Meet Our Team


Brian Penniall DDS


Dr. Penniall graduated from Indiana University with a Bachelor of Science in Biology.  He earned his DDS from University of Illinois at Chicago College of Dentistry in 2003.  Dr. Penniall opened Penniall Family Dental in Saint Charles in 2005.  He grew up in the area and wanted to return to serve the community. He believes in educating his patients and thoroughly explaining his treatment plan.  Dr. Penniall sees each patient as is a unique individual and with unique desires and needs. It is his pleasure to get to know each patient personally.

Dr. Penniall is a member of the Chicago Dental Society, American Dental Association and the  Illinois State Dental Society. He serves as an Executive Board Member for the Fox River Valley Dental Society. Dr. Penniall believes it is his honor and duty to give back to his community. He provides dental care for those who may not otherwise have access by participating in Dentists with a Heart. He lives in St. Charles with his wife and four kids, Jack, Sam, Ella and Grace. When he isn’t in the office, you might catch him on stage playing his bass or attending a concert or sporting event. Dr. Penniall is an avid sports and music fan.

Megan Robin DMD

Dr. R

Dr. Robin was born and raised in the northwest suburbs of Chicago. After earning her undergraduate degree in molecular and cellular biology with high honors from the University of Illinois at Urbana-Champaign, she went on to graduate as a Doctor of Dental Medicine from the University of Illinois at Chicago College of Dentistry. Dr. Robin continuously expands her knowledge and skills by taking numerous continuing education courses to stay current with the latest advancements in dentistry and to ensure her patients receive the best possible care. 

Dr. Robin is devoted to creating confident smiles for all of her patients and believes this is best accomplished through building trust and genuine relationships with each and every one of her patients. She understands that visiting the dentist can be stressful, which is why she makes it her mission to create a comfortable and welcoming environment for her patients. Dr. Robin takes the time to listen to her patients' concerns and works with them to develop a personalized treatment plan that fits their needs. 

When she is not working on teeth, Dr. Robin enjoys a good game of Rummikub, cheering on the Chicago Blackhawks, traveling to new places around the world, and spending time with friends and family.

Sara - Hygienist


Sara grew up in the St. Charles area graduating from St. Charles North High School. She then went on to Harper College where she completed the dental hygiene program, graduating Sigma Pi Alpha. Sara has been a hygienist at Penniall Family Dental since 2014. In her free time, she loves outdoor activities like boating, hiking, and snowboarding but also enjoys reading and spending time with family and friends. Sara and her husband live locally with their beloved cat, Harley. She loves working with her patients and helping educate them on how to achieve a healthy beautiful smile.  

Donna – Hygienist


Donna grew up in Mokena, IL and moved to the St. Charles area in 1995 after getting married to her husband Keith. She began her career in the dental field in orthodontics and worked as an assistant in a general practice until her hygiene graduation. In 2000, Donna started practicing dental hygiene after graduating with honors from Harper College. She joined the team at Penniall Family Dental in 2017. When away from the office, Donna enjoys spending time with her husband Keith and sons Everett and Gray. Her boys keep her busy with lacrosse and golf. The family loves to travel and Donna has discovered a passion for sky diving. Donna focuses on dental hygiene as an integral part of total health and a strong immune system.  

Rachel – Hygienist and Front Office


Rachel started in the dental field at age 18 working as receptionist and assistant, but her love for dentistry started when she was about 14. She knew she wanted to serve and aid the public but wasn’t sure how to go about that. Rachel studied dental hygiene at Harper College, graduating in 2015.  Rachel feels so passionately about dentistry, she volunteers in a free dental clinic in her spare time. Rachel joined the Penniall Family Dental team in 2016. Outside of the office Rachel has two fur babies (dogs) that keep her busy and enjoys to cooking for her fiancé Duane. 

Christine  - Front Office


Christine graduated from Harper College as a medical office assistant and has many years of experience working in pediatrics and ob/gyn.  Her passion for health and wellness took her to the chiropractic field working as a licensed technician for the past 6 years.  She’s excited to be a part of the Penniall Family Dental team after being a patient here for years!  In her free time she enjoys spending time with her husband Randy, 2 children and 2 dogs.  When Christine is away from the office she can be found traveling to the beach and gardening.

Hours of Operation

Our Regular Schedule

Primary Location


8:00 am-5:00 pm


8:00 am-5:00 pm


9:00 am-6:00 pm


10:00 am-7:00 pm