DR. MICHAEL S KOREY M.D.
NPI 1497792410
Ophthalmology in Chicago, IL
About Dr. Michael S Korey M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MICHAEL S KOREY M.D. (NPI 1497792410) is an individual ophthalmology provider in Chicago, Illinois, licensed in Illinois (036055529) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Advocate Illinois Masonic Medical Center, and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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. Michael S Korey M.d. 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 Reassignment
Medicare enrollment records show Michael Korey reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Homewood, IL 60430
- Reassigned Medicare billing, Illinois enrollment
- 30 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 Illinois Masonic Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60641 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 7
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Michael Korey's NPI number?
The NPI number for Michael Korey is 1497792410. It was assigned to this individual provider in the NPPES registry on May 31, 2006.
Where is Michael Korey located?
Michael Korey practices at 3982 N Milwaukee Ave, Chicago, IL 60641. The listed phone number is (773) 282-2000.
What is Michael Korey's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Michael Korey enrolled in Medicare?
Yes. Michael Korey 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 organization bills Medicare for Michael Korey's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Korey reassigns Medicare benefits to Ocular Partners PLLC (Homewood, IL). The 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 Michael Korey's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Michael Korey affiliated with any hospitals?
According to CMS data, Michael Korey is affiliated with Advocate Illinois Masonic Medical Center.
When was this NPI record last updated?
The NPPES record for Michael Korey was last updated on October 16, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.