Tower Dental Clinic

Hours: Monday – Friday 8-5
415 N. 2nd Street, Suite 2, Tower, MN 55790

Phone: (218) 753-6061 Fax: (218) 361-3288



Release of Information – Tower Dental


James Marzella, DDS

Dr. James Marzella lives with his wife Ashlea and three young children in Ely, Minnesota after recently relocating from Edina, Minnesota. He is also the father of three grown children, a son and daughter living in the metro area and one daughter living in Middleton, Wisconsin.

In addition to spending time with family, Dr Marzella enjoys, hiking, biking, boating and working and living in beautiful northern Minnesota.

He is dedicated to providing gentle dental services at the Tower location for your entire family, from the young, to the young at heart.

Dr. Marzella practices at the Tower Dental clinic.

Peg Simonson, LDH

Peg Simonson, Licensed Dental Hygienist, graduated from the University of Minnesota Program in Dental Hygiene with a special focus on care of the older adult patient and those with special needs.

She grew up on Lake Michigan but came to love the accessibility and beauty of the Boundary Waters area, moving here in 2019 to explore the wilderness in every season. Her two adult children live in the Twin Cities area. Peg enjoys serving patients of all ages and strives to build trust with every visit.

Peg practices at the Cook Dental and Tower Dental clinics.

Tim Sprouls, DDS

Dr. Tim Sprouls grew up in western Nebraska. He obtained a BS in Biology from the University of Nebraska-Lincoln, graduated from the University of Nebraska College of Dentistry in 1986 and completed a general practice residency at the VA Hospital in Minneapolis in 1987.  Dr. Sprouls first came to Cook in 1989 and has spent the bulk of his career working in community health centers in St. Paul and Cook, Minnesota.

Dr. Sprouls practices at the Cook Dental and Tower Dental clinics.