124 East Lincoln Ave. Fergus Falls, MN 56537

Our Staff

Grant Colling, DDS

Dr. Colling received his Doctor of Dental Surgery degree from Creighton University, Boyne School of Dentistry in 1981, graduating with honors.

After graduation, Dr. Colling began his private practice in Fergus Falls.

Dr. Colling has studied extensively at the Dawson Center for the Advancement of Dentistry and the Pankey Institute for Advanced Dental Education in the areas of restorative and implant dentistry and TMJ diagnosis and treatment.

In pursuing his passion to deliver the best treatment in a comfortable  relaxing setting,  Dr. Colling participates in two Pankey Affiliated Learning Group study clubs. He also has been a member of the Heartland Study Club, having been a restorative advisor board member for many years. The Heartland Study Club has honored him with the awards for Clinical Excellence 1996 , Outstanding Clinician of the Year 1997, Clinical Excellence 1999, and Outstanding Clinical Presentation 2002.

Dr. Colling is married to Mary Ann and has three sons. He enjoys cooking real food, photography(of many genres), mowing his lawn in straight lines and maintaining optimal health through weight lifting and power yoga.

Mary Ann Colling

Meet Mary Ann, she is the voice of Riverfront Dental. From greeting you on the phone or in person, she will make your visit at Riverfront Dental feel like home. With degrees in Education and Psychology Mary Ann is able to facilitate the relationship between patient and provider.

Since her career change in 1988, Mary Ann has seen many changes in Dentistry. She has kept Riverfront Dental on the cutting edge of technology, implementing many systems and has been a vehicle in supporting the relationship between dentistry and whole body health. Keeping in touch with individualized care is always a goal. Aside from her profession, her passion is her family. Husband Grant and sons Ian and Aidan keep her smiling.

Mary Ann enjoys attending Zumba and Step classes with girlfriends, walking her dog Eva and spending every season on Marion Lake.

Jacki Hahn-Rubish

Jacki joined our team in 1989 and we are very fortunate to have her.  She is a graduate of NDSCS in Wahpeton, ND. Jacki has seen a number of our patients grow up through the years.  One of her former patients is now a dental hygienist herself.  Helping patients help themselves is one of Jacki’s greatest joys.

She is committed to helping patients improve their oral health:making it possible to improve their personal health.  Jacki and her husband Dale have been married for more than 20 years and have three beautiful daughters.

Robyn Spilde

Robyn joined our team originally in 2002.  In 2004 she and her family moved to Missouri.  After 7 years of living and working as a Dental Assistant in Missouri, she and her family moved back to Fergus Falls and she was excited to rejoin the Riverfront Dental family once again.  Robyn enjoys working with people and helping to make beautiful smiles.  Robyn and her husband Mike have three growing boys, Lukas, Gregory and Christopher.  They live in Battle Lake, MN.  When Robyn isn’t running around with her boys she enjoys decorating cakes.

Brooke Anderson

Brooke is one of the newest members of the Riverfront Dental team. Brooke is a student
at Fergus Falls High School. She brings life to the office with her outgoing personality and warm heart.

From greeting you on the phone to welcoming you through the door, Brooke looks forward to meeting you.

Brooke enjoys spending time with her family and friends at the lake. She also enjoys traveling, music and meeting new people.