Quick answers
- Which hospitals does William K. Haussner work at?
- Medicare's official clinician data lists William K. Haussner at 1 hospital: Hackensack University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does William K. Haussner see patients?
- Medicare's clinician data lists 1 practice location in Hackensack, NJ. Call before your visit to confirm the address.
- What is William K. Haussner's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does William K. Haussner accept Medicare assignment?
- Yes. Medicare's clinician data says William K. Haussner 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 William K. Haussner?
- (551) 996-1288, as listed in official Medicare / NPI Registry data.
- What is William K. Haussner's NPI number?
- 1285195156. 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 K. Haussner works
Medicare's Facility Affiliation Data lists William K. Haussner at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hackensack University Medical CenterHackensack, NJ · Acute Care Hospital · CCN 310001
Practice locations
Addresses where William K. Haussner is enrolled with Medicare (CMS data updated 2026-10-02).
- 30 Prospect AveHackensack, NJ 07601 (551) 996‑1288
Group practices
Medicare enrollment lists William K. Haussner as a member of this group (CMS data updated 2026-10-02).
- Hackensack Meridian Health Medical Group - Specialty Care PC1,922 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Hackensack
Clinicians with the same Medicare primary specialty in Hackensack, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers R W Johnson Medical School (cam/new Bruns/pisc) |
| Graduation year | 2019 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1285195156 |
| 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