Dr. John Mark Leib, DMD
Dr. John Mark Leib, DMD is a Dentist in O Fallon, Illinois. Licensed in Illinois. Registered with an NPI since 2006.
- Licensed in
- IL
- In the registry since
- 2006
- Specialties on file
- 2
What do these letters mean?
- DMD — Doctor of Dental Medicine
- A dentist. Identical training and licensing to a DDS.
Practice location Address checks out
741 W State St Ste 3O Fallon, IL 62269-1971
Phone: (618) 628-1800
Fax: (618) 628-3406
Show map & directions
Directions in Google Maps · Apple Maps · OpenStreetMap
Pin is approximate — placed at the ZIP-code centre, not the exact door.
Specialties & licences
| Dentist (primary) | Taxonomy 122300000X (IL) |
|---|---|
| Oral and Maxillofacial Surgery (Dentist) | Taxonomy 1223S0112X (IL) |
Record details
| NPI number | 1376604678 |
|---|---|
| Entity type | Individual (Type 1) |
| Gender | Male |
| Credentials | DMD |
| Sole proprietor | No |
| NPI enumerated | December 12, 2006 |
| Last updated in NPPES | September 11, 2025 |
| Mailing address | 741 W State St, Suite 3, O Fallon, IL 62269-1971 |
Other providers in O Fallon
-
Dr. Gregory Biddulph, DMD
1490 N Green Mount Rd Ste B, O Fallon, IL 62269-3416 · (618) 632-1603
-
Dr. Brittany Gilbreth, DMD
741 W State St Ste 1, O Fallon, IL 62269-1971 · (618) 632-2282
-
Innovation Dental and Implant LLC
717 Insight Ave, O Fallon, IL 62269-2151 · (618) 277-6550
-
Dr. Amanda Littlefield, DMD
1490 N Green Mount Rd Ste A, O Fallon, IL 62269-3416 · (618) 622-9720
-
Parker Roustio DMD Inc
1002 E Wesley Dr Ste 200, O Fallon, IL 62269-6143 · (618) 628-7080
-
Dr. Jessica Jade Pucci, DMD
1707 W Highway 50, O Fallon, IL 62269-1624 · (618) 206-5488
-
Caroline Roti, DMD
1490 N Green Mount Rd Ste A, O Fallon, IL 62269-3484 · (618) 622-9720