Quick answers
- Which hospitals does Constantinos A. Costeas work at?
- Medicare's official clinician data lists Constantinos A. Costeas at 5 hospitals: Clara Maass Medical Center, Cooperman Barnabas Medical Center, Jersey City Medical Center, Saint Michael's Medical Center and Trinitas Regional Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Constantinos A. Costeas see patients?
- Medicare's clinician data lists 14 practice locations, including Belleville, NJ, Livingston, NJ and Elizabeth, NJ. Call before your visit to confirm the address.
- What is Constantinos A. Costeas's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Cardiac Electrophysiology.
- Does Constantinos A. Costeas accept Medicare assignment?
- Yes. Medicare's clinician data says Constantinos A. Costeas 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. Costeas?
- (973) 450-2000, as listed in official Medicare / NPI Registry data.
- What is Constantinos A. Costeas's NPI number?
- 1255331849. 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. Costeas works
Medicare's Facility Affiliation Data lists Constantinos A. Costeas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Clara Maass Medical CenterBelleville, NJ · Acute Care Hospital · CCN 310009
- Cooperman Barnabas Medical CenterLivingston, NJ · Acute Care Hospital · CCN 310076
- Jersey City Medical CenterJersey City, NJ · Acute Care Hospital · CCN 310074
- Saint Michael's Medical CenterNewark, NJ · Acute Care Hospital · CCN 310096
- Trinitas Regional Medical CenterElizabeth, NJ · Acute Care Hospital · CCN 310027
Practice locations
Addresses where Constantinos A. Costeas is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 14; the Medicare profile lists all.
- 1 Clara Maass DrBelleville, NJ 07109
- 1 Clara Maass Dr, Bldg CccBelleville, NJ 07109 (973) 450‑2000
- 200 S Orange AveLivingston, NJ 07039
- 225 Williamson StElizabeth, NJ 07202
- 225 Williamson St, Fl 1Elizabeth, NJ 07202 (908) 994‑5500
Group practices
Medicare enrollment lists Constantinos A. Costeas as a member of these groups (CMS data updated 2026-10-02).
- Barnabas Health Medical Group PC1,070 clinicians in the group
- St Michaels Cardiology Associates8 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Jersey →
Other cardiologists in Belleville
Clinicians with the same Medicare primary specialty in Belleville, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | State University Of New York At Stony Brook, School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255331849 |
| 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