Quick answers
- Where does Ellen Olek see patients?
- Medicare's clinician data lists 3 practice locations, including Lena, IL, Freeport, IL and Glenview, IL. Call before your visit to confirm the address.
- What is Ellen Olek's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Ellen Olek accept Medicare assignment?
- Yes. Medicare's clinician data says Ellen Olek 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 Ellen Olek?
- (815) 369-4561, as listed in official Medicare / NPI Registry data.
- What is Ellen Olek's NPI number?
- 1700309234. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Ellen Olek is enrolled with Medicare (CMS data updated 2026-10-02).
- 1010 S Logan StLena, IL 61048 (815) 369‑4561
- 2170 W Navajo DrFreeport, IL 61032 (815) 233‑2400
- 2600 Compass RdGlenview, IL 60026
Group practices
Medicare enrollment lists Ellen Olek as a member of these groups (CMS data updated 2026-10-02).
- Select Rehabilitation, LLC2,046 clinicians in the group
- Karefirst Illinois PC11 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1700309234 |
| 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
- 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