4 clinics ranked by DR ScoreUpdated 0 paid placements in this rankingHow we rank →
Top DR Score among periodontists: Greensborough Dental | Dr. Afshin Riazi, 4.9★ from 140 Google reviews, open evenings until 8 PM and Saturdays until 4 PM.
Best for weekend appointments: Dr. Arsen Keleshian, 5.0★ from 12 Google reviews, open evenings until 7 PM and Saturdays until 3 PM.
Best for evenings: Smile Studio Dental Markham, 4.7★ from 104 Google reviews, open evenings until 7 PM.
Rankings can't be bought. Booking through us earns you a $60 gift card and doesn’t affect order. How we rank
4 of Markham’s 186 clinics have a periodontist on staff, as of October 2026. 2 of them open Saturdays and 3 stay open after 6pm. They offer 1 of our 17 tracked services on average.
| Rank | Clinic | DR Score | Rating (reviews) | Evenings / weekends | Best for |
|---|---|---|---|---|---|
| 1 | Greensborough Dental | Dr. Afshin Riazi | 65 | 4.9★ (140) | Evenings · Sat | Top DR Score among periodontists |
| 2 | Smile Studio Dental Markham | 64 | 4.7★ (104) | Evenings | Best for evenings |
| 3 | Dr. Arsen Keleshian | 58 | 5.0★ (12) | Evenings · Sat | Best for weekend appointments |
| 4 | Markham Village Dental | 5 | — | — | — |
Ordered by DR Score, a 0–100 score from 6 published factors. Scores refresh weekly.
Ranked #1 in Markham
50 Greensborough Village Cir, Markham, ON L6E 1M1
Ranked #1 because of its Google rating and review volume: 4.9★ from 140 Google reviews, the most Google reviews in Markham (140).
8500 Leslie St, Markham, ON L3T 7M8
Ranked #2 because of its Google rating and review volume: 4.7★ from 104 Google reviews, 104 Google reviews.
9249 Kennedy Rd Unit 102, Markham, ON L3R 6H8
Ranked #3 because of its Google rating and access: 5.0★ from 12 Google reviews, open evenings until 7 PM and Saturdays until 3 PM.
3 Centre St Ste 201, Markham, ON L3P 3P9
Ranked #4 because of services: 1 of 17 services offered.
Based on access, services and profile completeness; Google ratings not yet collected.
Answer 2 quick questions and we'll help you find a dentist that fits your needs, location and availability.
Book through DentistsRanked and get a $60 Amazon gift card. Terms
Step 1 of 2
This list covers the 4 Markham clinics that have a periodontist on staff. We scored 4 Markham clinics on 6 factors: reputation 45%, review volume 15%, recency 10%, access 15%, services 10%, profile completeness 5%. 4 were excluded (4 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 Markham 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 |