Quick answers
- Which hospitals does Constantinos A. Constantinou work at?
- Medicare's official clinician data lists Constantinos A. Constantinou at 5 hospitals: Day Kimball Hospital, Holyoke Medical Center, Johnson Memorial Hospital, Manchester Memorial Hospital and UMass Memorial Health - Harrington Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Constantinos A. Constantinou see patients?
- Medicare's clinician data lists 2 practice locations, including Holyoke, MA and Vernon, CT. Call before your visit to confirm the address.
- What is Constantinos A. Constantinou's specialty?
- Medicare lists Thoracic Surgery as the primary specialty.
- Does Constantinos A. Constantinou accept Medicare assignment?
- Yes. Medicare's clinician data says Constantinos A. Constantinou accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Constantinos A. Constantinou?
- (413) 535-4757, as listed in official Medicare / NPI Registry data.
- What is Constantinos A. Constantinou's NPI number?
- 1871551978. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Constantinos A. Constantinou works
Medicare's Facility Affiliation Data lists Constantinos A. Constantinou at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Day Kimball HospitalPutnam, CT · Acute Care Hospital · CCN 070003
- Holyoke Medical CenterHolyoke, MA · Acute Care Hospital · CCN 220024
- Johnson Memorial HospitalStafford Springs, CT · Acute Care Hospital · CCN 070008
- Manchester Memorial HospitalManchester, CT · Acute Care Hospital · CCN 070027
- UMass Memorial Health - Harrington HospitalSouthbridge, MA · Acute Care Hospital · CCN 220019
Practice locations
Addresses where Constantinos A. Constantinou is enrolled with Medicare (CMS data updated 2026-10-02).
- 11 Hospital Dr, Fl 3Holyoke, MA 01040 (413) 535‑4757
- 94 Union St, Suite AVernon, CT 06066 (860) 870‑1300
Group practices
Medicare enrollment lists Constantinos A. Constantinou as a member of this group (CMS data updated 2026-10-02).
- Holyoke Medical Center Inc205 clinicians in the group
Specialties
- Thoracic Surgeryprimary
Other thoracic surgeons in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1871551978 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians