Meet the Staff

Grand Dental Center is proud to boast a staff of eight hard-working and dedicated professionals. With over 150 combined years of dental experience, patients can be assured of competent, quality care. Our staff truly lives the “teamwork” philosophy and strives to provide an atmosphere of warmth and comfort. Many patients have commented on what a friendly office Grand Dental Center is, and it is our goal that everyone who walks in our door will feel that way.

Dr. Lisa Johnson: Dr. Johnson received her undergraduate degree from Concordia College in Moorhead, MN, and in 1998 she received her Doctor of Dental Surgery Degree from the University of Minnesota. Her dental experience includes two years as an associate with her father at Sheridan Dental Clinic in Plentywood, MT and one year in Waseca, MN prior to starting in Grand Rapids with Dr. Michael Nielsen in 2001. She and Dr. Nielsen practiced together for six years before his retirement in 2007.

Continuing Education is important to Dr. Johnson, and she takes part in numerous courses annually to keep her dental knowledge and skills sharp, and to keep abreast of current technologies and materials. Dr. Johnson is an active member of the Minnesota Dental Association, the American Dental Association, and the Academy of General Dentistry. She also participates in local charity events such as Give Kids A Smile Day and the Teddy Bear Clinic at the Children First Annual Children’s Fair.

Dr. Johnson is married with two young sons, and she enjoys spending time outdoors with her family, singing with her church choirs, dabbling in photography, and spending time with friends. She is also a Twins fan!

Dr. Tom Lidahl

Dr. Tom Lidahl: Grand Dental Center welcomed Dr. Tom Lidahl in September 2012.  Dr. Lidahl will be working on a part-time basis, and Dr. Johnson is particularly excited to work with him again, as it gives her another opportunity to work with her father!  Here's a little bit about Dr. Tom:   

Dr. Tom Lidahl was born and raised in Plentywood, Montana. He earned a B.A. degree from Concordia College in Moorhead, Minnesota, and received his Doctorate of Dental Medicine degree from the University of Oregon Dental School in Portland, Oregon. After dental school, Dr. Lidahl, his wife Mary, and their 2 daughters spent two years at Fort Bragg, North Carolina, where he served in the U.S. Army Dental Corps, the second of those years as Chief of Operative Dentistry at Womack Army Hospital. Following his tour of duty, Dr. Lidahl moved back to Plentywood  and began his private practice by establishing Sheridan Dental Clinic.

Professionally, Dr. Lidahl is a past President of the Montana Dental Association. He is a member of the American Dental Association, the Montana Dental Association, and associate member of the  Minnesota Dental Association. In 2010 he was granted Fellowship in the Academy of General Dentistry. Dr. Tom is also a Fellow of the International College of Dentists and the American College of Dentists and  has served as state chair of both those organizations.

When he isn't practicing dentistry, Dr. Tom is an avid photographer and enjoys bow hunting, traveling, and spending time with his five grandchildren.

Bev - 26 years as Office Manager
Office Manager: Bev, our office manager, has been in her current position here for 26 years, but prior to that she worked for six years as a dental assistant. Bev knows dentistry! As office manager, she handles all the insurance filing and current accounts, as well as the majority of scheduling and general business matters for the office. Bev has also been known to fill in as an extra assistant when needed. Almost any question related to insurance, billing, or general dental treatment can be answered by Bev.


Hygienists handle all the oral hygiene and periodontal treatment for the office. They perform cleaning and scaling of the teeth and soft tissues, place sealants, take diagnostic x-rays and complete preliminary checks of the mouth. They counsel patients in establishing and maintaining optimal oral hygiene, and they triage emergency patients when needed. Grand Dental Center has four experienced and very qualified hygienists who provide excellent patient care!

Jeanne - 32 years of hygiene experience

Kathy - 34 years of hygiene experience

Deb - 31 years of hygiene experience

Nikki -12 years of hygiene experience

Assistants: Assistants serve as the dentist’s “right-hand-man” (or woman, to be more exact). They assist the dentist chairside with all dental procedures and are also responsible for taking diagnostic x-rays and impressions of patients’ teeth which are used for various procedures. They are qualified to clean children's teeth, provide fluoride treatments and place dental sealants. They fabricate our patients’ bleaching trays and athletic mouthguards and also confirm and schedule appointments and assist with front-office responsibilities when needed. They are busy, hard-working ladies!

Renee - 21 years of assisting experience

Kerry -16 years of assisting experience
Lisa M. Johnson, DDS