Quick answers
- Which hospitals does Mario Masrur work at?
- Medicare's official clinician data lists Mario Masrur at 2 hospitals: OSF Little Company of Mary Medical Center and University of Illinois Hospital and Clinics. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Mario Masrur see patients?
- Medicare's clinician data lists 6 practice locations, including Chicago, IL, Evergreen, IL and Peoria, IL. Call before your visit to confirm the address.
- What is Mario Masrur's specialty?
- Medicare lists General Surgery as the primary specialty.
- Does Mario Masrur accept Medicare assignment?
- Yes. Medicare's clinician data says Mario Masrur 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 Mario Masrur offer telehealth?
- Medicare's clinician data says Mario Masrur offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Mario Masrur?
- (312) 996-6590, as listed in official Medicare / NPI Registry data.
- What is Mario Masrur's NPI number?
- 1811254568. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Mario Masrur works
Medicare's Facility Affiliation Data lists Mario Masrur at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- OSF Little Company of Mary Medical CenterEvergreen Park, IL · Acute Care Hospital · CCN 140179
- University of Illinois Hospital and ClinicsChicago, IL · Acute Care Hospital · CCN 140150
Practice locations
Addresses where Mario Masrur is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1740 W Taylor StChicago, IL 60612
- 1801 W Taylor StChicago, IL 60612
- 1855 W Taylor StChicago, IL 60612 (312) 996‑6590
- 1855 W Taylor St, Mc648Chicago, IL 60612 (312) 996‑6590
- 2800 W 95th StEvergreen, IL 60805 (708) 499‑2070
Group practices
Medicare enrollment lists Mario Masrur as a member of these groups (CMS data updated 2026-10-02).
- OSF Multi-Specialty Group2,114 clinicians in the group
- The Board of Trustees of the University of Illinois1,150 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Chicago
Clinicians with the same Medicare primary specialty in Chicago, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1811254568 |
| 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