About Our Friendly Staff

Cosmetic & Implant Dentists Accepting New Patients in Lone Tree, Centennial, Highlands Ranch & Nearby Colorado

The dentists and staff at our office in Lone Tree, Colorado, are dedicated to providing you with the best care that dentistry has to offer. Our team is fully licensed and experienced, and we foster a comfortable and welcoming setting where your needs are always met with professionalism and kindness. You can expect to receive outstanding service from our caring dental team in every aspect of your visit.

Staff Photo

Doctors

Joseph O’Leary, DDS, grew up in Rockford, Illinois. He attended college at the University of Notre Dame, graduating in 1985 with a Bachelor of Science. After completing his dental degree at the University of Illinois in 1989, he came to Colorado and furthered his education at a dental residency…

Read Full Bio

Dr. Scott Peppler was born in Northern California but spent most of his early life in Salt Lake City, Utah. He and his wife eventually moved to Boston, Massachusetts, where he attended the world-renowned Tufts University’s School of Dental Medicine. Dr. Peppler graduated in 2004 with his dental…

Read Full Bio

Dr. Scott I. Whitney grew up in Colorado. He attended the University of Colorado School of Dentistry and received a Doctorate of Dental Surgery (DDS) in May of 2000. He was then accepted into a General Practice Residency (GPR) at the University of Colorado Hospital, where he trained in advanced…

Read Full Bio

Shayna Sengewalt, DDS, grew up in a small town in West Virginia. She completed her undergraduate studies at the University of Virginia. From there, she attended the West Virginia School of Dentistry, where she received her Doctor of Dental Surgery degree in 2015.

Dr. Sengewalt went on to…

Read Full Bio

Staff

Office Manager

2 years at MDG (after being a patient for 15 years)

8 years working in healthcare

In my spare time I like to travel, play tennis and golf with my family, and take long walks with my 2 dogs.

Treatment Coordinator

8 years at MDG

32 years working in dentistry

In my spare time I like to play with my 66 lb puppy “Benny”. Now that I’m an empty nester I enjoy visiting my kids in California, Kansas, North Carolina and Fort Collins, and I never miss watching the Broncos, win or lose!

Treatment Coordinator

16 years at MDG

30 years working in dentistry

In my spare time I like to travel and go hiking and camping.

Hygiene/Insurance Coordinator

5 years at MDG

7 years working in dentistry

In my spare time I like to read, take my dogs on hikes, and cook with my husband.

Dental Assistant

19 years at MDG

30 years working in dentistry

In my spare time I like to watch movies and spend time outdoors with my family.

Dental Assistant

15 years at MDG

34 years working in dentistry

In my spare time I like to go biking and swimming, and work on my photography.

Dental Assistant

7 years at MDG

22 years working in dentistry

In my spare time I like to watch my sons sporting events, camp, shop and spend time with my family. I am an avid Broncos fan!

Dental Assistant

10 years at Meadows Dental Group

21 years working in dentistry

In my spare time I like to spend time with my husband, 2 boys and 1 daughter. We love all things Colorado – camping, skiing & traveling.

Hygienist

19 years at MDG

22 years working in dentistry

In my spare time I like to go on vacations with my family and go on Jeeping adventures around Colorado.

Hygienist

12 years at MDG

40 years working in dentistry

In my spare time I like to garden and knit, watch the Rockies and Broncos, and spend time with my family.

Hygienist

17 years at MDG

19 years working in dentistry

In my spare time I like to spend time with family and friends, and I enjoy running, biking and skiing.