Quick answers
- Which hospitals does Sameer A. Ansari work at?
- Medicare's official clinician data lists Sameer A. Ansari at 2 hospitals: Northwestern Lake Forest Hospital and Northwestern Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sameer A. Ansari see patients?
- Medicare's clinician data lists 10 practice locations, including Naperville, IL, Chicago, IL and Evanston, IL. Call before your visit to confirm the address.
- What is Sameer A. Ansari's specialty?
- Medicare lists Interventional Radiology as the primary specialty, and also Diagnostic Radiology, Neurology and Pediatric Medicine.
- Does Sameer A. Ansari accept Medicare assignment?
- Yes. Medicare's clinician data says Sameer A. 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 Sameer A. Ansari offer telehealth?
- Medicare's clinician data says Sameer A. Ansari offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Sameer A. Ansari?
- (630) 646-6020, as listed in official Medicare / NPI Registry data.
- What is Sameer A. Ansari's NPI number?
- 1932214152. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sameer A. Ansari works
Medicare's Facility Affiliation Data lists Sameer A. 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 Memorial HospitalChicago, IL · Acute Care Hospital · CCN 140281
Practice locations
Addresses where Sameer A. Ansari is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 10; the Medicare profile lists all.
- 120 Spalding Dr, Suite 205and207Naperville, IL 60540 (630) 646‑6020
- 250 E Superior, 2304 Nwmff Prent Wmn HospChicago, IL 60611 (312) 472‑3660
- 250 E Superior StChicago, IL 60611
- 251 E HuronChicago, IL 60611
- 251 E Huron StChicago, IL 60611
Group practices
Medicare enrollment lists Sameer A. Ansari as a member of these groups (CMS data updated 2026-10-02).
- Northwestern Medical Faculty Foundation4,503 clinicians in the group
- Endeavor Health Medical Group3,350 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
- Neurologyalso
- Pediatric Medicinealso
Other interventional radiologists in Illinois
Clinicians with the same Medicare primary specialty in Illinois — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 2000 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1932214152 |
| 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