FACP, FCCP, FAASM

Dr. Collen is a Sleep Medicine physician at the Uniformed Services University and Walter Reed National Military Medical Center in Bethesda, Maryland.  He has been the program director for their Sleep Medicine Fellowship program for 7 years.  Dr. Collen graduated with a BS in Biology from the University of California at Riverside in 1998 and…

Grace Pien, MD, MSCE is an Assistant Professor of Medicine at Johns Hopkins School of Medicine, where she is the program director of the Sleep Medicine fellowship program and medical director of the Sleep Medicine clinical practices at Johns Hopkins Hospital and Bayview Medical Center. Dr. Pien completed fellowship training in sleep medicine, pulmonary medicine…

Agha W. Mirza is a senior staff member at the Johns Hopkins University School of Medicine, deputy lab director of AASM-accredited sleep disorders center at the Johns Hopkins Bayview Medical Center, and adjunct faculty member of a CAAHEP accredited polysomnography program at the Community College of Baltimore County. Agha is a Hopkins trained, board-certified polysomnographer…

Christen Spencer has been in sleep for 10 years and is currently the manager for the Center for Interdisciplinary Sleep Research and Education (CISRE) at Johns Hopkins University in Baltimore, Maryland. Christen started off her sleep career in Richmond, VA and has also worked in Delaware. She served as an instructor for the first CAAHEP-accredited…

PhD, RPSGT, RST

Hema Kaur Sidhu, PhD, RPSGT, RST completed her PhD (Research on Parkinsonism using Methamphetamine in animal model) at Amritsar, India.  She then pursued research as a Post-Doctoral fellowship at Molecular Neuropsychiatry Section NIDA/NIH, Baltimore, MD.  In 1997, Hema moved to research/industry at Chembio Diagnostics, Medford , NY and was one of the three members of…

Steven C. Scherr, D.D.S. is dental director of AADSM accredited dental sleep medicine facilities in Pikesville and Bel Air, providing oral therapeutics for the treatment of obstructive sleep apnea and snoring.  He is a Diplomate of the American Board of Dental Sleep Medicine (not an ADA recognized specialty), and is currently Secretary-Treasurer of the Board…

Kala Davis-McDonald, MD is the Chief of Pulmonary Medicine and the medical director of the Sleep Center at St. Agnes Hospital. She established the St. Agnes Sleep Clinic and has conducted educational forums and programs on sleep in the Baltimore City area. She is the Treasurer and one of the founding board members of the…

John H. Mathias II has been a strategic leader in the field of sleep medicine for more than twenty years. John’s name is synonymous with Sleep Services of America, Inc. (SSA), and he currently serves as their President. Johns Hopkins recently merged SSA into MedBridge Healthcare for which John Mathias has also become their Chief…

RPSGT, RST

Michelle Guzman has been with the Division of Pulmonary, Critical Care and Sleep Medicine at Johns Hopkins University for nearly 5 years. Her team’s sleep research examines physiology and treatment for disordered breathing in study populations that include bariatric surgery, COPD, CF, and non-alcoholic fatty liver disease, among others. In her role as research manager…

MD, FCCP, FAASM

Dr. Conaway is a physician partner with Pulmonary & Critical Care Associates of Baltimore (PCCAB), a large private practice physician group specializing in Pulmonary, Critical Care, and Sleep Medicine Services.  Dr. Conaway is a graduate of the University of Maryland School of Medicine.  He completed both residency and fellowship at NYU Medical Center.  He trained…