Dr. Constantine Vlassopoulos, DDS
Dr. Constantine Vlassopoulos is a General Practice Dentistry provider (Dentist) practicing in Kittery, ME, registered in the NPPES registry with NPI 1861840472 since 2016. The credential DDS stands for Doctor of Dental Surgery. Practices at Downeast Center for Restorative Dentistry (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1861840472 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Constantine Vlassopoulos |
| Credential | DDS |
| Sex | Male |
| Practice address | Kittery, ME, 03904 |
| Phone | 2073059141 |
| Enumeration date | 2016-05-25 |
| Last updated in NPPES | 2026-02-27 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223G0001X | General Practice Dentistry | Primary | DEN4471 | ME |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: Constantine Vlassopoulos, DDS NPI: 1861840472 Taxonomy: 1223G0001X (General Practice Dentistry) Address: Kittery, ME, 03904
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1649359746 | Mark Governo | Individual | General Practice Dentistry | Kittery, ME |
| 1003995192 | Brendan Hallissey | Individual | Dentist | Kittery, ME |
| 1346368065 | Stephen Swallow | Individual | General Practice Dentistry | Kittery, ME |
| 1073818217 | Jeffrey Graffam | Individual | Dentist | Kittery, ME |
| 1568709772 | Downeast Center for Restorative Dentistry | Organization | Dentist | Kittery, ME |
| 1699355461 | Ajisa Liti | Individual | General Practice Dentistry | Kittery, ME |
Verify this record
Cross-check NPI 1861840472 against the authoritative CMS record: view Dr. Constantine Vlassopoulos on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2026-02-27.