Location & directions
Map showing the location of Dr. Thomas Guernsey, 521 Summit St in Fostoria, Ohio.
521 Summit St, Fostoria, OH 44830
Colored pin = Dr. Thomas Guernsey. Other pins are nearby dentists from this directory.
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Listing data last updated 2026-06-17.
Listing data is compiled from public sources and may be out of date. Summaries are generated automatically from public business data and may be incomplete. Confirm details directly with the practice. Inclusion is not an endorsement, and this is not medical advice.