NPPES file of Aug 9, 2026

Constantinos A. Constantinou, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Vernon Rockville, CT

Constantinos A. Constantinou, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Vernon Rockville, Connecticut, and NPI 1871551978, issued on May 1, 2006. Check the license (Connecticut 043819, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1871551978
Name
Constantinos A. Constantinou
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
043819 CT
240098 MA
Self-reported in NPPES; status is on the state search
Practice location
94 Union St, Vernon Rockville, CT 06066
Phone
(860) 870-1300
Enumerated
May 1, 2006
Record last updated
Jul 21, 2022
Fax
(860) 870-1306
Medicaid ID
001438193 CT
Medicare enrollment
Enrolled (PECOS I20051216000075); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Verify Constantinos A. Constantinou in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 043819
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

18% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

83 Medicare Part D claims for 32 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. 21 claims were for opioids.

  1. Constantinos Constantinou83
  2. Specialty average101

Most prescribed

  1. Oxycodone Hcl18 claims
  2. Gabapentin17 claims
  3. Cyclobenzaprine Hcl14 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.

Industry payments in 2024: $22.96

1 payment: food and beverage; the largest payer was ImmunoGen, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Constantinos Constantinou$22.96
  2. Specialty average$7,828.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Constantinos A. Constantinou among 79 thoracic surgery (cardiothoracic vascular surgery) physician records in Connecticut

Constantinos A. Constantinou, MD is one of 79 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Connecticut. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.

  • NPI issued2006 · 19% of these records are older, 49% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1992 · median 1998 among the 48 with a school on file
  • Record last updated2022 · 57% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 thoracic surgery (cardiothoracic vascular surgery) physician record lists a practice address in Vernon Rockville

They are 1 of the 47 NPPES records with a practice address in Vernon Rockville, and 79 thoracic surgery (cardiothoracic vascular surgery) physician records in Connecticut.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Dina Al RameniFarmington, CT 060301841642931
  2. Daniel Fusco, M.D.Farmington, CT 060301245235936
  3. Fernando Garzia, MDFarmington, CT 060301306896360
  4. Stephen Lahey, M.D.Farmington, CT 060301518978873
  5. Chittoor Sai-Sudhakar, M.D.Farmington, CT 060301437106440
  6. Dustin Walters, MDFarmington, CT 060301114122405
  7. Jason Zakko, M.D.Hartford, CT 061021003201377
  8. Robert Gallagher, MDHartford, CT 061051801894829

Common questions

What is Constantinos A. Constantinou, MD's NPI number?

Constantinos A. Constantinou, MD's National Provider Identifier (NPI) is 1871551978, issued on May 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Constantinos A. Constantinou, MD located?

The NPPES record lists a practice address at 94 Union St, Vernon Rockville, CT, 06066. Phone: (860) 870-1300. Providers update this record themselves, so call before visiting.

How can I verify Constantinos A. Constantinou, MD's license?

NPPES lists Connecticut license number 043819, 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 Constantinos A. Constantinou, MD prescribe under Medicare Part D?

In 2024, Constantinos A. Constantinou, MD had 83 Medicare Part D claims for 32 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.