Quick answers
- Which hospitals does John J. Knightly work at?
- Medicare's official clinician data lists John J. Knightly at 5 hospitals: Hunterdon Medical Center, Morristown Medical Center, Newton Medical Center, Overlook Medical Center and Robert Wood Johnson University Hospital - Somerset…. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Knightly see patients?
- Medicare's clinician data lists 1 practice location in Cedar Knolls, NJ. Call before your visit to confirm the address.
- What is John J. Knightly's specialty?
- Medicare lists Neurosurgery as the primary specialty.
- Does John J. Knightly accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Knightly 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 John J. Knightly offer telehealth?
- Medicare's clinician data says John J. Knightly offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John J. Knightly?
- (862) 260-4265, as listed in official Medicare / NPI Registry data.
- What is John J. Knightly's NPI number?
- 1912964008. 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 J. Knightly works
Medicare's Facility Affiliation Data lists John J. Knightly at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Hunterdon Medical CenterFlemington, NJ · Acute Care Hospital · CCN 310005
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · CCN 310015
- Newton Medical CenterNewton, NJ · Acute Care Hospital · CCN 310028
- Overlook Medical CenterSummit, NJ · Acute Care Hospital · CCN 310051
- Robert Wood Johnson University Hospital - Somerset…Somerville, NJ · Acute Care Hospital · CCN 310048
Practice locations
Addresses where John J. Knightly is enrolled with Medicare (CMS data updated 2026-10-02).
- 197 Ridgedale Ave, Suite 225Cedar Knolls, NJ 07927 (862) 260‑4265
Group practices
Medicare enrollment lists John J. Knightly as a member of this group (CMS data updated 2026-10-02).
- Maxim Brain and Spine19 clinicians in the group
Specialties
- Neurosurgeryprimary
Other neurosurgeons in Cedar Knolls
Clinicians with the same Medicare primary specialty in Cedar Knolls, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Rutgers New Jersey Medical School |
| Graduation year | 1985 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1912964008 |
| 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