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Michael J. Donnelly DDS

Dentist
111 Smithtown Bypass # 210, Hauppauge, NY 11788

About Michael J. Donnelly DDS

Dentists in Hauppauge don’t always feel like a chore, though finding one that fits the rhythm of the neighborhood can take a minute. Michael J. Donnelly DDS keeps things simple on the Smithtown Bypass, tucked into suite 210 at 111 Smithtown Bypass. Routine cleanings, fillings, crowns, and root canals are handled without the usual fuss—just the kind of straightforward care that makes the drive from Commack or Central Islip feel less like a detour and more like part of the routine. The office picks up at (631) 979-0600 when you’re ready to book, and the map keeps the directions clear enough to avoid the usual Route 347 traffic snarls.

Hauppauge itself is the kind of place where strip malls and office parks blend into the background, but the right dentist still manages to stand out. Extractions, bridges, and even the occasional emergency visit are part of the mix, though you’d never know it from the way the appointments move—no extra drama, just the basics done right. For anyone who’s ever circled the block looking for the right entrance, the maps listing lays it out plainly: here’s where to turn.

This listing was last updated on April 29, 2026

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Business Hours

Business Details

Accessibility
Wheelchair accessible entrance
Wheelchair accessible parking lot
Offerings
Pediatric care
Amenities
Restroom
Planning
Appointments recommended
Payments
Credit cards
Debit cards
Parking
On-site parking