Riordan Thomas P DDS

Dentists in Rockville Centre tend to cluster near the train station, but the quieter stretch of North Park Avenue still draws steady foot traffic from locals who prefer to avoid the weekend rush. Riordan Thomas P DDS keeps an office at 64 N Park Ave #101, a block where the sidewalks stay wide enough for strollers and the metered parking doesn’t vanish by noon. Routine cleanings, fillings, and crown work share the schedule with less frequent procedures like root canals and extractions, so there’s usually a slot that fits the urgency of whatever molar decided to act up.

Rockville Centre residents who need a crown or a bridge often end up here because the practice handles the full cycle—from the initial impression to the final cementation—without shuttling patients between multiple offices. They also see a fair number of emergency cases; a same-day appointment can save a weekend of ibuprofen and soft foods. The building itself is a low-slung brick strip that blends into the neighborhood, so first-timers sometimes walk past the door once before spotting the discreet sign.

When the filling you’ve been ignoring starts to throb on a Friday afternoon, the number to reach them is (516) 536-4455—best dialed before the painkillers wear off. The receptionist usually answers within a few rings, and if the schedule is full they’ll at least suggest a nearby clinic that keeps late hours. No one enjoys a dental visit, but the walk from the Long Island Rail Road station is short enough that you can squeeze it between errands without rearranging the whole day.

For directions, pull up the map here and set the destination to 64 N Park Ave #101; the GPS dot lands right on the awning. Street parking is metered until six, so bring quarters or the app.