Quick answers
- Which hospitals does John J. Callaghan work at?
- Medicare's official clinician data lists John J. Callaghan at 2 hospitals: Morristown Medical Center and St Joseph's University Medical Center Inc. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John J. Callaghan see patients?
- Medicare's clinician data lists 1 practice location in Wayne, NJ. Call before your visit to confirm the address.
- What is John J. Callaghan's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does John J. Callaghan accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Callaghan 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 J. Callaghan?
- (973) 970-5197, as listed in official Medicare / NPI Registry data.
- What is John J. Callaghan's NPI number?
- 1275842288. 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. Callaghan works
Medicare's Facility Affiliation Data lists John J. Callaghan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Morristown Medical CenterMorristown, NJ · Acute Care Hospital · CCN 310015
- St Joseph's University Medical Center IncPaterson, NJ · Acute Care Hospital · CCN 310019
Practice locations
Addresses where John J. Callaghan is enrolled with Medicare (CMS data updated 2026-10-02).
- 504 Valley Rd, Suite 201Wayne, NJ 07470 (973) 970‑5197
Group practices
Medicare enrollment lists John J. Callaghan as a member of this group (CMS data updated 2026-10-02).
- Academy Orthopaedic Group LLC10 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Wayne
Clinicians with the same Medicare primary specialty in Wayne, NJ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2009 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275842288 |
| 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