(815) 288-4028

Dr. James J Grunauer DDS

Dr. James Grunauer D.D.S. received his undergraduate degree in biology at Loyola University of Chicago in 1981.  He then attended Loyola University Dental School where he graduated in 1985.  After practicing in DeKalb, IL for two years, Dr. Grunauer re-located his family to the Sauk Valley area in 1987 where he has been practicing all phases of general dentistry ever since.


In 1997 Dr. Grunauer built his present office building on the corner of Illinois Route 2 and Reynoldswood  Road on the west side of Dixon.  The office was then re-named Sauk Valley Dental.  Dr. Grunauer and his staff strive to provide all patients with quality dentistry in a comfortable environment with a reasonable fee schedule.


Sauk Valley Dental accepts all dental insurances and has been a Delta Dental Premier Provider for 3 years.  Care Credit is also offered as a financing option.


Dr. Grunauer is a member of the American Dental Association, the Lee-Whiteside Dental Society and the Illinois State Dental Society.  His interests range from fishing to motorcycle riding. He is currently learning to play the guitar. He also enjoys traveling and spending time with his family…especially with his grandchildren.

Dr. Maria Zalduendo DDS

Dr. Maria Zaluendo completed her undergraduate studies at Loyola University in Chicago.  She then attended the University Illinois Dental College where she graduated in 1983 with her Doctor of Dental Surgery (DDS).  Dr. Maria spent most of her career in the Chicago area, where she and her husband of 26+ years, raised their three children.  Her professional philosophy is; “I work to restore a healthy, beautiful smile while treating my patients compassionately and gently.  I also like to educate my patients so that we can prevent further disease in an open and friendly atmosphere.”


Similarly to Dr. Grunaer, Dr. Maria is a Delta Dental Premier Provider. Dr. Maria is a member of the American Dental Association, Illinois State Dental Society, Chicago Dental Society, and the Pacific Aesthetic Continuum Study Club.  In her free time, she enjoys traveling, skiing, hiking, and raising honey bees.