Quick answers
- Which hospitals does Lisa Nijm work at?
- Medicare's official clinician data lists Lisa Nijm at 1 hospital: Northwestern Medicine Central Dupage Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Lisa Nijm see patients?
- Medicare's clinician data lists 1 practice location in Warrenville, IL. Call before your visit to confirm the address.
- What is Lisa Nijm's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Lisa Nijm accept Medicare assignment?
- Yes. Medicare's clinician data says Lisa Nijm 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 Lisa Nijm?
- (630) 393-7100, as listed in official Medicare / NPI Registry data.
- What is Lisa Nijm's NPI number?
- 1427260975. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Lisa Nijm works
Medicare's Facility Affiliation Data lists Lisa Nijm at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
Practice locations
Addresses where Lisa Nijm is enrolled with Medicare (CMS data updated 2026-10-02).
- 2s631 State Route 59, Suite AWarrenville, IL 60555 (630) 393‑7100
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Southern Illinois University School Of Medicine |
| Graduation year | 2004 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427260975 |
| 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