Quick answers
- Which hospitals does Gregory L. Primus work at?
- Medicare's official clinician data lists Gregory L. Primus at 5 hospitals: Advocate Christ Hospital & Medical Center, Advocate Trinity Hospital, Franciscan Health Olympia & Chicago Heights, Ingalls Memorial Hospital and Insight Hospital and Medical Center Chicago. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory L. Primus see patients?
- Medicare's clinician data lists 1 practice location in Tinley Park, IL. Call before your visit to confirm the address.
- What is Gregory L. Primus's specialty?
- Medicare lists Orthopedic Surgery as the primary specialty, and also Sports Medicine.
- Does Gregory L. Primus accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory L. Primus 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 Gregory L. Primus?
- (708) 263-2000, as listed in official Medicare / NPI Registry data.
- What is Gregory L. Primus's NPI number?
- 1295937555. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Gregory L. Primus works
Medicare's Facility Affiliation Data lists Gregory L. Primus at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Christ Hospital & Medical CenterOak Lawn, IL · Acute Care Hospital · CCN 140208
- Advocate Trinity HospitalChicago, IL · Acute Care Hospital · CCN 140048
- Franciscan Health Olympia & Chicago HeightsOlympia Fields, IL · Acute Care Hospital · CCN 140172
- Ingalls Memorial HospitalHarvey, IL · Acute Care Hospital · CCN 140191
- Insight Hospital and Medical Center ChicagoChicago, IL · Acute Care Hospital · CCN 140158
Practice locations
Addresses where Gregory L. Primus is enrolled with Medicare (CMS data updated 2026-10-02).
- 7543 183rd StTinley Park, IL 60477 (708) 263‑2000
Group practices
Medicare enrollment lists Gregory L. Primus as a member of this group (CMS data updated 2026-10-02).
- Primus Orthopedics SC2 clinicians in the group
Specialties
- Orthopedic Surgeryprimary
- Sports Medicinealso
Other orthopedic surgeons in Tinley Park
Clinicians with the same Medicare primary specialty in Tinley Park, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1295937555 |
| 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