Quick answers
- Which hospitals does John A. Hefferon work at?
- Medicare's official clinician data lists John A. Hefferon at 3 hospitals: Northwestern Medicine Central Dupage Hospital, Northwestern Memorial Hospital and Palos Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John A. Hefferon see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago, IL. Call before your visit to confirm the address.
- What is John A. Hefferon's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty.
- Does John A. Hefferon accept Medicare assignment?
- Yes. Medicare's clinician data says John A. Hefferon 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 John A. Hefferon's NPI number?
- 1982677480. 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 A. Hefferon works
Medicare's Facility Affiliation Data lists John A. Hefferon at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · CCN 140062
Practice locations
Addresses where John A. Hefferon is enrolled with Medicare (CMS data updated 2026-10-02).
Group practices
Medicare enrollment lists John A. Hefferon as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
Other orthopedic surgeons in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1972 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1982677480 |
| 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