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Dr. Michael Cotter

Endodontist
4.9 (25 reviews) Updated Apr 29, 2026
515 Halstead Ave, Mamaroneck, NY 10543

About Dr. Michael Cotter

Dr. Michael Cotter specializes in endodontics on Halstead Avenue, treating the deeper layers of teeth behind the scenes. When an injury or infection reaches those spots, endodontic work preserves the whole tooth. Root canals, retreatment, and apicoectomies get right to the source to avoid extractions. The practice also offers internal bleaching for discolored teeth long after a root canal—a subtle way to brighten things up without new crowns. For cracked teeth or incidental trauma, a quick CBCT scan helps plan the best approach. They keep it clinical and efficient, no waits for basic exams.

If Halstead Avenue feels familiar, the office is wedged between the post office and the mini-mart at the bend past the traffic light. 515 Halstead Ave, Mamaroneck, NY 10543 sits right where the single-bay car-wash used to be, tucked under the shadow of St. Vito’s overpass.

Call ahead and (914) 777-9465 lets you know which entrance to use when you get there. They don’t need a formal referral to check a toothache or schedule re-treatment.

Skip the highway detours—use the map here: directions should drop you on the north side of the block in five minutes.

This listing was last updated on April 29, 2026

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Wheelchair accessible entrance
Wheelchair accessible parking lot
Wheelchair accessible restroom
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