Quick answers
- Which hospitals does Howard A. Greller work at?
- Medicare's official clinician data lists Howard A. Greller at 1 hospital: The University Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Howard A. Greller see patients?
- Medicare's clinician data lists 1 practice location in Newark, NJ. Call before your visit to confirm the address.
- What is Howard A. Greller's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Addiction Medicine and Medical Toxicology.
- Does Howard A. Greller accept Medicare assignment?
- Yes. Medicare's clinician data says Howard A. Greller 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 Howard A. Greller?
- (973) 972-0037, as listed in official Medicare / NPI Registry data.
- What is Howard A. Greller's NPI number?
- 1376631085. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Howard A. Greller works
Medicare's Facility Affiliation Data lists Howard A. Greller at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- The University HospitalNewark, NJ · Acute Care Hospital · CCN 310119
Practice locations
Addresses where Howard A. Greller is enrolled with Medicare (CMS data updated 2026-10-02).
- 30 Bergen StNewark, NJ 07107 (973) 972‑0037
Group practices
Medicare enrollment lists Howard A. Greller as a member of this group (CMS data updated 2026-10-02).
- University Physician Associates of New Jersey Inc378 clinicians in the group
Specialties
- Emergency Medicineprimary
- Addiction Medicinealso
- Medical Toxicologyalso
Other emergency medicine doctors in Newark
Clinicians with the same Medicare primary specialty in Newark, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York University School Of Medicine |
| Graduation year | 1998 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1376631085 |
| 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