Our Staff

All our professionals at Matthew McCullough DMD, PC maintain the highest levels of accreditation and pursue ongoing education to stay abreast of the latest trends in family and general dentistry.

Matthew McCullough DMDMatthew McCullough DMD

Dr. McCullough grew up in Bridgeport, IL, a small town in southeastern Illinois. He graduated from Greenville College in 1996 with honors. He then attended SIU School of Dental Medicine in Alton, IL for 4 years. He graduated near the top of his class in 2000 with honors. While in dental school he was awarded the Arm and Hammer Dental Award and was chosen to Omnicron Kappa Upsilon National Dental Honor Society based on scholarship and character of dental students. After dental school, he took over the practice of Dr. Donald E. Hayes DDS, who had practiced for 34 years in Greenville. Dr. McCullough is an active member in the American Dental Association (ADA), Illinois State Dental Society, Madison Dental Society , and the International Association of Orthodontics. He has completed numerous hours of continuing education in Orthodontics, Cosmetics, and other areas of dentistry.

Dr. McCullough is very active in the community as well. He is a member of the Greenville Free Methodist Church, Greenville Chamber of Commerce,Greenville Business and Professional Association, and Vice President of the Bond County Board of Health. He has donated his time each year to the annual Greenville Regional Hospital Health Fair to perform oral exams. He has also conducted clinics that offer free school exams for area students. Dr. McCullough resides in Greenville with his wife Dawn, their sons Grant and Peyton, and daughter Natalie.


Office Manager


Whitney graduated from Greenville College with a bachelor's degree in Biology and has worked in healthcare since 2008. She has been the Office Manager for Greenville Family Dentistry since 2017. Whitney and her husband, Erik, moved to Nashville, TN in 2019 where they currently reside with their Yorkie, Sophie, and cat, Millie. Whitney splits her time between Nashville and Greenville, working remotely via Zoom when not physically in the office. She has a passion for coaching others to be successful and believes a happy, healthy office is the key to patient satisfaction. In her free time, Whitney enjoys going to the gym, listening to live music in Nashville, cheering on her football teams - LSU Tigers & New Orleans Saints, and cuddling with her furbabies.


Our Registered Dental Hygiene Team has years of experience and continuing education, bringing the most desirable expertise to our practice. Each of our hygienists take great pride in giving every patient individualized care during regular checkups and cleanings and are dedicated to the dental health needs and overall well being of each patient.


Lindsay has been a member of our dental hygiene staff since 2010. She began her dental career with our office on a temporary assignment. Lindsay's compassionate, bright, cheery personality and excellent care, skill and devotion to our patients instantly found her as a permanent member on our team. Lindsay graduated from Kaskaskia College with an Associate Degree in Dental Assisting and then continued her education by graduating from Lakeland College in 2009 with an Associate Degree in Dental Hygiene. Lindsay was voted best dental hygienist by her peers. Lindsay is married to her longtime sweetheart and together they have an adorable son, Breckin. She also enjoys traveling, reading, cooking, taking care of her dogs and is an avid Cardinal fan.



Jenni began her dental career as an assistant. After four years of experience she decided to go back to school for dental hygiene at Lake Land College from where she graduated in 2006. Jenni's bubbly personality helps put patients at ease and make their experience more enjoyable. She also loves helping patients take care of their smiles and improve their overall health. When not working, she enjoys spending time with her husband and twins, Evan and Ava, and going camping.



Kimmy graduated from Kaskaskia College in 2007 with an Associate Degree and Dental Assisting Degree. She then graduated from Southern Illinois University Carbondale in 2010 with a Bachelor of Science Degree in Dental Hygiene. She has been a registered dental hygienist since 2010. Kimmy enjoys getting to know her patients and creating a positive dental experience by providing a calming nature and a gentle hand. Educating each patient based on their needs is something that Kimmy prides herself in doing to help prevent any type of oral disease from cavities to gum disease. Outside the office Kimmy is married with two rambunctious boys, Connor and Liam. During her free time she enjoys spending time with her family and friends, motorcycle riding, reading, baking, and knitting.

