Dr. Guirguis went on to complete his orthodontic training at the University of the Pacific Arthur A. Dugoni School of Dentistry, earning a Certificate in Orthodontics and a Master of Science in Dentistry.
Dr. Guirguis is a Diplomat of the American Board of Orthodontics, and is a member of the following organizations:
- Pacific Coast Society of Orthodontists
- Southern Nevada Dental Society
- Nevada Dental Association
- American Dental Association