Quick answers
- Which hospitals does Gregory Porter work at?
- Medicare's official clinician data lists Gregory Porter at 2 hospitals: Advocate Sherman Hospital and Alexian Brothers Medical Center 1. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Gregory Porter see patients?
- Medicare's clinician data lists 2 practice locations, including Chicago Heights, IL and Elgin, IL. Call before your visit to confirm the address.
- What is Gregory Porter's specialty?
- Medicare lists Anesthesiology as the primary specialty, and also Pain Management.
- Does Gregory Porter accept Medicare assignment?
- Yes. Medicare's clinician data says Gregory Porter 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 Porter?
- (708) 756-1000, as listed in official Medicare / NPI Registry data.
- What is Gregory Porter's NPI number?
- 1548327323. 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 Porter works
Medicare's Facility Affiliation Data lists Gregory Porter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · CCN 140030
- Alexian Brothers Medical Center 1Elk Grove Village, IL · Acute Care Hospital · CCN 140258
Practice locations
Addresses where Gregory Porter is enrolled with Medicare (CMS data updated 2026-10-02).
- 1423 Chicago RdChicago Heights, IL 60411 (708) 756‑1000
- 1425 N Randall RdElgin, IL 60123 (847) 742‑9800
Group practices
Medicare enrollment lists Gregory Porter as a member of these groups (CMS data updated 2026-10-02).
- Advocate Health and Hospitals Corporation3,118 clinicians in the group
- Northstar Anesthesia of Illinois, LLC409 clinicians in the group
Specialties
- Anesthesiologyprimary
- Pain Managementalso
Other anesthesiologists in Chicago Heights
Clinicians with the same Medicare primary specialty in Chicago Heights, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1548327323 |
| 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