28 clinics ranked by DR ScoreUpdated 0 paid placements in this rankingHow we rank →
Top DR Score among weekend and evening dentists: Dental Suite, 4.7★ from 98 Google reviews, open evenings until 8 PM and Saturdays until 6 PM.
Best for Saturdays: Woo Wang Dental, 4.8★ from 842 Google reviews, open Saturdays until 2 PM.
Best for Sundays: Dr. Behzad Mirdamadi, DDS, 4.3★ from 12 Google reviews, open 7 days until 12 AM.
Best for evenings: Smile Improvers Dental Center: Dr. Farrokh Erfan, DDS, DR Score 73, open 7 days until 12 AM.
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28 of Gaithersburg’s 89 clinics open Saturdays, Sundays or after 6pm, as of October 2026. 28 open on Saturdays, 2 on Sundays and 7 after 6pm. 2 are open 7 days a week.
| Rank | Clinic | DR Score | Rating (reviews) | Evenings / weekends | Best for |
|---|---|---|---|---|---|
| 1 | Dental Suite | 80 | 4.7★ (98) | Evenings · Sat | Top DR Score among weekend and evening dentists |
| 2 | Woo Wang Dental | 75 | 4.8★ (842) | Sat | Best for Saturdays |
| 3 | Dr. Behzad Mirdamadi, DDS | 74 | 4.3★ (12) | Evenings · Sat · Sun | Best for Sundays |
| 4 | Quince Orchard Dental Care | 74 | 4.8★ (938) | Sat | — |
| 5 | Smile Improvers Dental Center: Dr. Farrokh Erfan, DDS | 73 | — | Evenings · Sat · Sun | Best for evenings |
| 6 | Dr. Michelle M Janbakhsh, DDS - Modern Smile Dental | 72 | 4.9★ (205) | Sat | — |
| 7 | Tong Dental Care | 71 | 4.7★ (580) | Sat | — |
| 8 | Chestnut Street Cosmetic Dent: Chung Jay DDS | 71 | 4.7★ (489) | Sat | — |
| 9 | Gaithersburg Sedation & Family Dentistry | 69 | 4.8★ (184) | Evenings · Sat | — |
| 10 | Gaithersburg Modern Dentistry | 68 | 4.5★ (138) | Evenings · Sat | — |
Posted weekly hours for the highest-ranked clinics open on weekends or after 6pm.
Mon 10 AM–8 PM · Tue–Sat 12 AM–12 AM · Sun 12 AM–6 PM
Emergency care · Evenings · Saturday · Sunday
Smile Improvers Dental Center: Dr. Farrokh Erfan, DDS#5
Mon–Sun 12 AM–12 AM
Emergency care · Evenings · Saturday · Sunday
Dr. Michelle M Janbakhsh, DDS - Modern Smile Dental#6
Mon 11 AM–6 PM · Tue 10 AM–3 PM · Wed 9 AM–2 PM · Thu 9 AM–5 PM · Fri 9 AM–4 PM · Sat 9 AM–2 PM · Sun closed
Saturday
Ordered by DR Score, a 0–100 score from 6 published factors. Scores refresh weekly.
Ranked #1 because of its Google rating and review volume: 4.7★ from 98 Google reviews, 98 Google reviews.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
17 Firstfield Rd Suite 101, Gaithersburg, MD 20878, United States
Ranked #2 because of its Google rating and review volume: 4.8★ from 842 Google reviews, 842 Google reviews.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
Rated as a top Gaithersburg Dentist, our team is dedicated to providing excellence in all fields of dental care. It is our goal to earn your trust through top-notch service and gentle, patient-focused education and treatment. Woo Wang Dental offers convenient Saturday hours, same-day emergency appointments, and other flexible scheduling options. Our team is happy to help you when you need it! We're proud to offer a supportive environment, an honest approach, and…
From Woo Wang Dental's own description. Not part of the ranking.18218 Flower Hill Way, Gaithersburg, MD 20879, United States
Ranked #3 because of its Google rating and access: 4.3★ from 12 Google reviews, open 7 days until 12 AM.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
845 Quince Orchard Blvd Suite H, Gaithersburg, MD 20878
Ranked #4 because of its Google rating and review volume: 4.8★ from 938 Google reviews, the most Google reviews in Gaithersburg (938).
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
We are a Multi Specialty Practice. At Quince Orchard Dental Care our entire staff, from our general dentists and Pediatric dentists to our support staff, aim to provide the best service possible in the industry. We are proud to say that our office is a complete health practice. we place a very strong emphasis on how a patients oral health relates to their overall health. We provide affordable dental care but we refuse to compromise on the dentistry and service we provide for…
From Quince Orchard Dental Care's own description. Not part of the ranking.438 N Frederick Ave STE 100, Gaithersburg, MD 20877
Ranked #5 because of access and services: open 7 days until 12 AM, 17 of 17 services offered.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
901 Russell Ave #100, Gaithersburg, MD 20879
Ranked #6 because of its Google rating and review volume: 4.9★ from 205 Google reviews, 205 Google reviews.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
903 Russell Ave #200, Gaithersburg, MD 20879
Ranked #7 because of its Google rating and review volume: 4.7★ from 580 Google reviews, 580 Google reviews.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
For over 30 years, Dr. James Tong of Tong Dental Care has served the Gaithersburg, Maryland community with quality work, top patient care, and utilizing the most advanced dental technology available. From Full-Service Care, Cosmetic Dentistry, Restorative Dentistry, Sedation Dentistry, Implant Restoration, Pediatrics Dentistry, Oral Hygiene, Sleep Apnea, Night Guards, TMJ Treatment, and dental emergencies. Dr. James Tong can help! One of Maryland’s most highly rated dental…
From Tong Dental Care's own description. Not part of the ranking.101 Chestnut St, Gaithersburg, MD 20877
Ranked #8 because of its Google rating and review volume: 4.7★ from 489 Google reviews, 489 Google reviews.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
604 S Frederick Ave Suite 209, Gaithersburg, MD 20877
Ranked #9 because of its Google rating and review volume: 4.8★ from 184 Google reviews, 184 Google reviews.
