Dr. Stephanie Kloostra

Dr. Stephanie was born and raised in Grand Rapids, MI. She is a graduate of Grand Rapids Christian High School (2003) and Calvin University (2007). After graduating from Calvin with concentrations in Biology, Biochemistry and Spanish, she worked at the Van Andel Institute as a Research Technician. In 2008, Dr. Stephanie moved to Ann Arbor, where she pursued her dream to become a pediatric dentist.

Dr. Stephanie earned her Doctorate of Dental Surgery (DDS) from the University of Michigan in 2012. Here, she served as the president for the American Academy of Pediatric Dentistry student chapter and was awarded the comprehensive care award for clinical excellence. She continued on to earn her Masters in Pediatric Dentistry from the University of Michigan in 2014, where she met her husband, Dr. Anthony Guinn, who is an Endodontist in Grand Rapids.

Stephanie Kloostra DDS West Michigan Pediatric Dentist

Dr. Stephanie is a Board Certified Pediatric Dentist, Diplomate* of the American Board of Pediatric Dentistry and a Fellow of the American Academy of Pediatric Dentistry. She is also certified through the American Board of Laser Surgery. Dr. Stephanie has been voted a “Top Dentist” and a “Top Dentist for Kids” in Grand Rapids since 2017, and currently serves on the board of the West Michigan Dental Foundation (Past President). She is involved with and enjoys providing continuing education courses for other health care professionals on topics in pediatric dentistry.

Dr. Stephanie has three children, Sophie, Benjamin and Anna. When she is not working, Dr. Stephanie enjoys skiing, boating, traveling, playing games, and spending time with her family and their Golden Retriever, Lucy. Dr. Stephanie loves working with, educating and communicating with children and their parents, especially in situations that may make them feel nervous or apprehensive. She has a true passion for pediatric dentistry.


  • Dr. Stephanie used to be a volunteer Spanish interpreter for Cherry Street Health Clinics.
  • Dr. Stephanie is a proud owner of a 1954 wooden Chris Craft “Golden Getaway”. The boat is named after her love for Golden Retrievers and because it was the “getaway” at her wedding in Bay Harbor, MI.
  • Dr. Stephanie’s favorite games are Settlers of Catan and Scrabble.
  • Dr. Stephanie has one sister who is also a pediatric dentist – she lives and practices in Spokane, WA.
  • Dr. Stephanie’s favorite movie is Legally Blonde (and anything Disney!).
  • Dr. Stephanie was a lifeguard and swim instructor for 9 years at Jolly Roger Swim Club. She also taught private swim lessons for children with special health care needs.
  • Swimming is Dr. Stephanie’s favorite sport!
  • Dr. Stephanie was a competitive cheerleader.
  • Dr. Stephanie’s favorite vacation spot is anywhere along the shores of Lake Michigan in the summer.


  • American Board of Pediatric Dentistry – College of Diplomates
  • Fellow of the American Academy of Pediatric Dentistry
  • Michigan Academy of Pediatric Dentistry
  • American Dental Association
  • Michigan Dental Association
  • West Michigan District Dental Society
  • West Michigan Dental Foundation
  • Kent County Dental Society
  • American Board of Laser Surgery
  • Kenneth A. Easlick Society
  • Junior League of Grand Rapids


Kloostra, SJ. Pediatric Nurses’ Educational Experiences, Knowledge, Professional Attitudes and Behaviors Related to Oral Health Care for their Hospitalized Pediatric Patients. Masters Thesis, Department of Orthodontic and Pediatric Dentistry, University of Michigan School of Dentistry, 2014. Ann Arbor, Mi

Czarnecki GA, Kloostra SJ, Boynton JR, Inglehart MR. Nursing and Dental Students’ and Pediatric Dentistry Residents’ Responses to Experiences with Interprofessional Education. Journal of Dental Education 2014; 78(9):1301-12

Interdisciplinary Dental Management of a Patient with Hypohidrotic Ectodermal Dysplasia: A Case Study. American Academy of Pediatric Dentistry Annual Meeting, Orlando Fl

Matsuda D, Khoo SK, Massie A, Iwamura M, Chen J, Petillo D, Wondergem B, Avallone M, Kloostra SJ, Tan MH. Identification of copy number alterations and its association with pathological features in clear cell and papillary RCC. Cancer Letters 2008; 272(2):260–267.