About Mason Robert a DDS
Mason Robert a DDS practices general dentistry on the south side of Fort Smith. At 609 S 21st St—between Rogers and H Street—the office anchors a quiet stretch of the Grand Prairie neighborhood. Keep an eye out for the mint-green sign above the door.
They deliver routine cleanings, periodontal scaling, and oral hygiene guidance, then move on to fillings, crowns, bridges, and removable prosthetics. Six-month check-ups and digital imaging come standard, and they’ll show you the results on a chairside monitor. If sleep disruption or jaw discomfort keeps you up at night, they’ll explore options beyond the typical nightguard.
The block sits two short blocks north of the Alma Lewis Elementary boundary; parking lines the side streets on weekdays after 9 a.m. Residents call it convenient, and visitors rarely need more than two left turns off Rogers Avenue to reach the front door.
Dial (479) 782-5686 when you’re two minutes out, then follow the maps listing for the final stretch: https://www.google.com/maps/place?ftid=0x87ca4cb8f6e82943:0xefa3c181dfdbf0fd
This listing was last updated on April 26, 2026