ACENT Alaska Center for Ear Nose and Throat
3841 Piper Street T-230
Anchorage, AK 99508
Phone: (907) 279-8800
Fax: (907) 279-8810
Monday–Thursday: 8 a.m.–5 p.m.
Friday: 8 a.m.–4 p.m.
Dwight M. Ellerbe, MD, FACS, FAAP
Dr. Ellerbe is board certified in Pediatrics, Facial Plastic and Reconstructive Surgery, and Otolaryngology – Head & Neck Surgery. He began his career as a pediatrician, then completed a residency in Otolaryngology – Head & Neck Surgery, followed by a clinical fellowship in Facial Plastic and Reconstructive Surgery at Johns Hopkins School of Medicine. Dr. Ellerbe served his country in the U.S. Air Force, retiring as a colonel. In addition to his work, his passions include sailing and fishing.
David Andrews, MD
David Andrews, M.D. graduated with honors from Duke University and then worked as a television news producer and reporter for 8 years prior to medical school. He earned his medical degree at Rush Medical College in Chicago, and then completed residency in Otolaryngology – Head and Neck Surgery at the University of Chicago. After residency he joined the ENT staff at Alaska Native Medical Center, where he practiced for 14 years and served as the medical director of the ENT department from 2019 to 2022 before joining ACENT.
Shannon Fraser, MD
Shannon Fraser, MD is a board-certified Otolaryngology-Head and Neck surgeon. She graduated with honors from Cornell University in Ithaca, NY and earned her medical school degree from the Johns Hopkins School of Medicine in Baltimore, MD. Dr. Fraser completed her residency training at the University of Pittsburgh Medical Center in Pennsylvania. She has practiced general otolaryngology since finishing her residency in 2015 and is interested in all aspects of ENT including adult and pediatric care.
Stephen B. Schaffer, MD
Dr. Schaffer is board certified in Otolaryngology – Head & Neck Surgery. After earning a master's degree in choral music from University of Arizona, he graduated with honors from medical school at the same institution. Dr. Schaffer completed his residency in Otolaryngology — Head & Neck Surgery at Tulane University Medical Center in New Orleans. His interest in singing informs his specialized interest in the treatment of voice disorders at ACENT.
Mark B. Lorenz, MD
Dr. Lorenz is board certified in Otolaryngology – Head & Neck Surgery. A magna cum laude graduate of Notre Dame University, Dr. Lorenz earned his medical degree from The Ohio State University College of Medicine. He then completed a residency in Otolaryngology — Head & Neck Surgery at the University of Michigan in Ann Arbor. He is fellowship trained and board certified in neurotology, which is a subspecialty concerned with treating neurological disorders of the ear. He joined the ACENT team in 2015.
Christopher Kowalski, MD
Dr. Kowalski earned his medical degree from the University of Iowa College of Medicine in 2013 after graduating with honors from the University of Wisconsin. He completed his residency in Otolaryngology—Head & Neck Surgery at the University of Iowa in Iowa City, IA in 2018. Dr. Kowalski is trained and practices in all aspects of otolaryngology including sinus surgery, otologic surgery, and pediatric otolaryngology.
John Kokesh, MD
John Kokesh, MD, completed medical school at the University of Washington in 1988. He completed 2 years of General Surgery training at Virginia Mason Medical Center in Seattle, Washington, and then in 1994 completed residency in Otolaryngology—Head & Neck Surgery at the University of Washington.