Quick answers
- Which hospitals does Erwin Mermelstein work at?
- Medicare's official clinician data lists Erwin Mermelstein at 2 hospitals: Centrastate Medical Center and Saint Peter's University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Erwin Mermelstein see patients?
- Medicare's clinician data lists 4 practice locations, including Linden, NJ, West Orange, NJ and East Brunswick, NJ. Call before your visit to confirm the address.
- What is Erwin Mermelstein's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Erwin Mermelstein accept Medicare assignment?
- Yes. Medicare's clinician data says Erwin Mermelstein 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 Erwin Mermelstein?
- (908) 925-2273, as listed in official Medicare / NPI Registry data.
- What is Erwin Mermelstein's NPI number?
- 1538102843. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Erwin Mermelstein works
Medicare's Facility Affiliation Data lists Erwin Mermelstein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Centrastate Medical CenterFreehold, NJ · Acute Care Hospital · CCN 310111
- Saint Peter's University HospitalNew Brunswick, NJ · Acute Care Hospital · CCN 310070
Practice locations
Addresses where Erwin Mermelstein is enrolled with Medicare (CMS data updated 2026-10-02).
- 328 W Saint Georges AveLinden, NJ 07036
- 328 W Saint Georges Ave, Rwjma/care StationLinden, NJ 07036 (908) 925‑2273
- 456 Prospect AveWest Orange, NJ 07052 (973) 731‑6767
- 593 Cranbury Rd, Suite 2East Brunswick, NJ 08816 (732) 390‑3333
Group practices
Medicare enrollment lists Erwin Mermelstein as a member of these groups (CMS data updated 2026-10-02).
- Robert Wood Johnson Physician Enterprise75 clinicians in the group
- Robert Wood Johnson Medical Associates at Hamilton PA44 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in New Jersey →
Other cardiologists in Linden
Clinicians with the same Medicare primary specialty in Linden, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1538102843 |
| 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