Quick answers
- Which hospitals does Mohammed J. Ansari work at?
- Medicare's official clinician data lists Mohammed J. Ansari at 5 hospitals: Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital, Northwestern Medicine Kishwaukee Hospital, Northwestern Memorial Hospital and Palos Community Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mohammed J. Ansari see patients?
- Medicare's clinician data lists 23 practice locations, including Oak Brook, IL, Chicago, IL and Bloomingdale, IL. Call before your visit to confirm the address.
- What is Mohammed J. Ansari's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Mohammed J. Ansari accept Medicare assignment?
- Yes. Medicare's clinician data says Mohammed J. Ansari 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.
- Does Mohammed J. Ansari offer telehealth?
- Medicare's clinician data says Mohammed J. Ansari offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mohammed J. Ansari?
- (630) 933-1500, as listed in official Medicare / NPI Registry data.
- What is Mohammed J. Ansari's NPI number?
- 1487688131. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mohammed J. Ansari works
Medicare's Facility Affiliation Data lists Mohammed J. Ansari at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Northwestern Lake Forest HospitalLake Forest, IL · Acute Care Hospital · CCN 140130
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · CCN 140242
- Northwestern Medicine Kishwaukee HospitalDekalb, IL · Acute Care Hospital · CCN 140286
- Northwestern Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · CCN 140062
Practice locations
Addresses where Mohammed J. Ansari is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 23; the Medicare profile lists all.
- 1001 Commerce DrOak Brook, IL 60523
- 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
- 1460 N Halsted St, Suite 504Chicago, IL 60642 (312) 926‑6146
Group practices
Medicare enrollment lists Mohammed J. Ansari as a member of this group (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1487688131 |
| 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