Quick answers
- Which hospitals does Robert M. Greenberg work at?
- Medicare's official clinician data lists Robert M. Greenberg at 1 hospital: Clara Maass Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert M. Greenberg see patients?
- Medicare's clinician data lists 3 practice locations, including Belleville, NJ, Livingston, NJ and West Long Branch, NJ. Call before your visit to confirm the address.
- What is Robert M. Greenberg's specialty?
- Medicare lists Geriatric Psychiatry as the primary specialty, and also Psychiatry.
- Does Robert M. Greenberg accept Medicare assignment?
- Yes. Medicare's clinician data says Robert M. Greenberg 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 Robert M. Greenberg offer telehealth?
- Medicare's clinician data says Robert M. Greenberg offers telehealth services. Ask the office which visits can be done by video or phone.
- What is Robert M. Greenberg's NPI number?
- 1912079070. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Robert M. Greenberg works
Medicare's Facility Affiliation Data lists Robert M. Greenberg 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
Practice locations
Addresses where Robert M. Greenberg is enrolled with Medicare (CMS data updated 2026-10-02).
- 1 Clara Maass DrBelleville, NJ 07109
- 200 S Orange AveLivingston, NJ 07039
- 223 Monmouth RdWest Long Branch, NJ 07764
Group practices
Medicare enrollment lists Robert M. Greenberg as a member of this group (CMS data updated 2026-10-02).
- Barnabas Health Medical Group, PC262 clinicians in the group
Specialties
- Geriatric Psychiatryprimary
- Psychiatryalso
Other geriatric psychiatrists in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Icahn School Of Medicine At Mount Sinai |
| Graduation year | 1978 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1912079070 |
| 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