Meet Our Doctors
Madison, AL

Dr. Glenn Rudolph

Madison

A graduate of Muscle Shoals High School and Huntingdon College, Dr. Rudolph earned his Doctor of Dental Medicine Degree at UAB School of Dentistry in 2013. Upon graduation, he joined the SRD team, where he practiced dentistry and provided exceptional dental care to residents of the Shoals. In 2016, Dr. Rudolph moved to accompany his wife as she completed her medical training. Together, they have lived in Kentucky, Florida, and Tennessee and have recently settled in Madison, Alabama with their two children. Dr. Rudolph rejoined our team at Singing River Dentistry in 2022 and is currently serving in our Shoals area and Madison locations.

Dr. Bradee Sittason

Madison, Athens

Dr. Bradee graduated from Auburn University with her degree in Biomedical Sciences. She then attended the University of Alabama at Birmingham School of Dentistry where she met her husband, Payton. She and Payton love spending time with their family and friends, traveling, experiencing new things, and meeting new people. When Dr. Bradee isn’t tending to smiles, she loves to snuggle with her adorable mini dachshund, Hank!

Dr. Evelyn Coln

Madison, Athens

Dr. Evelyn Coln attended Birmingham-Southern College, where she earned a degree in biology and physiology. During her college years, she was actively involved in the dance team and later became a cheerleader. It was during this time that she met her husband, Bo Coln, who was a basketball player. After completing her undergraduate studies, Dr. Coln pursued a master's degree in public health with a focus on Epidemiology at UAB. Subsequently, she continued her education at UAB by attending dental school there. As a child, she had a fear of dentists, but finding a dentist who helped alleviate those fears inspired her to pursue a career where she could assist others in overcoming their dental anxieties.

Faith holds a central place in Dr. Coln's life, and she is an active member of the Church of the Highlands. Faith guides how she interacts with others and is her source of strength. Dr. Coln is a proud parent of four children, aged 17, 15, 13, and 9, all of whom are homeschooled. Their family includes two dogs, Jacques (a Portuguese water dog) and Gryffendor (a Havanese). Jacques previously served as a therapy dog at Dr. Coln's former practice. Additionally, they have two cats, Nugget and Hufflepuff. Outside of work Dr. Coln has a deep love for the outdoors and enjoys both camping and hiking.

Dr. Diana Long

Madison

Dr. Diana Long was born and raised in Florence, Alabama. She graduated from Shoals Christian School in 2003, and earned a bachelor’s degree in Finance from the University of South Alabama in 2007. She then relocated to New York state for dental school and earned her Doctorate of Dental Surgery (D.D.S.) degree from the University at Buffalo School of Dental Medicine, which is ranked as a Top Top dental school in the country.

Dr. Long was awarded accolades by the American Academy of Orofacial Pathology and the American Academy of Maxillofacial Radiology, among others, for her excellence in patient care during professional school.

Following dental school, she pursued advanced training at Louisiana State University and Earl K. Long Hospital, through a General Practice Residency, where she earned certifications in intravenous and oral sedation, learned advanced restorative techniques & clear aligner orthodontics, and gained a very strong skill set in dental surgery and TMJ therapies.

Dr. Diana has a strong commitment to continuing education. She earned the award of Fellow in the Academy of General Dentistry (F.A.G.D.), a prestigious award that sets apart elite dentists who are committed to excellence in maintaining the highest standards in patient care and evidence-based dentistry. Currently there are only 6% of general dentists in the world who have earned this accolade. She considers herself a lifelong learner, and especially enjoys traveling for her continuing dental education.

Dr. Long is also an active member of her state and national Dental Association, the Academy of General Dentistry, and the Christian Medical and Dental Society. She has participated in several dental outreach missions, both within the U.S. and South and Central America. She is also a local provider for Donated Dental Services and enjoys volunteering with the Junior League of Jackson.

After she & her husband, Dr. Andres Pappa, completed their dental residency programs at LSU, Dr. Andres was recruited to become a full-time faculty member at the Ole Miss Medical Center’s School of Dentistry, specializing in Dental Prosthodontics.

Dr. Long was in private practice dentistry since 2013, and following many years as an associate dentist, she opened her own, start-up dental practice, Madison Dental Studio (MDS). After exponential growth of her Practice and achieving professional success as an entrepreneur, leader, and experienced dentist, Dr. Long decided to choose a new experienced leader for her practice. Dr. Long and her family relocated to the Huntsville-Madison area in 2025, when Dr. Andres opened his own practice, specializing in Prosthodontics.

In her free time, Dr. Diana enjoys spending time with her family, including their three children and their dog, Sam. She also enjoys traveling, cooking, & photography, and she is an avid gardener, in her free time.