About Our Doctors


Dr. Kathryn M. Rinehart, DDS


Dr. Kathryn:

  • Educated at the University of Arkansas (BS) and the University of Tennessee College of Dentistry (DDS)
  • Chi Omega Alumna
  • Professional memberships include the American Dental Association, the Arkansas State Dental Association, and the American Academy of Pediatric Dentistry
  • Has moderate sedation license
  • Enjoys running, playing tennis, and cheering on the Hogs!
  • Her husband is also a dentist and practices in Northwest Arkansas.

Dr. Kathryn is originally from Monticello, Arkansas, where she graduated as the valedictorian of her class. After earning a Bachelor of Science in Biology from the University of Arkansas, she followed in her father's footsteps and became a general dentist. She graduated from the University of Tennessee College of Dentistry and comes to us after practicing in a pediatric clinic in Little Rock, Arkansas. Her goal is to provide a dental experience that will help your child have a healthy smile and a life of good dental health!


Dr. Michael Crowder, DDS

DrCrowder-resizedDr. Crowder:

  • Educated at the University of Arkansas (BS in Zoology) and Louisiana State University (DDS)
    Springdale Native
  • Devoted husband, father of four girls, and three dogs
  • Holds a license in moderate sedation from the University of Arkansas
  • Enjoys cooking, building things, and smoking meat
  • With his family, enjoys movies, table games, hiking, camping, fishing and kayaking

Bentonville dentist, Dr. Michael Crowder provides dentistry for children in Northwest Arkansas. He has been in practice for over 30 years and his favorite thing about his job is making his young patients smile!

From cavity, gum disease prevention and nutrition education, to extractions, space maintainers and sedation dentistry, Dr.Crowder considers it a privilege to work with parents and children and focus on their pediatric dental needs.

“My first job in high school was as a dental assistant/lab tech. Because of this, I have had a passion for dentistry and what we as dentists can do to transform people’s lives through restoring their mouths to health and the impact this has on their overall health. Dentistry is my passion and I do not consider it work.”

Dr. Lowell D. Williams, DDS, MS

Williams-resizedDr. Williams:

  • Doctor of Dental Surgery from University of Tennessee College of Dentistry
  • Graduated first in his class
  • Has practiced over 40 years
  • Skeet Shooter
  • Cowboys and Razorback fanatic
  • Family man with a wife of 35 years, 6 daughters, and 11 grandchildren

Dr. Williams practiced quality dentistry in his own private practice for 40 years.  He joined the Leap Kids team with Rock Dental several years ago.  Dr. Williams has gone through considerable training in office sedation and hospital general anesthesia.  He has also gone through special training in working with physically or mentally challenged patients, so that all children have access to quality care.  His main goal with every patient is helping to create healthy teeth and happy smiles.

"Having practiced pediatric dentistry for more than 40 years, I've had the pleasure of providing care for the children and for the grandchildren of my first patients, and the bonds I've developed over the years are the most rewarding part of my job".