Quick answers
- Which hospitals does Leonid G. Karpenos work at?
- Medicare's official clinician data lists Leonid G. Karpenos at 5 hospitals: Bridgeport Hospital, Danbury Hospital, Greenwich Hospital Association -, Norwalk Hospital and Stamford Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Leonid G. Karpenos see patients?
- Medicare's clinician data lists 2 practice locations, including Westport, CT. Call before your visit to confirm the address.
- What is Leonid G. Karpenos's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Leonid G. Karpenos accept Medicare assignment?
- Yes. Medicare's clinician data says Leonid G. Karpenos 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.
- Does Leonid G. Karpenos offer telehealth?
- Medicare's clinician data says Leonid G. Karpenos offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Leonid G. Karpenos?
- (203) 226-1760, as listed in official Medicare / NPI Registry data.
- What is Leonid G. Karpenos's NPI number?
- 1336267350. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Leonid G. Karpenos works
Medicare's Facility Affiliation Data lists Leonid G. Karpenos at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Bridgeport HospitalBridgeport, CT · Acute Care Hospital · CCN 070010
- Danbury HospitalDanbury, CT · Acute Care Hospital · CCN 070033
- Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · CCN 070018
- Norwalk HospitalNorwalk, CT · Acute Care Hospital · CCN 070034
- Stamford HospitalStamford, CT · Acute Care Hospital · CCN 070006
Practice locations
Addresses where Leonid G. Karpenos is enrolled with Medicare (CMS data updated 2026-10-02).
- 32 Imperial AveWestport, CT 06880 (203) 226‑1760
- 32 Imperial Ave, Fl 2Westport, CT 06880
Group practices
Medicare enrollment lists Leonid G. Karpenos as a member of this group (CMS data updated 2026-10-02).
- Westport Cardiology, LLC2 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Connecticut →
Other cardiologists in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1990 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1336267350 |
| 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