Eugene C. Constantinou, MD
Internal Medicine Physician · Newington, CT
Eugene C. Constantinou, MD is an internal medicine physician with a practice address in Newington, Connecticut, and NPI 1265434526, issued on Jun 1, 2005. Check the license (Connecticut 039689, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Eugene C. Constantinou
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 039689 CT
Self-reported in NPPES; status is on the state search - Practice location
- 555 Willard Ave, Newington, CT 06111
- Phone
- (866) 808-7921
- Enumerated
- Jun 1, 2005
- Record last updated
- Jun 6, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (860) 667-6875
- Medicaid ID
- 001396896 CT
- Medicare enrollment
- Enrolled (PECOS I20040317000071); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 1996
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 555 Willard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Albert, M.D.Dermatology Physician1396842035
- Syed Ali, MDFamily Medicine Physician1508831256
- John AntonucciAddiction Medicine (Psychiatry & Neurology) Physician1508967951
- Joseph Apanowitch, LCSWClinical Social Worker1427302579
- Kim BarryMedical Technologist1487831632
- Michelle Beglane, RDRegistered Dietitian1285650309
Verify Eugene C. Constantinou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 039689Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
111 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Atorvastatin Calcium17 claims
- Metoprolol Succinate13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Mclean FundSimsbury, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Eugene C. Constantinou among 2,623 internal medicine physician records in Connecticut
Eugene C. Constantinou, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1996 · median 2004 among the 1,646 with a school on file
- Record last updated2014 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 internal medicine physician records list a practice address in Newington
They are 28 of the 722 NPPES records with a practice address in Newington, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Newington → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sanjay Barochia, M.D.Newington, CT 061111972520914
- Nadine Cartwright-Lowe, M.D.Newington, CT 061111760484513
- Patricia Cioffi, MDNewington, CT 061111720020597
- Donald Curran, M.D.Newington, CT 061111033111356
- Robert Dorman, M.D.Newington, CT 061111952326472
- Tatong Hemmaplardh, M.D.Newington, CT 061111669419552
- Shahnaz Hussain, M.D.Newington, CT 061111073519658
- Jeffrey Kagan, M.D.Newington, CT 061111003886193
Common questions
What is Eugene C. Constantinou, MD's NPI number?
Eugene C. Constantinou, MD's National Provider Identifier (NPI) is 1265434526, issued on Jun 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Eugene C. Constantinou, MD located?
The NPPES record lists a practice address at 555 Willard Ave, Newington, CT, 06111. Phone: (866) 808-7921. Providers update this record themselves, so call before visiting.
How can I verify Eugene C. Constantinou, MD's license?
NPPES lists Connecticut license number 039689, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eugene C. Constantinou, MD prescribe under Medicare Part D?
In 2024, Eugene C. Constantinou, MD had 111 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.