

Department of Primary Appointment:
School of Medicine
Deputy Director of Medicine
Location: Fort Belvoir Army Community Hospital, Ft Belvoir, VA
Research Interests:
Office Phone


2004 M.D. Uniformed Services University
2000 B.S. (cum laude) University of North Carolina, Chapel Hill


Lieutenant Colonel Scott Williams is the Deputy Director for Medicine at Fort Belvoir Community Hospital.

LTC Williams was born in Bournemouth, England and was raised in Princeton, New Jersey. He graduated and was commissioned into the U.S. Army from The University of North Carolina at Chapel Hill in 2000. LTC Williams received his medical doctorate from the Uniformed Services University of the Health Sciences in 2004. He completed a dual residency in Internal Medicine and Psychiatry at the Walter Reed Army Medical Center in 2009. He completed fellowship training in Sleep Disorders Medicine at the Walter Reed National Military Medical Center in 2012.

Upon graduation from fellowship, Dr. Williams assumed duties as Chief of Sleep Medicine at Womack Army Medical Center. While there he served on the AASM Education Committee and obtained an academic appointment as assistant professor of medicine at USUHS, later rising to the rank of associate professor of Medicine (primary) and Psychiatry (secondary). He increased his involvement with the AASM after returning to WRNMMC to take charge of the Sleep Disorders Center. He is now the chair of the Sleep Technologist and Respiratory Therapist Education Committee and is part of the gold standard panel for the Inter-Scorer Reliability program.

Dr. Williams continues to remain active in research, particularly in the area of overlap amongst OSA, PTSD, TBI and insomnia. He has published over 25 peer-reviewed manuscripts, 6 books chapters, and 19 abstracts. He is part of the U.S. Army Performance Triad working group, an organization tasked with implementing policies and procedures aimed at imparting common sense approaches to the struggles faced by Servicemembers in areas of nutrition, activity and sleep. Work-rest schedules, extended duty policy, circadian optimization and fatigue management are a few of the top priorities.

His military awards and decorations include the Bronze Star Medal; Meritorious Service Medal with two bronze oak leaf clusters; Joint Service Commendation Medal; Army Commendation Medal with one bronze oak leaf cluster; Army Achievement Medal with three bronze oak leaf clusters; National Defense Service Medal; Iraq Campaign medal with two bronze service stars; Global War on Terrorism Service Medal; Army Service Ribbon; and the Overseas Service Ribbon. He is authorized to wear the Order of Military Medical Merit medallion; Army Flight Surgeon Badge; Parachutist Badge; Air Assault Badge; Meritorious Unit Commendation; and the German Armed Forces Badge for Military Proficiency.
His civilian awards include the Martin Fenton award for top IM/Psych graduating resident and the NCC Psychiatry Research award. He is a Fellow of the American College of Physicians, the American Psychiatric Association, and the American Academy of Sleep Medicine.

Career Highlights: Positions, Projects, Deployements, Awards and Additional Publications

Wickwire EM, Williams SG, Roth T, Capaldi VF, Jaffe M, Moline M, Motamedi GK, Morgan GW, Mysliwiec V, Germain A, Pazden RM, Ferziger R, Balkin TJ, Macek TA, MacDonald ME, Scharf SM, Lettieri CJ. Sleep, sleep disorders, and mild traumatic brain injury: what we know and what we need to know: Findings from a national working group. Neurotherapeutics, 13(2):403-17, 2016

Williams SG, Collen J, Orr NH, Holley AB, Lettieri CJ. Sleep disorders in combat-related PTSD. Sleep and Breathing, 19(1):175-82, 2015

Ioachimescu OC, Wickwire EM, Harrington J, Kristo D, Arnedt JT, Ramar K, Won C, Billings M, DelRosso L, Williams SG, Paruthi S and Morganthaler T. A dozen years of American Academy of Sleep Medicine (AASM) international minifellowship: Program evaluation and future directions. Journal of Clinical Sleep Medicine 10(3):331-4, 2014

Williams SG, Lettieri CJ, Dombrowsky JW. CPAP: Enhancing its use. Current Respiratory Care Reports 1(2):131-8, 2012

Williams SG, Wynn GH, Cozza KL, Sandson NB. Med-psych drug-drug interactions update: Cardiovascular medications. Psychosomatics. 48(6):537-47, 2007

Williams SG. Internal Medicine. In: Drug Interaction Principles for Medical Practice, Third Edition. KL Cozza, JR Oesterheld and GH Wynn, Eds. American Psychiatric Publishing, Inc., Washington, DC, 2008

Cozza KL, Williams SG, Wynn GH. Psychopharmacologic Treatment Issues in AIDS Psychiatry. In: Comprehensive Textbook of AIDS Psychiatry. MA Cohen and JM Gorman, Eds. (pp. 455-485). Oxford University Press, New York, New York, 2008

Mysliwiec V, Williams SG, Baxter T, Germain A, O’Reilly B, Luxton D. Preventing sleep casualties: Understanding the unique aspects of sleep and sleep disorders in active duty service members. Combat Stress 3:4, 2014

Williams SG. Posttraumatic stress disorder, comorbid sleep disturbances and nocturnal violence: the importance of a holistic approach to treatment. Journal of Sleep Disorders and Therapy 2:134, 2013

Williams SG, Lettieri CJ. Violent behavior during sleep. Journal of Sleep Disorders and Therapy 2:1-5, 2013

Representative Bibliography

Lettieri CJ, Williams SG, Collen JF, Wickwire E. Treatment of obstructive sleep apnea: Achieving PAP adherence and dealing with complications. Sleep Medicine Clinics. (in press)

Lettieri CJ, Williams SG, Collen J. Obstructive sleep apnea syndrome and post-traumatic stress disorder: Clinical outcomes and impact of PAP therapy. Chest 149(2):483-90, 2016

Williams SG, Collen J, Wickwire E, Lettieri CJ, Mysliwiec V. The impact of sleep on Soldier performance. Current Psychiatry Reports, 16(8):459, 2014

Dombrowsky JW, Williams SG, Wickwire E, Lettieri CJ. Strategies to Enhance Adherence to PAP Therapy for OSA. Clinical Pulmonary Medicine 20(1):21-8, 2013

Williams SG, Alinejad NA, Williams JA, Cruess DF. Statistically significant increase in weight caused by low-dose quetiapine. Pharmacotherapy 30(10):1011-5, 2010

McDowell J, Williams SG, Funderburg NT, Eulgem T, Dangl JL. Genetic analysis of developmentally regulated resistance to downy mildew (Hyaloperonospora parasitica) in Arabidopsis thaliana. Molecular Plant-Microbe Interactions 18(11):1226-34, 2005

Cozza KL, Wynn G, Wortmann G, Williams SG. Update to: Psychopharmacologic Treatment Issues in AIDS Psychiatry. In: Comprehensive Textbook of AIDS Psychiatry, second edition. MA Cohen and JM Gorman, Eds. (In press)

Wickwire E, Williams SG. Medical Comorbidities Associated with Obstructive Sleep Apnea. In: Sleep in Neurology. D. Kirsch, Ed. Oxford University Press, New York, 2013

Curley JL, Williams SG. Oncology. In: Drug Interaction Principles for Medical Practice, Third Edition. KL Cozza, JR Oesterheld and GH Wynn, Eds. American Psychiatric Publishing, Inc., Washington, DC, 2008

Williams SG, Collen J, Mysliwiec V, Wickwire E, Ryan B, Lim I. Management of comorbid sleep disorders in patients with posttraumatic stress disorder. Federal Practitioner, 32(5):18-24, 2015