Finding a good dentist in Londonderry, New Hampshire starts with the numbers: Dental.me tracks 30 dental practices here, 17 of which carry enough patient feedback to earn a rating, and together they average 4.76 out of five. Start with the highest-scored offices below, then match one to your specific dental need.
What Londonderry’s dental numbers actually tell you
Thirty practices for a town of roughly 25,000 residents is a comfortable ratio, but the headline you should hold onto is the 4.76 average across the 17 rated offices. That is a genuinely high bar for a New Hampshire town this size, and it means the risk in Londonderry is less about avoiding a weak office and more about choosing between several strong ones. The distribution is lopsided toward the top: 13 of the 17 rated practices sit at 4.8 or above, only 2 land in the 4.5-to-4.79 range, and just one apiece fall into the 4.0-to-4.49 band and below 4.0.
Because so much of Londonderry clusters near the ceiling, a raw star number alone will not separate your finalists. A 4.9 backed by 300-plus reviews is telling you something a 4.9 backed by a dozen simply cannot, and the chart below is where you should start before you ever pick up the phone.
The highest-rated dental practices in Londonderry
The table below ranks every top-scored Londonderry office by rating, breaking ties by the number of reviews behind that score, so the practices with the deepest review counts rise within each tier. Towne Square Dental carries the single largest review count in town at 377, while Calvin Dental Associates pairs a 4.9 with 321 reviews, the two clearest examples of a high score standing on a large base of feedback.
| Practice | Rating | Reviews | Profile |
|---|---|---|---|
| Lyons Marilyn S DDS | 5.0 | 198 | View profile |
| Calvin Dental Associates | 4.9 | 321 | View profile |
| Marilyn Lyons | 4.9 | 120 | View profile |
| Gordon Geick | 4.9 | 101 | View profile |
| Towne Square Dental | 4.8 | 377 | View profile |
| Nedg – Londonderry PLLC | 4.8 | 219 | View profile |
Lyons Marilyn S DDS tops the list with a perfect 5.0 across 198 reviews, and two other listings, Marilyn Lyons and Gordon Geick, hold 4.9 ratings with smaller but still substantial review bases of 120 and 101. If you are new to town and want the best-documented first appointment, any office in the 4.8-and-up group is defensible; the review counts simply tell you how much collective experience is standing behind each one.
How the Dental.me Score works in a town this strong
When almost every rated office in Londonderry lands above 4.7, a single star figure stops doing much work. The Dental.me Score exists for exactly this situation. It weighs the star rating alongside how many reviews contributed to it and whether the office’s public details are confirmed, so that a 4.9 resting on a handful of reviews is not treated as identical to a 4.9 resting on hundreds. In a clustered market like this one, that weighting is what actually separates the leaders.
The Score is earned, never sold. No Londonderry practice can buy a higher position or purchase its way up the rankings; the only element that can be paid for anywhere on Dental.me is a Featured placement, which is labeled as such and never changes how a practice’s Score is calculated. When you read the table above, you are reading the town’s real feedback, ordered by it, not an advertising auction.
Website coverage and reaching a Londonderry office
Of the 30 practices Dental.me tracks in Londonderry, 18 have a website URL on file, which is about three in five. That gap matters for how you plan your search. For the 18 with a site on file, you can usually confirm services, new-patient policies, and insurance details before you call. For the remaining 12 with no website URL on file, the practice profile on Dental.me and a direct phone call are your most reliable route to the same answers.
A practical tip: do not read the absence of a site on file as a mark against an office. A missing site on file says nothing about the dentistry, and the scores in the table above are built from the rating and the review record rather than from web presence. The website figure is about how you gather information, not about the quality of the care.
How much feedback stands behind each Londonderry score
Across the rated practices, Londonderry has accumulated 2,089 reviews. That is a healthy volume and it is not spread evenly: the six highest-scored offices alone account for 1,336 of those reviews, which is why their ratings carry more weight than a single number suggests. The chart below shows how the review base concentrates among the leaders.
Use this as a tie-breaker, not a verdict. When two Londonderry offices sit at the same star rating, the one with the larger review base gives you more confidence that the score will hold up over your own first few visits. That is precisely why the ranked table above breaks 4.9-versus-4.9 and 4.8-versus-4.8 matchups by review count.
Specialty care available in Londonderry
Londonderry is well covered beyond routine cleanings. Cosmetic dentistry and teeth whitening each show 7 listings, the widest coverage in town, while dental implants, orthodontics, and endodontics each show 6. For most families that means you can handle a wide range of needs, from a whitening consult to a root canal to braces, without leaving the immediate area.
Start from the specialty you actually need: browse cosmetic dentists in Londonderry if you are weighing veneers or a smile makeover, Londonderry dental implant providers if you are replacing a tooth, or Londonderry orthodontists for straightening. Each list is ranked the same way as the main table, so you are always seeing the strongest options for that service first.
Looking just beyond Londonderry
Londonderry sits at the center of a dense cluster of southern New Hampshire towns, so if your top choice is booked out or does not take your insurance, a strong alternative is often a short drive away. Immediately east, dentists in Derry add a much larger pool of offices, while Windham to the south and Merrimack to the west each bring their own rated practices within an easy commute.
The smart way to use these neighbors is to keep your Londonderry shortlist as the primary target and treat the surrounding towns as backup for scheduling or specialty coverage. Whenever you are ready to compare the full Londonderry field in one place, the Londonderry dentist directory lists all 30 practices with their current scores, so you can move from this guide straight into booking.
Frequently asked questions
How many dentists are there in Londonderry, NH?
Dental.me tracks 30 dental practices in Londonderry. Of those, 17 have accumulated enough patient feedback to carry a rating, and they average 4.76 out of five, which is a strong figure.
Which Londonderry dental practice has the highest rating?
Lyons Marilyn S DDS holds the highest score at a perfect 5.0 across 198 reviews. Three other offices sit at 4.9: Calvin Dental Associates with 321 reviews, Marilyn Lyons with 120, and Gordon Geick with 101.
Which Londonderry office has the most reviews?
The deepest review record in Londonderry belongs to Muhenad Samaan — 378 reviews at a 4.6 rating. Calvin Dental Associates is close behind with 321 reviews and a 4.9, giving both offices a deep base of reviews.
Can I find specialty dental care in Londonderry?
Yes. Londonderry shows 7 cosmetic dentistry and 7 teeth whitening listings, plus 6 each for dental implants, orthodontists, and endodontists, so most specialty needs can be handled locally.
Do all Londonderry dental practices have a website?
No. Of the 30 tracked practices, 18 have a website URL on file and 12 do not. For offices with no website URL on file, the Dental.me practice profile and a direct phone call are the best way to confirm services and new-patient policies.
How does Dental.me rank Londonderry dentists?
The Dental.me Score weighs each practice’s star rating, its review volume, and whether its office details are confirmed. Rankings are earned, never sold; only Featured placement can be paid for, and it never changes how a Score is calculated.
Dental.me organizes dental directory data so patients can compare offices with confidence. Use each practice profile and its available website, map, and phone details for current appointment, payment, and care decisions.