Meet the Team

Our providers represent a unified group of professionals assembled for the common goal of providing our patients with a complete solution to their needs. Find out more about our experience and backgrounds.

Robert Roberts, DO

Dr. Robert RobertsDr. Roberts is board certified in Otolaryngology, head and neck surgery. Dr Roberts has special interest in nose and sinus disorders, head and neck surgery including thyroid and parathyroid surgery, and the medical and surgical treatment of obstructive sleep apnea.

James Chan, MD

Dr. James ChanAs a double board certified physician (in both Otolaryngology and Facial Plastic Surgery) Dr. Chan brings to our practice experience in the full gamut of Otolaryngology—Head and Neck Surgery. He has special interest in aesthetic and reconstructive procedures of the face, head, and neck including reconstructive procedures following facial trauma and skin cancer excision.

Hillary Lowenstein, MD

Dr. LowensteinDr. Lowenstein completed her Neurology residency at Oregon Health and Science University and Sleep Medicine fellowship at the University of Michigan, which is one of the most prestigious and multidisciplinary Sleep Medicine programs in the country. She had the honor of closely working with nationally and internationally renowned experts in the Sleep Medicine field.

Robert Stafford, DDS

Dr. StaffordDr. Robert Stafford is one of 5 dentists in Oregon who has earned the prestigious accreditation through the American Academy of Cosmetic Dentistry.  This honor requires highly skilled and technique savvy experience while passing many rigorous cases through a peer review process.  Helping people receive not only the look they want, but also the functionality and durability of beautiful and life-changing smiles is a passion that Dr. Stafford brings to those he serves.

John Topping, MD

dr-toppingDr. Topping grew up in the Seattle area and attended undergraduate and medical school training there before performing his specialty training in Chicago. He has lived in Oregon since finishing his residency and loves the opportunity to combine his professional life with his recreational activities. “One of the things I love about my specialty is being able to treat all age groups and to really listen to their needs so I can individualize their care.” He is married and has two children. He enjoys spending time with his family, snow skiing, soccer, fly fishing and playing jazz guitar. Dr. Topping practices the full spectrum of Ear, Nose & Throat medicine and surgery as well as Facial Plastic Surgery.