Dental Assistants

Each of our Dental Assistants are certified with expanded function duties and value the importance of remaining current on all continuing education requirements. It is their goal to make your dental visit as comfortable and stress free as possible. The dental assistants work along-side the dentist and are usually with you from beginning to end of your appointment. Our assistants are professionals who pride themselves in staying on the cutting edge of dentistry and will make certain that you have a full understanding of each procedure that is being performed. Our Dental Assistants love their jobs and it shows. Their smiles are contagious!



Casey is a certified dental assistant who graduated from Kaskaskia College with honors and as Vice President of her class. Casey has been a member of our team since 2014 and we are very pleased that she joined us. Her hard work, never stop, can do attitude is such an asset and one that our patients truly enjoy. Casey will go above and beyond to ensure that your visit at our office will be a pleasant experience, as well as a successful one. Casey resides in Greenville with her husband, Blake, their son, Klay, their twin daughters, Quinn and Nora, and their dog, Laker. In her spare time she loves spending time with her husband, their kids, and family and friends.



Hannah graduated from the Kaskaskia College Dental Assisting program in 2015. She began her career shortly after and has been with Greenville Family Dentistry since 2018. Hannah enjoys helping others and having an impact on our patients' smiles. Outisde of the office she enjoys spending time with her husband, family, and friends. She and her husband moved to Greenville in 2021 and are expecting their first child in the fall of 2021.



Elyssa has been a Dental Assistant with Greenville Family Dentistry since 2021. She graduated from Highland High School and moved to Greenville with her boyfriend, Dylan. She spends most of her free time chasing after her Labradoodle, Mylee, but still finds time to hang out with friends and family. Elyssa also enjoys cheering on friends at local modified stock car races. Her favorite thing about being a Dental Assistant is getting to meet new patients every day. 


Front Office  Coordinators

Our Front Office Coordinators receive our patients (both on the phone and in person) with kindness and compassion. They will assist you in any way possible from appointment scheduling and insurance coverage, to reviewing preoperative and postoperative instructional care . They are ready to answer your questions and assist you in any way they can. They love what they do, and it shows on their faces. You will find them to be friendly and up-beat and truly caring and understanding of your dental needs.


Melissa is our Insurance Coordinator and diligently works with insurance companies to ensure our patients' benefits are being maximized. She graduated from Frontier College with an Associate Degree in Business. Melissa enjoys getting to know patients and wants each of them to have a pleasant experience while in our office. She has two daughters, Katelyn and Emily, who are both active in music and the arts. In her free time, Melissa enjoys playing the french horn for several ensembles around the area and spending time with her girls and their puppy, Koda.



Nikki is a Front Office Coordinator and has been a part of the team since 2021. She graduated from McKendree University in 2008 with a bachelor's degree in Psychology. Nikki has enjoyed helping others for many years and does so with a positive outlook and joyful, caring spirit. She resides in Greenville, IL with her tall, dark, and handsome husband and four children - 3 boys and 2 girl. When not running them around, she enjoys spending time with her family and friends grilling on the patio while listening to good music.



Leah was born and raised in Coffeen, IL where she still currently resides with her fiance, Thomas. She enjoys spending time with her family, especially her niece, Brooklyn, and nephew, Caleb. She  is an active member of Calvary Baptist Church in Hillsboro, IL, and in her downtime she loves cuddling with her dog, Chloes. Leah has been a part of the Greenville Family Dentistry team since 2021 as a Front Office Coordinator and loves interacting with and getting to know patients.



Ashley is a Front Office Coordinator at our office and has been a part of our team since 2015. Ashley graduated from Southern Illinois University Edwardsville in 2008 with a Bachelor Degree in Psychology. She has always been passionate about helping people. Making patients feel comfortable and at ease when they enter the office is something she prides herself in doing. Outside of the office Ashley enjoys spending time with her family and friends.



- it seems we are always smiling around here!

You will find our staff is friendly and up-beat, and we will do our very best to make your visit comfortable and, yes, even fun!! And all the while, we will be providing you with the highest quality dental care. We won't be surprised to hear you say .... "It's the best time you have ever had in a dental office" .

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