Meet Our Doctors

Dr. Jennifer Kirwan

Dr. Kirwan is a native of Las Cruces, New Mexico and decided at the age of 8 that she wanted to become a dentist one day! She attended Benedictine College in Atchison, KS on a tennis scholarship and earned her Bachelors of Science degree in Biology in 1996. While attending she was awarded an Army ROTC scholarship and began her military career. Dr. Kirwan graduated with her Doctorate of Dental Surgery from Creighton University School of Dentistry in 2000. She completed an Advanced Education in General Dentistry Residency at Fort Benning, Georgia. Dr. Kirwan served 4 years of active duty and 4 years of reserve duty before exiting the U.S. Army. Her last duty station was Fort Leavenworth, KS, where she felt a desire to give back to the community which had supported her and so many other military families so well.

The Smile Centre was born in 2004, when Dr. Kirwan partnered with a local pediatric dentist and began an “adult care” general practice within it, reinventing it as a powerhouse combination.  The Smile Centre became a dental destination where any age of the family could now receive the highest standard of care.

Dr. Kirwan’s expertise and true passion is in transforming smiles. Her attention to detail and constant pursuit for excellence has earned her awards such as Kansas City’s 435 Magazine TOP DENTIST of the Year Award, voted by her dental peers, over and over. With many years of extensive training in cosmetic dentistry and “single visit crowns,” she has the tools to create and maintain your beautiful smile.

In her down time, Dr. Kirwan is a diehard Boston Red Sox fan and enjoys watching baseball, playing golf and tennis, and being a mom. Dr. Kirwan and her husband are the proud parents of four beautiful children and a crazy dog named Murphy.

Dr. Gary Poppe

Dr. Gary Poppe joined The Smile Centre in May of 2020 and has been such a positively wonderful addition to our family! His fun and joyfilled demeanour puts patients at ease immediately.  Dr. Poppe has a true passion to treat every patient with the highest of standards and offers the most compassionate care possible. He has professional experience as a general dentist for over 30 years in several areas of dentistry and believes that a comprehensive approach to treating a patient results in  the best care that can be offered to a patient. 

Dr. Poppe enjoys learning and keeps himself abreast of the latest technology in order to provide current quality treatment to patients.  He has worked with CEREC systems, dental implant systems both surgical and restorative, and the latest restorative techniques.  Dr. Poppe enjoys learning new dental procedures and derives great satisfaction seeing patients benefit from them.

Dr. Poppe and his wife, Melanie recently relocated to Leavenworth, KS to be closer to their daughter. When he is not delivering excellent dental care he enjoys spending time with his wife, playing blue grass music on his musical instruments and getting to know the Leavenworth community.


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