Thomas Allaway, D.D.S., M.S.
Thomas Allaway, D.D.S., M.S. is a provider specialising in Endodontics in Dekalb, IL, registered under NPI 1003130147.
Getting there
Here is what surrounds this office in Dekalb, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.41 mi away. The nearest transit stop is 0.34 mi away, served by Old Kishwaukee Shelter.
Getting here and what is nearby
Parking 963 ft ~4 min
Transit 18 0.28 mi ~6 min
Transit Health Services at YMCA 0.32 mi ~7 min
Transit Old Kishwaukee Shelter 0.34 mi ~7 min
Parking 0.36 mi ~8 min
Parking 0.41 mi ~9 min
Gas station Circle K - DeKalb Ave 0.43 mi ~9 min
Hotel Holiday Inn Express & Suites 0.43 mi ~9 min
1935 DeKalb Avenue, Sycamore 60178
Restaurant Texas Roadhouse 0.51 mi ~11 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 |
|---|---|---|
| 021001041 | IL | Endodontics primary |
This provider holds licence 021001041 issued in IL. 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 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 | 1003130147 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 18, 2010 |
| Last updated | Mar 18, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | D.D.S., M.S. |
| Practice address |
3251 COMMERCE DR STE A Dekalb, IL 60115 (815) 756-8881 Fax (815) 756-8882 |
| Mailing address |
3251A COMMERCE DR. Dekalb, IL 60115 |
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 | 1 | 3 | 0 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 3 | 0 | 1 | 8 |
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.