About Dr. Marshall Olson
Dentists along I-35 in Denton tend to cluster near the university or downtown, but Dr. Marshall Olson keeps an office just south of the highway, tucked into the stretch where medical practices outnumber coffee shops. The area’s a mix of older brick storefronts and low-slung professional buildings, the kind of place where students from UNT’s dental hygiene program might cross paths with longtime residents needing a checkup. Routine cleanings, fillings, and crowns are all on the table here—no specialty frills, just the standard preventative and restorative work that keeps a practice running. It’s the sort of spot where you’d schedule a last-minute appointment for a chipped tooth or finally address that lingering sensitivity to cold.
Finding the office at 721 S Interstate 35, Suite 206 E is simpler if you’re coming from the southbound side, though the map can clarify any confusion: directions here. For new patient forms or to book a slot over the phone, (940) 380-1188 connects directly to the front desk. No online portal, no social media fanfare—just a straightforward listing and a map pin to confirm you’ve got the right door.
This listing was last updated on April 22, 2026