ST. Cloud 320-253-7700
Clearwater 320-558-2201

Our Team


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Dr. Gary Thompson
Dr. Gary Thompson graduated from Augsburg College and the University of Minnesota Dental School, he served three years in the U.S. Army Dental Corp at Ft. Bragg, North Carolina. He came to Northway Dental Associates in 1982. Dr. Thompson is a member of the West Central District Dental Society, the St. Cloud Dental Society, the Minnesota Dental Association, American Dental Association and the American Academy of Dental Group Practice. For sixteen years he taught dental assisting at the St. Cloud Technical College.

He and his wife Chris are members of the Salem Lutheran Church. They have three sons: Ben, Eric, and Zach. Going to the lake, going to stock car races and listening to music occupy much of his free time.


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Dr. Bruce Kudak
Dr. Kudak has practiced dentistry at Northway Dental Associates since 1983. Dr. Kudak received his DDS Degree from the University of Minnesota school of Dentistry in 1981. He also received a Bachelor of Science degree in Microbiology from the University of Minnesota in 1977. He is a member of the St. Cloud Dental Society, West Central District Dental Society, Minnesota Dental Association, American Dental Association, The American Academy of Dental Group Practice, and is a fellow in the International College of Dentsits. He has also served on the board of numerous charitable organizations.

His passions outside of Northway Dental Associates includes his family, wife Stephanie, sons Brent (Anna) and Kyle, and his daughter Kelsey. As well as his four wonderful grandchildren! Dr. Kudak has participated on Medical/Dental missions to Guatemala with Helps International for more than 25 years. Golf, travel, hiking, and volunteerism fill the rest of his time.


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Dr. Greg Lehman
Dr. Greg Lehman graduated from the Concordia College and the University of Minnesota Dental School, he served three years in the U.S. Army Dental Corp. and the U.S. Army Reserves following dental school. He joined Northway Dental Associates in St. Cloud in 1986. Dr. Lehman is a member of the Great River Study Club, which focuses on Advanced Continuing Dental Education. He is also a member of the West Central District Dental Society, the St. Cloud Dental Society, the Minnesota Dental Association, American Dental Association and the American Academy of Dental Group Practice. Dr. Lehman serves as an attending dentist at the St. Cloud Technical College in the Hygiene Training Program. His is an active member and has served in numerous positions at the Atonement Lutheran Church.

His family includes wife Kris, daughters Jackie and Beth, and son Dan. Personal interests include canoeing, sailing, camping, fishing, photography, and woodworking.


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Dr. Jeffrey Flemming
Dr. Jeff Flemming graduated from Chaska High School in 1980, the College of St. Olaf in 1984 and from the University of Minnesota Dental School in 1989. He worked as an associate dentist at Chosen Valley Dental in Chatfield, MN from 1990-1992. He came to Northway Dental Associates in 1992. He is a member of the St. Cloud Dental Society, Minnesota Dental Association, American Dental Association, West Central Dental District Society, and the American Academy of Dental Group Practice.

Dr. Flemming has been a resident of Sartell since 1993. He is married with two children, and enjoys reading, golf, fishing, hockey and traveling.


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Dr. Sarah Layne
Dr. Sarah Layne is a member of the St. Cloud Dental Society, West Central District Dental Society, Minnesota Dental Association, American Dental Association and the American Academy of Dental Group Practice. She is a native of St. Cloud, Attended Cathedral High School and the University of Minnesota Duluth for her undergraduate studies. Dr. Layne graduated from the University of Minnesota Dental School in 2004 and has been practing at Northway Dental Associates since she finished dental school.

When not at work Dr. Layne enjoys spending time with her husband Phil, children Mason and Jayden and dog Zoe. She enjoys running and the outdoors.


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Dr. Brent Deragisch
Dr. Brent Deragisch graduated from St. Cloud State University and the University of Minnesota Dental School. He is a member of the St. Cloud Dental Society, West Central District Dental Society, Minnesota Dental Association, American Dental Association and the American Academy of Dental Group Practice. Upon graduation form dental school, he worked in the Twin Cities at two private practices and joined Northway Dental Associates in 2005.

His family includes his wife Tina, daughter Kendra and son Preston. He enjoys spending time with his family, yard work, taking the dog for a walk, and the Minnesota Golden Gopher football games.


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Dr. Amanda Sperl
Dr. Sperl is a native of St. Cloud. She attended Cathedral High School and graduated from the College of St. Benedict, earning a degree in Biology. Dr. Sperl received her Doctor of Dental Surgery degree from the University of Minnesota School of Dentistry, where she graduated as a member of Omicron Kappa Upsilon Dental Honor Society and received the J. Raymond Gill Award for Outstanding Achievement in Clinical Prosthodontics.

Dr. Sperl is dedicated to providing her patients with personalized, gentle and comprehensive dental care. She believes in the importance of continuing education and is a member of the American Dental Association, Minnesota Dental Association, West Central District Dental Society and Academy of General Dentistry.

When not in the office, Dr. Sperl enjoys traveling, arts and crafts, and spending time with family and friends.


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Denise Knutson - Business Administrator
Denise Knutson is the business administrator at Northway Dental Associates. She started with Northway in May 2013. She is a member of the American Association of Dental Office Managers.

Denise is married and has two children. As a family they enjoy attending sporting events and being outdoors.






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