Timothy Maher, DDS,MS
Timothy Maher, DDS,MS is a provider specialising in Endodontics in Saint Louis, MO, registered under NPI 1003211137.
Getting there
Here is what surrounds this office in Saint Louis, based on OpenStreetMap data collected Sep 11, 2026. Parking is available about 0.49 mi away. The nearest transit stop is 610 ft away, served by West Florissant at Euclid.
Getting here and what is nearby
Parking 258 ft ~1 min
Transit West Florissant at Euclid 491 ft ~2 min
Transit West Florissant at Kingshighway 565 ft ~3 min
Transit West Florissant at Euclid 610 ft ~3 min
Parking 0.49 mi ~10 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 |
|---|---|---|
| 015204 | MO | Endodontics primary |
This provider holds licence 015204 issued in MO. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Other (non-physician)
- PAC ID
- 0941599864
- Enrollment ID
- I20160517000978
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Other (non-physician). Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Endodontics covers
The branch of dentistry that is concerned with the morphology, physiology and pathology of the human dental pulp and periradicular tissues. Its study and practice encompass the basic and clinical sciences including biology of the normal pulp, the etiology, diagnosis, prevention and treatment of diseases and injuries of the pulp and associated periradicular conditions. NUCC Health Care Provider Taxonomy, code 1223E0200X
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003211137 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 31, 2014 |
| Last updated | Oct 31, 2014 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DDS,MS |
| Practice address |
10777 SUNSET OFFICE DR STE 100 Saint Louis, MO 63127 (314) 822-2210 |
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 | 2 | 1 | 1 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 1 | 2 | 1 | 6 |
Sum = 43 · next multiple of 10 = 50 · check digit = 7 · actual last digit = 7
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.