DR. EUGENE C CONSTANTINOU (MD) – Internal Medicine Physician, NPI 1265434526

DR. EUGENE C CONSTANTINOU (MD) is a healthcare provider. based in Newington, Connecticut. specializing in INTERNAL MEDICINE. They hold the professional credentials MD. They hold a License No. 039689 (CT). The NPI Number for DR. EUGENE C CONSTANTINOU (MD) is 1265434526

Main info

Male
30 Years Of Experience
Accepts Medicare Assignment
Name
DR. EUGENE C CONSTANTINOU (MD)
NPI
1265434526
Phone
(866) 808-7921
Address
555 WILLARD AVE
Enumeration Date
1 June 2005
Last Update Date
6 June 2014

Doctor Profile

Medical School Name
BOSTON UNIVERSITY SCHOOL OF MEDICINE
Secondary Phone
-
Graduation Year
1996 (30 years ago)
PAC ID
4385534114
Group Practice PAC ID
0648247403
Professional Enrollment ID
I20040317000071
Address ID
CT060701980SI75XXXRDXX400
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:21State licenses:1Digital endpointsOther names

3,448 INTERNAL MEDICINE in CT

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Provider Addresses for DR. EUGENE C CONSTANTINOU (MD)

  • Veterans Affairs Connecticut Healthcare System Newington Campus, 555, Willard Avenue, Newington Junction, Newington, Hartford County, Connecticut, 06111, United States

    DEPT OF VETERANS AFFAIRS

    NEWINGTON, CT 061112631

    Phone: (866) 808-7921

    Fax: (860) 667-6875

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2014-07-16

PECOS data refreshed: 2026-05-27

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 06111)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 0648247403View full group profile
NameSpecialtyState
Internal MedicineCT
Orthopedic SurgeryMA
O T O L A R Y N G O L O G YCT
Orthopedic SurgeryCT
Cardiovascular Disease (Cardiology)CT
Nurse PractitionerCT
Geriatric Medicine, Family PracticeCT
Orthopedic SurgeryCT
Family PracticeCT
Family PracticeNC

Reviews

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Frequently asked questions

What is the registry number for DR. EUGENE C CONSTANTINOU (MD)?
The registry entry for DR. EUGENE C CONSTANTINOU (MD) shows NPI 1265434526.
Is DR. EUGENE C CONSTANTINOU (MD) currently accepting referrals based on NPI status?
Registry metadata lists DR. EUGENE C CONSTANTINOU (MD) as active.
How should patients interpret DR. EUGENE C CONSTANTINOU (MD)'s specialty?
The extract shows Internal Medicine Physician for DR. EUGENE C CONSTANTINOU (MD). Clinical services aligned with this taxonomy classification.
Which community is linked to DR. EUGENE C CONSTANTINOU (MD)?
DR. EUGENE C CONSTANTINOU (MD) shows a connection to Newington, Connecticut in registry-derived data.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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