Dental Staff

Paul D. Reznicek, D.D.S.

Dr. Rez is a native of central Missouri. He graduated cum laude from Southwest Missouri State University in 1983 with a B.S. in chemistry. He earned his D.D.S. from the University of Missouri-Kansas City Dental School in 1988 and has been practicing dentistry in Waynesville ever since. Dr. Rez and his wife, Suzi, have raised four children. He is on the board at his church, The River. He is an avid rock collector. Dr. Rez also enjoys taking care of his garden, fruit trees, flower beds, chickens, cows, and anything else you can find outdoors. If he must be indoors, he can be found cheering on the St. Louis Cardinals, Kansas City Chiefs, and Mizzou Tigers.


Stephanie Poppen

Registered Dental Hygienist

Stephanie has lived in Missouri most of her life. She earned her degree as a Registered Dental Hygienist in 1992 and has been with Reznicek Dental Group since 1999. Stephanie truly loves her job and enjoys helping her patients maintain their oral health. Outside the office, she enjoys traveling, visiting family, gardening and numerous crafting hobbies.


Jullie Bayless

Registered Dental Hygienist

Julie lives in Cuba, Missouri. She married Greg Bayless in 1985, and together they have two boys who are very active in sports, band, and academic tournaments. Julie spends much of her free time at her sons' various ball games and other activities. Julie graduated with honors from Maryville University with a B.S. in biology. She earned her dental hygiene degree from St. Louis Community College in 1987 and has been with Reznicek Dental Group since 1993. She says her patients are her second family. She has seen several generations and enjoys visiting and seeing pictures of her patients' families besides taking care of their dental health. She feels as if she has the best of both worlds-- the best patients and the best co-workers. She loves what she does, is thankful she chose this profession and feels blessed to work at Reznicek Dental Group.


Sharon Best

Administrative Assistant/Dental Assistant

Sharon is originally from Portland, Maine and is the oldest of seven children. She has a Yorkie-poodle mix named Mr. Chew and a hedgehog named Toulouse. In her free time, Sharon enjoys word searches, hiking, spending time with family and friends and memorizing useless trivia. She loves her job, her co-workers, and the patients she gets to work with every day.


Jeris Hayes

Administrative Assistant

Jeris, joined the Reznicek Dental Group team in May of 2019. She holds a B.S. in Business Administration form Columbia College. Jeris was born and raised right here in Waynesville. She and her husband, Matt, have one son. Jeris enjoys reading, jigsaw puzzles, and spending time with her family.


Suzi Reznicek

Finance and Marketing Manager

Suzi is originally from Columbia, Missouri. Although she and Dr. Rez have been married since 1988, but she only began working in the office in 2015. Suzi has a bachelor’s degree in elementary education. She taught at Fort Leonard Wood for a few years before resigning to stay home when the first of her four children came along. She was a frequent volunteer at school and church when her kids were young. Suzi loves singing, baking, canning the produce from her husband’s garden, and numerous crafts.


Miranda Arganda

Certified Dental Assistant

Miranda is from a military family. She graduated from Waynesville High School in 2009 and has been with Reznicek Dental Group since 2011. Miranda has a much-loved dog she named Tali after one of her favorite fictional characters. She is a huge gamer and loves to play FPS’s, RPG’s, and MOBA’s.


Jennifer Ambrosia

Certified Dental Assistant

Jennifer is a 2009 graduate of Dixon High School and has been with Reznicek Dental Group since 2012. She is married to her high school sweetheart, Robert, and the two have a daughter and a son. Jennifer loves her two dogs, being outdoors, hunting, fishing, and spending time with her family.


Jenni Sherman

Dental Assistant

Jenni was born and raised in El Paso, Texas and moved to Missouri in 2012. She began working on an Associate’s Degree in general studies at a community college in Texas. She finished it here at Columbia College. In high school, Jenni was an all-state cross country runner. She still enjoys running and is among the top women in the area. Jenni enjoys spending time with her husband and son and her dog. She joined Reznicek Dental Group in June of 2016.

Jackie Feagin

Dental Assistant

Jackie joined the Reznicek Dental Group team in March of 2019. She claims Lincolnton, North Carolina as her hometown, but as a pastor's daughter and later a military wife, she has really lived all over. She and her husband, Thomas, have been married since 2005 and have three beautiful children together: Ava, Connor, and Evangeline. In her free time, Jackie enjoys painting, crocheting, reading, and singing.