Quick answers
- Which hospitals does August D. Sigelko work at?
- Medicare's official clinician data lists August D. Sigelko at 1 hospital: Copley Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does August D. Sigelko see patients?
- Medicare's clinician data lists 4 practice locations, including Chicago, IL and Aurora, IL. Call before your visit to confirm the address.
- What is August D. Sigelko's specialty?
- Medicare lists Critical Care (Intensivists) as the primary specialty, and also Pulmonary Disease.
- Does August D. Sigelko accept Medicare assignment?
- Yes. Medicare's clinician data says August D. Sigelko 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 August D. Sigelko?
- (312) 563-2875, as listed in official Medicare / NPI Registry data.
- What is August D. Sigelko's NPI number?
- 1053815225. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where August D. Sigelko works
Medicare's Facility Affiliation Data lists August D. Sigelko at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Copley Memorial HospitalAurora, IL · Acute Care Hospital · CCN 140029
Practice locations
Addresses where August D. Sigelko is enrolled with Medicare (CMS data updated 2026-10-02).
- 1700 W Van Buren StChicago, IL 60612 (312) 563‑2875
- 2000 Ogden AveAurora, IL 60504 (312) 942‑6800
- 2000 Ogden Ave, Suite A1100Aurora, IL 60504 (630) 978‑6250
- 2040 Ogden AveAurora, IL 60504
Group practices
Medicare enrollment lists August D. Sigelko as a member of this group (CMS data updated 2026-10-02).
- Rush University Medical Group1,551 clinicians in the group
Specialties
Find other Critical Care (Intensivists) doctors in Illinois →
Other critical care doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1053815225 |
| 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