Dr. Diab is a Board-Certified Dermatologist and a Fellow of the American Academy of Dermatology.

Dr. Diab's academic journey commenced with a Bachelor of Science in Chemistry from Damascus University in Damascus, Syria. Expanding his expertise, he earned a second Bachelor of Science in Biology-Medical Technology from Ashland University in Ashland, Ohio in 1986. Building on this foundation, Dr. Diab earned his Master’s Degree in Clinical Lab Sciences in 1988. Continuing his pursuit of excellence, he earned his Doctor of Medicine from Northeast Ohio Medical University in 2004, culminating in the completion of his residency program at The Ohio State University in 2008.

Dr. Diab's achievements extend beyond his academic pursuits, garnering well-deserved recognition. In 2003, he was honored as a junior year inductee and treasurer of Alpha Omega Alpha. That same year, Akron General Hospital acknowledged his outstanding contributions with the Distinguished Physician Scholarship. His commitment to excellence earned him the prestigious title of Cincinnati Magazine Top Doctor in 2012 and consecutively from 2015 to 2023.