DR. IRENE I WU MD
NPI 1447457692
Surgery in Elgin, IL
About Dr. Irene I Wu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. IRENE I WU MD (NPI 1447457692) is an individual surgery provider in Elgin, Illinois, licensed in Illinois (036.118716) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Northwestern University Feinberg Medical School (2002).
NPPES Registry Identity
Specialties & Licenses
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. Irene I Wu Md 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
3Medicare enrollment records show Irene Wu reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Elgin, IL 60123
- Reassigned Medicare billing, Illinois enrollment
- 2 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 1,061 clinicians in this Medicare group
Downers Grove, IL 60515
- Reassigned Medicare billing, Illinois enrollment
- 4,870 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 13
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILNorthwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILPresence Saint Joseph Hospital - Elgin
Acute Care Hospitals · Elgin, ILAdvocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, ILAdvocate Good Shepherd Hospital
Acute Care Hospitals · Barrington, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60123 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
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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
ELGIN, IL 60123
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 Irene Wu's NPI number?
The NPI number for Irene Wu is 1447457692. It was assigned to this individual provider in the NPPES registry on June 29, 2007.
Where is Irene Wu located?
Irene Wu practices at 163 S Randall Rd, Elgin, IL 60123. The listed phone number is (847) 406-1007.
What is Irene Wu's specialty?
The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.
Is Irene Wu enrolled in Medicare?
Yes. Irene Wu 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 Irene Wu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Irene Wu reassigns Medicare benefits to 3 organizations: Advanced Surgery & Wellness, PLLC (Elgin, IL), Dupage Medical Group Ltd (Downers Grove, IL) and Advocate Health And Hospitals Corporation (Downers Grove, 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 Irene Wu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Irene Wu accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Irene Wu 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 Irene Wu affiliated with any hospitals?
According to CMS data, Irene Wu is affiliated with Advocate Sherman Hospital, Northwestern Medicine Delnor Community Hospital, Presence Saint Joseph Hospital - Elgin, Advocate Lutheran General Hospital and Advocate Good Shepherd Hospital.
When was this NPI record last updated?
The NPPES record for Irene Wu was last updated on May 12, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.