Quick answers
- Which hospitals does John R. Wittenborn work at?
- Medicare's official clinician data lists John R. Wittenborn at 1 hospital: Robert Wood Johnson University Hospital - Somerset…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John R. Wittenborn see patients?
- Medicare's clinician data lists 1 practice location in Hillsborough, NJ. Call before your visit to confirm the address.
- What is John R. Wittenborn's specialty?
- Medicare lists Neurology as the primary specialty, and also Sleep Medicine.
- Does John R. Wittenborn accept Medicare assignment?
- Yes. Medicare's clinician data says John R. Wittenborn 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 John R. Wittenborn?
- (908) 227-3056, as listed in official Medicare / NPI Registry data.
- What is John R. Wittenborn's NPI number?
- 1629145115. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John R. Wittenborn works
Medicare's Facility Affiliation Data lists John R. Wittenborn at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Robert Wood Johnson University Hospital - Somerset…Somerville, NJ · Acute Care Hospital · CCN 310048
Practice locations
Addresses where John R. Wittenborn is enrolled with Medicare (CMS data updated 2026-10-02).
- 103 Omni DrHillsborough, NJ 08844 (908) 227‑3056
Specialties
- Neurologyprimary
- Sleep Medicinealso
Other neurologists in New Jersey
Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Washington University School Of Medicine |
| Graduation year | 1973 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1629145115 |
| 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