219 East Main Street
Gaylord, MI 49735

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Our Team

Maggie Granahan

Maggie is Main Oak Family Dentistry’s office manager.  She has lived in the Gaylord area since 1987 and has been with the practice since 2005.  Previous to her move, she had studied at Central Michigan University in the hospitality program.  Maggie and her husband, Tim, have one son and two daughters, a daughter-in-law and a son-in-law.  A toy schnauzer named Charlie rounds out the Granahan family.  When not managing our office, Maggie enjoys gardening and travel.



Casey Gelow

Casey has been Dr. Hoyner's chairside dental assistant since 2012.  After graduating from Gaylord High School she attended Western Michigan University where she earned a Bachelor of Arts degree with a major in Advertising and Promotion and a minor in General Business.


Outdoor adventure is Casey's passion; her previous endeavors include skydiving and competitive running.  Currently she is enjoying Grand Traverse Bay paddleboarding as often as her schedule allows.   



 Kim Sewell, RDH

Kim Sewell and her husband, John, are thrilled to be making Gaylord their permanent residence, returning to John's hometown.  Having recently purchased a house and adopted two cats, Lucy and Amos, they are now settled and excited to become involved in the community.  


Kim grew up in Niles, MI and obtained her Bachelor of Science in Dental Hygiene degree from Ferris State University.  She was a registered dental hygienist in Frankfort, MI before accepting her position at MainOak Family Dentistry in 2013. Feel free to challenge Kim with any question regarding trends in dentistry as she loves exploring evidence-based research to satisfy her curiosity as well as to educate her patients.


When not working or doing DIY projects at her house Kim can be found enjoying the great Up North outdoors--hiking, biking, kayaking or playing in the snow.


Mallory Mulka, RDH

Mallory has been part of our Main Oak Family Dentistry team since 2006.  She took some time away to attend Ferris State University’s School of Dental Hygiene, graduating in 2010, then returned to lead our hygiene department.  In her leisure time Mallory loves outdoor activities including running, biking, and Jeep rides.  She also is an avid crafter, her main focus being knitting, sewing, and soap making.  Mallory has enjoyed getting to know her patients as individuals and looks forward to managing their continuing care.

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