MEDDER MARK L DMD, O'Fallon dentist
MEDDER MARK L DMD is a general dental practice in O'Fallon, open 7 days a week, with evening hours on 2 days and 7 of 17 tracked services.
O'Fallon, ILUpdated 0 paid placements in any rankingHow we rank
Key facts
| Address | 1403 S Lincoln Ave, O'Fallon, IL 62269Get directions |
|---|---|
| Phone | (618) 624-8532 |
| Website | markmedderdmd.com |
Opening hours
| Day | Hours |
|---|---|
| Monday | 8 AM – 5 PM |
| Tuesday | 8 AM – 5 PM |
| Wednesday | 8 AM – 5 PM |
| Thursday | 8 AM – 5 PM |
| Friday | 8 AM – 5 PM |
| Saturday | 12 AM – 12 AMevening |
| Sunday | 12 AM – 12 AMevening |
- Open evenings (after 6 PM)
- Open Saturdays
- Open Sundays
Services
Each offered service links to the ranked list for O'Fallon.
| Service | Offered |
|---|---|
| General Dentistry | Yes |
| Emergency Care | Yes |
| Dental Implants | Yes |
| Dental Crowns | Yes |
| Dental Bonding | Yes |
| Cosmetic Dentistry | Yes |
| Full Restoration | Yes |
| Teeth Cleaning | Not listed |
| Root Canal | Not listed |
| Tooth Extraction | Not listed |
| Wisdom Teeth Removal | Not listed |
| Invisalign | Not listed |
| Braces | Not listed |
| Dentures | Not listed |
| Veneers | Not listed |
| Teeth Whitening | Not listed |
| Cosmetic Fillings | Not listed |
Compare nearby O'Fallon dentists
| Clinic | Rank | DR Score | Evenings | Saturday | Sunday | Distance |
|---|---|---|---|---|---|---|
| MEDDER MARK L DMD (this clinic) | #16 | 47 | Yes | Yes | Yes | |
| Dentist | #1 | 67 | No | No | No | 0.0 mi |
| Rottschalk John L DDS | #11 | 67 | No | No | No | 0.2 mi |
| Soft Touch Dentistry | #27 | 37 | No | No | No | 0.2 mi |
Questions about MEDDER MARK L DMD
What are MEDDER MARK L DMD's hours?
MEDDER MARK L DMD is open 7 days a week. On Saturdays it is open 12 AM to 12 AM, and on Sundays 12 AM to 12 AM. It stays open late on Saturday and Sunday until 12 AM. These hours come from the clinic's business listing as of October 2026; holiday hours may differ.
Where is MEDDER MARK L DMD?
MEDDER MARK L DMD is at 1403 S Lincoln Ave, O'Fallon, IL 62269. Use the directions link on this page to plan your route. Ask the clinic about parking and building access before your first visit.
Does MEDDER MARK L DMD offer emergency or same-day appointments?
Yes. MEDDER MARK L DMD lists emergency dental care on its profile as of October 2026. It is open 7 days a week. Call ahead on (618) 624-8532 to check today's availability, and go to a hospital for facial swelling or trouble breathing.
What services does MEDDER MARK L DMD offer?
MEDDER MARK L DMD lists 7 of the 17 services DentistsRanked tracks, including general dentistry, emergency care, implants, crowns, bonding, cosmetic and full restoration. The full list, with links to ranked lists for each service in O'Fallon, is in the services table on this page.
How is MEDDER MARK L DMD ranked?
MEDDER MARK L DMD is ranked #16 of 37 dentists in O'Fallon by DR Score, with 47 out of 100. The score combines reputation, review volume, recency, access, services and profile completeness. No clinic can pay to change its rank.
Data last refreshed October 21, 2026
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Owners can correct hours, services and dentists. The score is recalculated from the corrected data; payment never changes it.