ACTON DENTAL ASSOCIATES, P.C.
ACTON DENTAL ASSOCIATES, P.C. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1821133166, based in Acton, MA. The organization lists 3 taxonomy classifications, with Dentist recorded as primary.
Getting there
The practice address on file is 179 GREAT RD SUITE 204, Acton, MA 01720. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 20898 | MA | Dentist primary |
| 18088 | MA | Dentist |
| 012231 | MA | Dentist |
| 20554 | MA | Endodontics |
| 18342 | MA | Periodontics |
This provider holds licence 20898 issued in MA. 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 Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 122300000X | Dentist | 20898 | MA | primary |
| 122300000X | Dentist | 18088 | MA | |
| 122300000X | Dentist | 012231 | MA | |
| 1223E0200X | Endodontics Endodontics | 20554 | MA | |
| 1223P0300X | Periodontics Periodontics | 18342 | MA |
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 | 1821133166 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Feb 21, 2007 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Practice address |
179 GREAT RD SUITE 204 Acton, MA 01720 (978) 263-3526 Fax (978) 263-5888 |
| Other identifiers |
515605
· Other (PA) X10924 · Other (MA) |
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 | 8 | 2 | 1 | 1 | 3 | 3 | 1 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 4 | 1 | 2 | 3 | 6 | 1 | 3 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.