3 clinics ranked by DR ScoreUpdated 0 paid placements in this rankingHow we rank →
Top DR Score among periodontists: Chestnut Street Cosmetic Dent: Chung Jay DDS, 4.7★ from 489 Google reviews, open Saturdays until 6 PM.
Best for weekend appointments: Supertooth at Kentlands, 4.5★ from 91 Google reviews, open Saturdays until 2 PM.
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3 of Gaithersburg’s 89 clinics have a periodontist on staff, as of October 2026. 2 of them open Saturdays and 0 stay open after 6pm. They offer 7 of our 17 tracked services on average.
| Rank | Clinic | DR Score | Rating (reviews) | Evenings / weekends | Best for |
|---|---|---|---|---|---|
| 1 | Chestnut Street Cosmetic Dent: Chung Jay DDS | 71 | 4.7★ (489) | Sat | Top DR Score among periodontists |
| 2 | Gaithersburg Complete Dental Care LLC | 59 | 4.7★ (29) | — | — |
| 3 | Supertooth at Kentlands | 58 | 4.5★ (91) | Sat | Best for weekend appointments |
Ordered by DR Score, a 0–100 score from 6 published factors. Scores refresh weekly.
Ranked #1 in Gaithersburg
101 Chestnut St, Gaithersburg, MD 20877
Ranked #1 because of its Google rating and review volume: 4.7★ from 489 Google reviews, the most Google reviews in Gaithersburg (489).
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
16220 Frederick Rd #400, Gaithersburg, MD 20877
Ranked #2 because of its Google rating and recent reviews: 4.7★ from 29 Google reviews, about 22 reviews in the last 12 months.
237 Kentlands Blvd, Gaithersburg, MD 20878
Ranked #3 because of its Google rating and review volume: 4.5★ from 91 Google reviews, 91 Google reviews.
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This list covers the 3 Gaithersburg clinics that have a periodontist on staff. We scored 3 Gaithersburg clinics on 6 factors: reputation 45%, review volume 15%, recency 10%, access 15%, services 10%, profile completeness 5%. 32 were excluded (1 closed and 31 duplicate listings). Data from Google listings and clinic websites, refreshed October 21, 2026.
Paid placement never changes a rank or score. Featured clinics are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Gaithersburg data |
|---|---|---|---|
| Reputation | 45% | Bayesian-adjusted Google star rating | Measured |
| Review volume | 15% | log10(review count) against the city maximum | Measured |
| Recency | 10% | Share of reviews in the last 12 months | Measured |
| Access | 15% | Evenings, Saturday, Sunday, same-day/emergency, accepting new patients | Measured |
| Services | 10% | Services offered out of 17 | Measured |
| Profile completeness | 5% | Named dentists, years open, languages, insurance, photos | Measured |