The San Diego Sinus Center is a part of Coronado Ear, Nose & Throat.

We are a practice focused on the application of the latest advances as well as the provision of the best possible patient experience. We value your time and strive to see patients exactly on time, as you should expect. We do not overbook.

We pride ourselves on the adoption of the latest technologies that will improve your treatment. This includes an in-office sinus CT scanner which allows a detailed evaluation of the sinuses in less than 30 seconds and emits 82% less radiation than conventional scanners. We also use advanced image guidance navigation technology that allows Dr. Scheurer to see exactly where his instruments are inside your nose at all times as he performs procedures. These technologies are available in very few ENT offices.

We have no physician extenders such as physician assistants or nurse practitioners in the practice. You will see a board-certified otolaryngologist (Dr. Scheurer) exclusively for all of your ENT care.

We invite a frank discussion of your concerns and questions with the goal of ensuring you have a full understanding of your medical problem. A thorough understanding is important in helping you follow through on your treatment recommendations and in communicating how you are doing with the treatment recommended.

Coordination with primary care physicians is very important. Accordingly, we communicate findings and recommendations to your primary care doctor in a timely fashion so that everyone is “on the same page” and we are always available to provide additional information about your care as needed.

Medicare and the following PPOs are currently accepted: United Healthcare, Tricare, Blue Cross, Blue Shield, and HealthNet.


Mark M. Scheurer, M.D. is a native of Hyannis, Massachusetts and a 1985 graduate of the University of Massachusetts at Amherst with a Bachelor of Arts degree. After College, he worked briefly in the insurance industry before joining the U.S. Navy to fulfill a dream of flying. During flight training he earned both the Golden Tailhook Award for the top carrier landing performance and the Best Bomber Award for the best air-to-ground ordnance delivery in his class. After designation as a pilot (a Naval Aviator) in Beeville, Texas, he flew F-14 Tomcats in Virginia Beach, Virginia.

Subsequently, he attended medical school at The Uniformed Services University of the Health Sciences (USUHS) in Bethesda, Maryland where he received his M.D. degree in 1995. While at USUHS, he received awards for the most outstanding academic performance in his class in the fields of Preventive Medicine and Physiology.

He completed a General Surgery internship at the San Diego Naval Hospital and then moved to Meridian, Mississippi where he flew the A-4 Skyhawk and provided Primary Care, Aerospace, and Preventive Medicine services to his squadron. He also worked as an Emergency Medicine staff physician at the Anderson Regional Medical Center in Meridian from 1997-2001.

Dr. Scheurer returned to San Diego in 2001 for a residency in Otolaryngology (ENT) at the San Diego Naval Hospital and graduated in 2006. He remained in the San Diego area after residency and provided ENT, Aerospace and Preventive Medicine services to helicopter squadrons at NAS North Island in Coronado, California, while learning to fly the MH-60S Seahawk helicopter.

He retired from the Navy in 2011 and started private practice in the South Bay. In 2014 he opened Coronado Ear, Nose and Throat to provide needed ENT services to the residents of the island and surrounding communities.

Dr. Scheurer is a member of the American Rhinologic Society, a physician group dedicated to the education and advancement in treatment of nasal and sinus conditions. He is also actively involved in the invention of new surgical devices and has several patents. He was awarded the first of these in September 2014 for a novel middle ear prosthesis to cure certain causes of deafness. His most recent invention is a device designed for sinus passageway dilation and is patent pending