General dentistryEmergency careImplantsCrownsBondingCosmeticFull restoration
Welcome to our practice, Gaithersburg Sedation & Family Dentistry, where we are committed to making sure your dental experience is comfortable, personalized, and affordable. At our practice we strive to provide our patients with comprehensive care where all their dental needs are met at the utmost comfort. Dr. Fatemi is among the very few cosmetic dentist, root canal dentist, and family dentist in Maryland that holds a certificate for Moderate Sedation Dentistry. Call us…
From Gaithersburg Sedation & Family Dentistry's own description. Not part of the ranking.812 Muddy Branch Rd, Gaithersburg, MD 20878
Ranked #10 because of its Google rating and review volume: 4.5★ from 138 Google reviews, 138 Google reviews.
9027 Shady Grove Ct, Gaithersburg, MD 20877
Ranked #11 because of its Google rating and services: 4.2★ from 54 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
312 S Frederick Ave, Gaithersburg, MD 20877, United States
Ranked #12 because of its Google rating and services: 5.0★ from 8 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
808 Muddy Branch Rd, Gaithersburg, MD 20878
Ranked #13 because of its Google rating and review volume: 4.7★ from 213 Google reviews, 213 Google reviews.
General dentistryEmergency careImplantsCrownsBondingCosmeticFull restoration
Our dentists at Muddy Branch Dental Group are committed to providing holistic dental services in a friendly, compassionate atmosphere. From seniors to children, we strive to deliver first-rate, comprehensive care for patients of all ages. We understand that choosing a dentist can be a daunting task. We would like the opportunity to show you how wonderful dental visits can be.
From Muddy Branch Dental Group's own description. Not part of the ranking.108 Olde Towne Ave # 8, Gaithersburg, MD 20877, United States
Ranked #14 because of its Google rating and services: 4.3★ from 30 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
610 Professional Dr #250, Gaithersburg, MD 20879
Ranked #15 because of its Google rating and services: 4.7★ from 14 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
9087 Shady Grove Ct, Gaithersburg, MD 20877, United States
Ranked #16 because of its Google rating and review volume: 4.8★ from 103 Google reviews, 103 Google reviews.
General dentistryEmergency careImplantsCrownsBondingCosmeticFull restoration
115 Market St, Gaithersburg, MD 20878
Ranked #17 because of its Google rating and services: 4.3★ from 11 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
8939 Shady Grove Ct, Gaithersburg, MD 20877
Ranked #18 because of its Google rating and review volume: 4.6★ from 136 Google reviews, 136 Google reviews.
4 Professional Dr STE 121, Gaithersburg, MD 20879, United States
Ranked #19 because of its Google rating and services: 2.7★ from 25 Google reviews, 17 of 17 services offered.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
237 Kentlands Blvd, Gaithersburg, MD 20878
Ranked #20 because of its Google rating and review volume: 4.5★ from 91 Google reviews, 91 Google reviews.
120 Ellington Blvd, Gaithersburg, MD 20878
Ranked #21 because of services and access: 17 of 17 services offered, open evenings until 7 PM and Saturdays until 3 PM.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
Ranked #22 because of services and access: 17 of 17 services offered, open Saturdays until 4 PM.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
Our team of general dentists and specialists are here to service your entire family’s needs under one roof. We have been proudly serving the Kentlands, Gaithersburg, and Kensington cities of Montgomery County for over 45 years. We practice a full scope of general and cosmetic dentistry with expertise ranging from porcelain veneers to dental implants, crowns, bridges, and Invisalign. We are a group practice that strives to provide state of the art and affordable dental care…
From Robert J Kelly DDS & Associates's own description. Not part of the ranking.308 Main St, Gaithersburg, MD 20878, United States
Ranked #23 because of services and access: 17 of 17 services offered, open Saturdays until 2 PM.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
8 Russell Ave STE 105, Gaithersburg, MD 20877
Ranked #24 because of services and access: 17 of 17 services offered, open Saturdays until 4 PM.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
839 Quince Orchard Blvd suite a, Gaithersburg, MD 20878, United States
Ranked #25 because of services and access: 17 of 17 services offered, open Saturdays until 12 PM.
Based on access, services and profile completeness; Google ratings not yet collected.
General dentistryCleaningEmergency careRoot canalExtractionWisdom teethImplantsInvisalign+9 more
#1 to #25 are shown in full above. Here are #26 to #28, in DR Score order; each links to its full profile.
| Rank | Clinic | DR Score | Evenings / weekends |
|---|---|---|---|
| 26 | Suburban Dental Associates | 47 | Sat |
| 27 | Steven L Rattner & Associates | 47 | Sat |
| 28 | Clarke Claire L DDS | 43 | Sat |
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This list covers the 28 Gaithersburg clinics that open Saturdays, Sundays or after 6pm. We scored 28 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 |