.DENNIS L. SCHULZE, D.D.S., P.C.
.DENNIS L. SCHULZE, D.D.S., P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003023805, based in O Fallon, MO. It is classified under General Practice Dentistry.
Getting there
Here is what surrounds this office in O Fallon, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.44 mi away.
Getting here and what is nearby
Restaurant Chuck's Hot Chicken® 211 ft ~1 min
2758 Highway K, O'Fallon 63368
Tu-Sa 11:00-20:00; Su 11:00-19:00
Restaurant Freddy's Frozen Custard & Steakburgers 0.21 mi ~5 min
Convenience QuikTrip 0.28 mi ~6 min
Gas station QuikTrip 0.28 mi ~6 min
Restaurant Taco Bell 0.33 mi ~7 min
102 Fallon Parkway, O'Fallon 63368
Parking 0.44 mi ~9 min
Parking 0.44 mi ~9 min
Parking 0.44 mi ~9 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 014632 | MO | General Practice Dentistry primary |
This provider holds licence 014632 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What General Practice covers
A general dentist is the primary dental care provider for patients of all ages. The general dentist is responsible for the diagnosis, treatment, management and overall coordination of services related to patients' oral health needs. NUCC Health Care Provider Taxonomy, code 1223G0001X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003023805 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 17, 2007 |
| Last updated | Aug 22, 2020 |
| Status | Active |
| Practice address |
4001 HIGHWAY K O Fallon, MO 63368 (636) 926-9221 Fax (636) 926-7209 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 0 | 2 | 3 | 8 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 6 | 8 | 0 |
Sum = 45 · next multiple of 10 = 50 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.