Meet Dr. LeMonnier

Our Passion is Smiles. Our Obsession is Service.

Mark C. LeMonnier DDS

Dr. LeMonnier’s professional experience began with his commission as a dental officer for the United States Public Health Service. He spent five years serving the Native American population in hospital-based and community-based dental offices in New Mexico and Washington. As an Officer of the USPHS, he earned commendations for Outstanding Service and Leadership, as well as promotion to Lieutenant Commander. Following his selection for the Inactive Reserve Corps, he chose to continue his career in private practice. Since 1996, Dr. LeMonnier has been practicing in Maryland, the majority of those years serving the Frederick Community.

Throughout his career, Community Service has remained a consistent theme. From his participation in Operation Outreach while in dental school to having been named Woodmont Academy’s 2004 Volunteer of the Year, Dr. LeMonnier believes one’s talents exist solely for the purpose of being shared.

Dr. LeMonnier is currently participating in several professional associations as a member of the American Dental Association, the Maryland State Dental Association, the Frederick County Dental Society, and the Francis Scott Key Study Club.

When not in the office, you can usually find Dr. LeMonnier just trying to keep up with his wife, two grown children, and his two grandchildren. From time to time, he can also be seen on a golf course or hiding behind a good book. His family’s support, broad background, continued up-to-date dental training, and outstanding dental team are the sources of his passion for dentistry, ensuring that his patients receive the most comprehensive and advanced dental care he can provide.

Step Into a Healthier Smile

Taking the first step toward a healthier smile is simple—just follow these easy steps to begin your dental journey with us.

Contact Us

Have questions or ready to get started? Reach out to our friendly team—we’re here to help.

Schedule Your Visit

We’ll find a time that works for you and make sure your first appointment is stress-free.

Come See Us

Visit our office and experience comfortable, personalized care from the moment you walk in.

Get to Know the Doctor Who Puts Your Smile First

Dr. LeMonnier and our team are here to provide more than just expert dental treatment—we’re here to build relationships based on trust, comfort, and compassion. Whether you’re a new patient or returning for continued care, we invite you to schedule your visit and experience the thoughtful, patient-centered approach that sets us apart.