Dr. Taeger has been practicing orthodontics in Florissant, Missouri, since 1978. After graduating from Rockford College, he received his Doctor of Dental Surgery degree from Howard University and orthodontic degree (Master of Science in Dentistry) from Saint Louis University. Both he and his wife, Susan, decided to stay in Saint Louis when Dr. Taeger was invited by Dr. Vernon Truetzel and Dr. George Uchiyama, both world-renowned orthodontic practitioners and educators, to join their practices. These gentle giants in orthodontics served as Dr. Taeger's mentors during his orthodontic residency.

His connection with Saint Louis University has been longstanding. He received his teaching appointment in the Center of Advanced Dental Education, Department of Orthodontics, in 1982 and currently holds the position of Professor of Orthodontics (adjunct). He teaches the Saint Louis University Tweed-Merrifield Technique Course, a technique used by orthodontists worldwide.

His experience as an educator has allowed him to share what he has learned over the last 38 years with orthodontists around the world, having traveled several times to Brazil and Taiwan where he lectured and gave courses. His trips to the People's Republic of China have taken him to the orthodontic departments of Peking University in Beijing, Jiao Tong University in Shanghai, Nanchang University in Nanchang, Zhejiang Chinese Medical University in Hangzhou, and most recently in August, 2015, to the Ningxia People's Hospital in Yinchuan, Fuzhou University School of Stomatology in Fuzhou, and the Orthodontic Department of Guangzhou University in Guangzhou where he lectured. His love for teaching has also allowed him to serve on the Teaching Staff of the Charles H. Tweed International Foundation for Orthodontic Research in Tucson, Arizona. Here, at three times a year, over 125 orthodontists from around the world come together to learn fundamental orthodontic techniques and the latest the Tweed-Merrifield orthodontic philosophy has to offer.

Dr. Taeger is an Elder in the Presbyterian Church of America. He has held the positions of Teaching Leader in Bible Study Fellowship International and both Teaching Director and Area Director in Community Bible Study for many years. Both he and his wife attend Twin Oaks Presbyterian Church.  When not doing orthodontics, Dr. Taeger loves to be with his family, work on his computer, travel, go on a good fishing trip, and read a good book.