Quick answers
- Which hospitals does William J. Marion work at?
- Medicare's official clinician data lists William J. Marion at 1 hospital: Newton Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William J. Marion see patients?
- Medicare's clinician data lists 2 practice locations, including Vernon, NJ. Call before your visit to confirm the address.
- What is William J. Marion's specialty?
- Medicare lists Family Practice as the primary specialty, and also Osteopathic Manipulative Medicine.
- Does William J. Marion accept Medicare assignment?
- Medicare's clinician data says William J. Marion may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is William J. Marion's NPI number?
- 1346226115. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where William J. Marion works
Medicare's Facility Affiliation Data lists William J. Marion at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Newton Medical CenterNewton, NJ · Acute Care Hospital · CCN 310028
Practice locations
Addresses where William J. Marion is enrolled with Medicare (CMS data updated 2026-10-02).
- 426 Route 515Vernon, NJ 07462
- 426 State Rt, Suite 515Vernon, NJ 07462
Specialties
Other family doctors in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Western University Of Health Sciences College Of Dental Med |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1346226115 |
| 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