Doctor profile · Federal record

Dr. Constantine Vlassopoulos, DDS

General Practice Dentistry (CMS: Dentist) · Kittery, ME

  • NPI 1861840472
  • 34 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
12 Newmarch St
Kittery, ME 039041619
(207) 305-9141
Additional location
50 Summer St
Millinocket, ME 044621400
(207) 538-3700
Mailing address
17 Kerasountos Street
Athens, AT 11528

Credentials & registration

NPPES · NUCC
NPI registered
May 2016 — 10 yrs on file
Profile last updated
February 27, 2026
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
1223G0001X — NUCC code
State license (1)
Maine #DEN4471

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861840472. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$112
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Envista Holdings Corporation 1 $62.50
Keystone Dental INC. 1 $49.27

By nature of payment

Food and Beverage
$63
Entertainment
$49

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
31
Patients
26
Total drug cost
$210
Drug Type Claims Patients Total cost
Amoxicillin Generic 16 11 $45
Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) Brand 15 15 $165

Frequently asked questions

Auto-generated from federal data
What is Dr. Constantine Vlassopoulos's medical specialty?
Dr. Constantine Vlassopoulos practices General Practice Dentistry in Kittery, ME.
Where does Dr. Constantine Vlassopoulos practice?
Dr. Constantine Vlassopoulos practices at 12 Newmarch St, Kittery, ME 039041619. Office phone: 2073059141.
What is Dr. Constantine Vlassopoulos's NPI?
Dr. Constantine Vlassopoulos's National Provider Identifier (NPI) is 1861840472, issued by NPPES.
Does Dr. Constantine Vlassopoulos accept Medicare assignment?
Dr. Constantine Vlassopoulos does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Jul 14, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›