DR. OMAR AIYASH
NPI 1295186492
Family Medicine in Aurora, IL
About Dr. Omar Aiyash NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. OMAR AIYASH (NPI 1295186492) is an individual family medicine provider in Aurora, Illinois, licensed in Illinois (036149059) and active in the NPI registry since June 2016. He is enrolled in Medicare PECOS, is affiliated with Copley Memorial Hospital, and is a graduate of Other (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 and accepts Medicare assignment
Dr. Omar Aiyash is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Omar Aiyash reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush-Copley Medical Group Nfp
- 171 clinicians in this Medicare group
Aurora, IL 60504
- Reassigned Medicare billing, Illinois enrollment
- 79 clinicians in this Medicare group
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 548 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.
Copley Memorial Hospital
Acute Care Hospitals · Aurora, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60504 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 17
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
AURORA, IL 60504
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 Aiyash's NPI number?
The NPI number for Omar Aiyash is 1295186492. It was assigned to this individual provider in the NPPES registry on June 29, 2016.
Where is Omar Aiyash located?
Omar Aiyash practices at 2020 Ogden Ave Ste 400, Aurora, IL 60504. The listed phone number is (630) 692-5563.
What is Omar Aiyash's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Omar Aiyash enrolled in Medicare?
Yes. Omar Aiyash is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Omar Aiyash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Omar Aiyash reassigns Medicare benefits to 4 organizations: Rush-Copley Medical Group (Aurora, IL), Copley Memorial Hospital, Inc. (Aurora, IL), Rush University Medical Center (Oak Brook, IL) and Rush Medical Group (Chicago, 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 Aiyash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Omar Aiyash accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Omar Aiyash 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 Aiyash affiliated with any hospitals?
According to CMS data, Omar Aiyash is affiliated with Copley Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Omar Aiyash was last updated on March 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.