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Our Doctors



Randal A. Knudson, D.D.S.

Born in the state of Iowa graduating from Cornell College with a Bachelor of Arts degree in 1977. Graduated from the University of Iowa College of Dentistry in 1981. Accepted and completed the rigorous General Practice Residency at the University of Chicago Hospital and Clinics in 1981-1982.

Returned to Iowa, lived in Colorado but then moved back to Illinois and acquired a small dental practice in Highland Park, IL in 1986 and expanded to Lake Bluff in 1999.

Participates with Glenkirk and charity dentistry, is active in many organizations and foundations including the American Academy of Cosmetic Dentistry, Chamber of Commerce for Lake Bluff and Highland Park, American Dental Association, Illinois State Dental Society, Chicago Dental Society, Donated Dental Services (DDS), ADA Foundation and the Spear Faculty Club.

Enjoys family of four children ranging in age from college to graduate college and actual employment!!  Two dogs and three cats recently adopted from PAWS Animal Shelter in Chicago keep Nancy and I very busy. I thoroughly enjoy travel and all outdoor activities from biking and skiing to hiking, horseback riding and just long walks!




Margaret A. Lindholm, D.D.S.


Dr. Maggie grew up in Deerfield, Illinois.  She graduated with honors from Miami University of Ohio in 2007 with a Bachelor of Arts degree in Zoology.  She continued with her education and graduated cum laude as a Doctor of Dental Surgery from Marquette University School of Dentistry in 2011.  Dr. Maggie is excited to be home on the north shore of Chicago working with her father and the team at Highland Park/Lake Bluff Dental Care.

Dr. Maggie is a member of the American Dental Association, Illinois State Dental Society, and the American Academy of Cosmetic Dentistry. She has volunteered at Head Start and Give Kids a Smile screening days providing exams, cleaning and flouride varnish.  Dr. Maggie has also volunteered at Wisconsin's Mission of Mercy, which helps to provide dental care to over 1,500 underserved kids and adults.  She hopes to continue to volunteer in similar programs in her local communities.

In her free time, Dr. Maggie enjoys running, traveling, and summer concerts.  Most of all she enjoys spending time with her family, friends and Baylee!