Quick answers
- Which hospitals does Carl J. Gustas Sr. work at?
- Medicare's official clinician data lists Carl J. Gustas Sr. at 1 hospital: Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Carl J. Gustas Sr. see patients?
- Medicare's clinician data lists 17 practice locations, including Chicago, IL, Evanston, IL and St Charles, IL. Call before your visit to confirm the address.
- What is Carl J. Gustas Sr.'s specialty?
- Medicare lists Family Practice as the primary specialty, and also Osteopathic Manipulative Medicine.
- Does Carl J. Gustas Sr. accept Medicare assignment?
- Yes. Medicare's clinician data says Carl J. Gustas Sr. 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 Carl J. Gustas Sr.?
- (630) 933-1500, as listed in official Medicare / NPI Registry data.
- What is Carl J. Gustas Sr.'s NPI number?
- 1194773036. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Carl J. Gustas Sr. works
Medicare's Facility Affiliation Data lists Carl J. Gustas Sr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
Practice locations
Addresses where Carl J. Gustas Sr. is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 17; the Medicare profile lists all.
- 1135 S Delano Ct EChicago, IL 60605 (630) 933‑1500
- 1135 W Delano Ct, A201Chicago, IL 60605 (312) 695‑0665
- 1333 W Belmont AveChicago, IL 60657
- 1630 Sherman AveEvanston, IL 60201
- 171 N Aberdeen St, Suite 100Chicago, IL 60607 (312) 926‑4150
Group practices
Medicare enrollment lists Carl J. Gustas Sr. as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
Other family doctors in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1194773036 |
| 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