215 S. Center Street
Sheridan    MI   48884

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10 am - 7 pm
8 am - 12:30 pm, 2 pm -5 pm
Wednesday - Thursday
8 am - 1 pm, 2 pm - 5 pm
Closed Fridays

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Dr. John P. Marshall,   D. D. S.

B.S. in Ed., Central Michigan University, 1978
D.D.S., University of Michigan School of Dentistry, 1988


Dr. John graduated from Benzie Central High School in 1974.  He received his teaching degree from CMU, returned to Benzie County and taught elementary grades and coached middle and high school sports.  He and his wife, Connie, married in 1980.  She grew up in Sumner and Alma and they met at CMU.

The Michigan economy stumbled in the mid 80's and both Connie and John's teaching jobs were cut.  Dr. John returned to CMU to continue his education and gained acceptance to U of M, graduating with his DDS in 1988.

Dr. John is a member of the local, state and American Dental Associations.  He has been nominated and accepted into the American College of Dentists.  He has served on multiple local and state committees, boards and foundations, including several as the president.

Dr. John and Connie have two daughters.  Connie teaches Spanish and French at a Grand Rapids area school.  Dr. John continues to enjoy competitive sports in his free time, including tennis and being a nationally ranked slalom water-skier.


Dr. Kyle Blau,   D. D. S.

B.S. in Science, Lake Superior State Universtiy, Suma cum lade, 2009
D.D.S., University of Detroit Mercy, 2013

Dr. Blau is a life-long resident of Michigan and has called West Michigan his home since 2013. He was born and raised in the Upper Peninsula of Michigan. He completed his bachelor’s degree at Lake Superior State University, with a major in Biology and minor in Chemistry. Kyle graduated Suma cum lade from LSSU in 2009. He and his wife, Crystal, moved to the metro-Detroit area in 2009, for him to study dentistry at the University of Detroit Mercy School of Dentistry. Dr. Kyle graduated amongst the top 10 of his class with a Doctorate of Dental Surgery Degree (DDS),  he received the Quintessence Publishing Clinical Periodontal Award prior to graduation, and was also selected by faculty members into the prestigious Omicron Kappa Upsilon Nu Nu Chapter National Dental Honor Society. In addition, Dr. Blau has completed an advanced periodontal clerkship program during his last year of training.

Upon graduation in 2013, Dr. Blau and his wife, Crystal,  moved to Greenville, MI to pursue an opportunity to provide dental care to those who were underserved in the region. While in Detroit, he was able to treat many homeless veterans, and other local patients who were in dire need of dental care. He believed that there was a need in West Michigan that he could help serve. He strives to provide excellent dental care and is passionate about continuing education and honing is clinical skills. Dr. Blau finds all aspects of general dentistry exciting, and enjoys providing comprehensive dentistry. He has taken numerous continuing education courses and maintains active memberships in the American Dental Association, Michigan Dental Association, Academy of General Dentistry, West Michigan District Dental Society, and Montcalm & lonia Dental Associations.

In his spare time, he enjoys spending time with Crystal and their newest addition to the family, “AJ” (born Jan 2016). They have two small dogs, "Graham” and “Gracie" that are loyal companions. Dr. Blau has been an active-member at the church he attends, Calvary of Greenville. He enjoys exercising, hiking, basketball, hunting, and wake boarding as well. He is from a small town, just like Sheridan, and is very excited to be a part of our team, and a part of the local community.

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