Dr John Sinclair

Dr. John Sinclair serves the patients of Windstone Dental with excellence, compassion, and dedication. Originally from Mendenhall, Mississippi, he graduated magna cum laude with a Bachelor of Science in Biology from Belhaven University in 2017 before earning his Doctor of Dental Medicine magna cum laude from the University of Mississippi School of Dentistry in 2021. Throughout dental school, Dr. Sinclair distinguished himself both academically and clinically. He was inducted into the Omicron Kappa Upsilon National Dental Honor Society and The Honor Society of Phi Kappa Phi, and he received the Robert M. Hearin Foundation Best and Brightest Award as well as UMMC Honors in Research. Following graduation, Dr. Sinclair was invited back to the University of Mississippi School of Dentistry as an instructor in the Care Planning and Restorative Sciences Department, where he taught restorative dentistry and removable prosthodontics for a semester prior to beginning Active Duty. He received a commission in the United States Navy, serving with distinction for four years as a Dental Officer. His assignments included tours aboard the aircraft carrier USS John C. Stennis (CVN 74) and the amphibious warfare ship USS Tortuga (LSD 46), where he provided comprehensive dental care to sailors and Marines in diverse and challenging environments, while also developing his leadership and adaptability in high-demand situations. Dr. Sinclair is an active member of the American Dental Association, the Mississippi Dental Association, and the Academy of General Dentistry, remaining dedicated to continuing education and advancing his skills to better serve patients. Outside of dentistry, Dr. Sinclair’s greatest joy is his family. He met the love of his life, Dr. Katelyn Allen Sinclair, while in dental school, and together they are blessed with a beautiful daughter, Emma. As a family, they enjoy all things outdoors and love exploring national parks whenever possible.