DR. AVREY THAU MD
NPI 1164981916
Ophthalmology - Cornea and External Diseases Specialist in Chicago, IL
About Dr. Avrey Thau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AVREY THAU MD (NPI 1164981916) is an individual cornea and external diseases specialist in Chicago, Illinois, licensed in Illinois (036164051) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Northwestern Memorial Hospital, and maintains 4 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 4
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. Avrey Thau 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 Reassignment
Medicare enrollment records show Avrey Thau reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 5
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.
Northwestern Memorial Hospital
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.
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
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 Avrey Thau's NPI number?
The NPI number for Avrey Thau is 1164981916. It was assigned to this individual provider in the NPPES registry on March 19, 2019.
Where is Avrey Thau located?
Avrey Thau practices at 4445 W Irving Park Rd Ste 330, Chicago, IL 60641. The listed phone number is (312) 695-8150.
What is Avrey Thau's specialty?
The primary specialty registered for this NPI is Ophthalmology, specializing in Cornea and External Diseases Specialist, with taxonomy code 207WX0120X.
Is Avrey Thau enrolled in Medicare?
Yes. Avrey Thau 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 Avrey Thau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Avrey Thau reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Avrey Thau's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Avrey Thau affiliated with any hospitals?
According to CMS data, Avrey Thau is affiliated with Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Avrey Thau was last updated on September 22, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.