OMAR HASSAN MD
NPI 1366820441
Ophthalmology in Arlington Heights, IL
About Omar Hassan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OMAR HASSAN MD (NPI 1366820441) is an individual ophthalmology provider in Arlington Heights, Illinois, licensed in Illinois (036149417) and active in the NPI registry since May 2015. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (2015).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Omar Hassan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Omar Hassan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Arlington Heights, IL 60004
- Reassigned Medicare billing, Illinois enrollment
Niles, IL 60714
- Reassigned Medicare billing, Illinois enrollment
- 10 clinicians in this Medicare group
Chicago, IL 60631
- Reassigned Medicare billing, Illinois enrollment
- 3 clinicians in this Medicare group
West Dundee, IL 60118
- Reassigned Medicare billing, Illinois enrollment
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 15
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60004 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ARLINGTON HEIGHTS, IL 60004
ARLINGTON HEIGHTS, IL 60004
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Omar Hassan's NPI number?
The NPI number for Omar Hassan is 1366820441. It was assigned to this individual provider in the NPPES registry on May 11, 2015.
Where is Omar Hassan located?
Omar Hassan practices at 3438 N Old Arlington Heights Rd, Arlington Heights, IL 60004. The listed phone number is (847) 551-0049.
What is Omar Hassan's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Omar Hassan enrolled in Medicare?
Yes. Omar Hassan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Omar Hassan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Omar Hassan reassigns Medicare benefits to 4 organizations: Great Lakes Retina, PLLC (Arlington Heights, IL), Retina Institute Of Illinois PC (Niles, IL), Retina Services Of Illinois, LLC (Chicago, IL) and Simpson Eye Physicians & Surgeons PLLC (West Dundee, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Omar Hassan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Omar Hassan accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Omar Hassan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Omar Hassan affiliated with any hospitals?
According to CMS data, Omar Hassan is affiliated with Advocate Sherman Hospital.
When was this NPI record last updated?
The NPPES record for Omar Hassan was last updated on July 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.