After graduation, he attended the University of Missouri in Columbia, Missouri, and majored in biology.Once undergraduate studies were completed, he attended Southern Illinois University School of Dental Medicine in Alton, Illinois. Here Dr. Jeff learned all the basic skills in dentistry and even a bit of orthodontics! He was named Class President in both his sophomore and junior years, and was Student Body President during his senior year. In addition to these positions, he held various committee positions as well as a spot on the prestigious Dean’s Advisory Board. After graduating from SIU Dental School with honors (Cum Laude) in 1998, Dr. Mastroianni accepted a position at Saint Louis University to study Orthodontics. After two and a half years of study, he finished the program and earned a masters degree.
Dr. Jeff is known for his zany sense of humor as well as the caring way he treats each and every person he meets. He is thankful for all the genuine compliments he and his staff receive every day and the entire team uses those kind words as motivation to reach higher levels of service and care for our patients. He is also very involved in the local community, donating orthodontic treatment to schools and other organizations to help raise money for good causes.Dr. Jeff has been married to his lovely wife Julie for 11 years, and they have 2 daughters, Anna (8) and Nikki (5). Dr. Jeff has been active in local civic organizations, as well as the local Dental Society. In his spare time he likes to spend time with family, golf, read, snow ski, travel, and watch almost any type of sporting event.
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