Quick answers
- Which hospitals does Catherine E. Aler work at?
- Medicare's official clinician data lists Catherine E. Aler at 1 hospital: Edward Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Catherine E. Aler see patients?
- Medicare's clinician data lists 3 practice locations, including Evanston, IL and Naperville, IL. Call before your visit to confirm the address.
- What is Catherine E. Aler's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Catherine E. Aler accept Medicare assignment?
- Yes. Medicare's clinician data says Catherine E. Aler 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 Catherine E. Aler?
- (630) 527-5197, as listed in official Medicare / NPI Registry data.
- What is Catherine E. Aler's NPI number?
- 1134584964. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Catherine E. Aler works
Medicare's Facility Affiliation Data lists Catherine E. Aler at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Edward HospitalNaperville, IL · Acute Care Hospital · CCN 140231
Practice locations
Addresses where Catherine E. Aler is enrolled with Medicare (CMS data updated 2026-10-02).
- 2650 Ridge AveEvanston, IL 60201
- 801 S Washington StNaperville, IL 60540 (630) 527‑5197
- 801 S Washington St, Fl 3Naperville, IL 60540 (630) 527‑5359
Group practices
Medicare enrollment lists Catherine E. Aler as a member of this group (CMS data updated 2026-10-02).
- Endeavor Health Medical Group3,350 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Evanston
Clinicians with the same Medicare primary specialty in Evanston, IL — not a recommendation.
Clinician information
| Graduation year | 2004 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1134584964 |
| 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