Quick answers
- Which hospitals does Omar M. Hassan work at?
- Medicare's official clinician data lists Omar M. Hassan at 1 hospital: Advocate Sherman Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Omar M. Hassan see patients?
- Medicare's clinician data lists 4 practice locations, including Lombard, IL, Arlington Heights, IL and West Dundee, IL. Call before your visit to confirm the address.
- What is Omar M. Hassan's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Omar M. Hassan accept Medicare assignment?
- Medicare's clinician data says Omar M. Hassan may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Omar M. Hassan?
- (630) 424-9877, as listed in official Medicare / NPI Registry data.
- What is Omar M. Hassan's NPI number?
- 1366820441. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Omar M. Hassan works
Medicare's Facility Affiliation Data lists Omar M. Hassan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Advocate Sherman HospitalElgin, IL · Acute Care Hospital · CCN 140030
Practice locations
Addresses where Omar M. Hassan is enrolled with Medicare (CMS data updated 2026-10-02).
- 130 S Main St, Suite 303Lombard, IL 60148 (630) 424‑9877
- 3438 N Old Arlington Heights RdArlington Heights, IL 60004 (847) 551‑0049
- 650 Spring Hill Ring Rd, Suite 2020West Dundee, IL 60118
- 730 E Terra Cotta Ave, Suite B2Crystal Lake, IL 60014
Group practices
Medicare enrollment lists Omar M. Hassan as a member of these groups (CMS data updated 2026-10-02).
- Retina Institute of Illinois PC9 clinicians in the group
- Simpson Eye Physicians and Surgeons PLLC5 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Lombard
Clinicians with the same Medicare primary specialty in Lombard, IL — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Illinois College Of Med (chi/peor/rock/chm-Urb) |
| Graduation year | 2015 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1366820441 |
| 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