WENDY L FOSTER MD
NPI 1396703070
Internal Medicine in River Forest, IL
About Wendy L Foster Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WENDY L FOSTER MD (NPI 1396703070) is an individual internal medicine provider in River Forest, Illinois, licensed in Illinois (036078115) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Wendy L Foster Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Wendy Foster reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Park, IL 60301
- Reassigned Medicare billing, Illinois enrollment
- 7 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60305 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
RIVER FOREST, IL 60305
RIVER FOREST, IL 60305
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 Wendy Foster's NPI number?
The NPI number for Wendy Foster is 1396703070. It was assigned to this individual provider in the NPPES registry on May 3, 2006.
Where is Wendy Foster located?
Wendy Foster practices at 7411 Lake St Ste L-120, River Forest, IL 60305. The listed phone number is (708) 488-1919.
What is Wendy Foster's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Wendy Foster enrolled in Medicare?
Yes. Wendy Foster is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Wendy Foster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Wendy Foster reassigns Medicare benefits to Rush Oak Park Physicians Group Lake Street (Oak Park, 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 Wendy Foster's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Wendy Foster was last updated on December 18, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.