Quick answers
- Which hospitals does Robert M. Mazziotta work at?
- Medicare's official clinician data lists Robert M. Mazziotta at 4 hospitals: Hackensack Meridian Health Pascack Valley Medical, Hackensack University Medical Center, St Joseph's University Medical Center Inc and Valley Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Robert M. Mazziotta see patients?
- Medicare's clinician data lists 1 practice location in Ridgewood, NJ. Call before your visit to confirm the address.
- What is Robert M. Mazziotta's specialty?
- Medicare lists Pathology as the primary specialty.
- Does Robert M. Mazziotta accept Medicare assignment?
- Yes. Medicare's clinician data says Robert M. Mazziotta 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 Robert M. Mazziotta?
- (201) 447-8242, as listed in official Medicare / NPI Registry data.
- What is Robert M. Mazziotta's NPI number?
- 1679635007. 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. Mazziotta works
Medicare's Facility Affiliation Data lists Robert M. Mazziotta at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hackensack Meridian Health Pascack Valley MedicalWestwood, NJ · Acute Care Hospital · CCN 310130
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · CCN 310001
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · CCN 310019
- Valley HospitalParamus, NJ · Acute Care Hospital · CCN 310012
Practice locations
Addresses where Robert M. Mazziotta is enrolled with Medicare (CMS data updated 2026-10-02).
- 223 N Van Dien AveRidgewood, NJ 07450 (201) 447‑8242
Group practices
Medicare enrollment lists Robert M. Mazziotta as a member of this group (CMS data updated 2026-10-02).
- Ridgewood Pathology Group, PA7 clinicians in the group
Specialties
- Pathologyprimary
Other pathologists in Ridgewood
Clinicians with the same Medicare primary specialty in Ridgewood, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1679635007 |
| 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