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Dr. Mark D. Simpson, DDS

Endodontist
3.9 (19 reviews) Updated Mar 21, 2026
121 County Rd # 1 Tenafly, NJ 07670

About Dr. Mark D. Simpson, DDS

Along the quieter stretches of County Road in Tenafly, endodontic care doesn’t always grab headlines. But for those needing root canals, retreatment, or trauma-related dental procedures, Dr. Mark D. Simpson, DDS offers specialized treatment in a borough where precision matters. Endodontists focus solely on the tooth’s inner layers—pulp, nerves, the intricate networks that general dentists often refer out. This practice handles cases where deep decay, cracks, or infections demand more than a filling or crown.

Finding the office is simple: it sits at 121 County Rd #1, a short drive from the Englewood border and just north of the Route 4 corridor. Tenafly’s mix of residential calm and professional hubs makes it a practical spot for patients coming from Bergen County’s busier towns. Feedback on the practice is measured but steady, with 19 Google reviews averaging 3.9 stars. That kind of rating suggests a no-frills, procedure-focused experience—exactly what you’d expect from a specialist dealing with urgent dental pain or complex tooth anatomy.

Questions about treatment options or post-op care? The practice can be reached directly at (201) 568-8848. Unlike general dentistry, endodontics often involves same-day relief for severe discomfort, so having a dedicated number for urgent cases is key. The focus here isn’t on whitening or aligners but on saving natural teeth—whether through microsurgery, diagnosing hidden canals, or managing persistent infections that antibiotics alone can’t resolve.

For first-time visitors, the map confirms what locals already know: this stretch of County Road is more functional than flashy. And honestly, when you’re dealing with a cracked molar at 2 a.m., flashy is the last thing on your mind.

This listing was last updated on March 21, 2026

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Business Details

Accessibility
Wheelchair accessible entrance
Wheelchair accessible parking lot
Wheelchair accessible restroom
Amenities
Restroom
Planning
Appointment required
Appointments recommended
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