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Dana Williams

Office Manager


Dana is Dr. Renger’s Office Manager.  She joined the team in March 2015.  Dana is a long term resident of the Joplin area. In 1998, she graduated from Missouri Southern State University in Joplin, Missouri.  Later she received a Master's in Business Administration from Missouri State University in Springfield, Missouri.

Much of Dana's career has been in Marketing and Management in a variety of medical fields.  Her mantra in any position is, "Extraordinary customer service is the goal to happy patients.", I want every person who walks in the door to feel like they are at home and going to be treated like family."

Dana spends most of her time running, cycling, swimming and competing in local races.  She also enjoys traveling, camping and hiking whenever she gets a break from the "real world"!  She keeps a bucket list of worldwide locations to visit and tries to tackle one each year.  Her favorite activity is time with family; her husband (Patrick) and teenage daughter (Avery)!


Amanda Allen

Financial Coordinator


Amanda is the Financial Coordinator for Dr. Renger’s office. She has been with Dr. Renger since December 2003. She graduated from Webb City High School in 2002 and Vatterott College in 2003.

Amanda has a thorough knowledge of treatment planning. She spends a great deal of time with patients to ensure they understand future procedures and assists them with making financial arrangements, if needed. She helps patients to file insurance and other tasks that are in the best interest of the patient and the practice. She is always available to answer inquires from patients and
insurance companies.

Amanda resides in Webb City and enjoys spending time with her family.


Christina Kitchens

Scheduling Coordinator


Christina is the Scheduling Coordinator for Dr. Renger’s office. She joined Dr. Renger and his team in March 2012. Christina graduated from Penn Foster High School in Arizona. She has worked in the dental field for four years serving in various roles.

As the Scheduling Coordinator, Christina assists patients by ensuring they get a timely appointment. She notes that when a patient is in pain they want to be seen quickly and to that end she has to be creative with the schedule. Christina checks out patients at the end of their treatment and her kind and caring attitude will be remembered by them as they leave the office.

Christina resides in Carthage with her fiancée (Landon), son (Mason), and daugher (Adelyn). As fans of the outdoors, they spend a lot of time outside especially watching Mason play sports. They attend Forest Park Baptist Church in Carthage, Missouri.


Gwen Braddish

Dental Assistant


Gwen is a Dental Assistant in Dr. Renger’s office. She has been an assistant for Dr. Renger since September 2005. She has worked in the dental field as an assistant since 1981. She has attended several classes while working to obtain her Expanded Functions certificate. Gwen and her husband Tom, have five children and one grandson. Gwen enjoys reading, spending time with her family and running.

Michele Garner

Dental Assistant


Michele is a Dental Assistant in Dr. Renger’s office.   She started working with Dr. Renger in March 2014.  She went to college at Stephen F. Austin State University in Texas and the University of Arkansas majoring in nursing.  She later decided to enter the dental field and has been an assistant since 1992.

Michele moved to Missouri in 2007, and before that she led a busy life having lived in 14 states.  She has been married 21 years and has two children and one step-daughter.

Michele enjoys horseback riding and watching her daughter in competitive cheer events.  She also enjoys watching her husband and son participate in dirt car racing.


Susan Richardson

Dental Assistant


Susan is a Dental Assistant in Dr. Renger's office working closely with Dr. Dodds.  She joined the team in January 2015.  Susan is a Pittsburg, KS native.  She graduated from Pittsburg State University with a Bachelor's Degree in Psychology.  She has worked in the dental field since 2001.   Susan enjoys spending time with her family and friends.

Brittanii Lehman

Registered Dental Hygienist


Brittanii Lehman is a Registered Dental Hygienist for Dr. Renger’s office. She has been a hygienist for Dr. Renger since November 2012.  She graduated dental hygiene school in 2008, from Missouri Southern State University. She has completed Advanced Laser Training and received certification from the Institute for Advanced Laser Dentistry in New York City, NY.   

She lives in Carl Junction with her husband and their three children. 

She enjoys spending time with her friends and family and sewing, in her free time.

Rianne Jameson

Dental Hygienist


Rianne Jameson is a Registered Dental Hygienist for Dr. Renger’s office.  She has been an hygienist since 2007 and joined the team this June.

Rianne and her husband Tim have two teenage boys.

In her free time Rianne enjoys bow hunting and fishing with her family.  She also loves watching her boys participate in multiple sporting events.