WALID MALKI MD
NPI 1225692064
Internal Medicine - Critical Care Medicine in Oak Lawn, IL
About Walid Malki Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WALID MALKI MD (NPI 1225692064) is an individual critical care medicine provider in Oak Lawn, Illinois, licensed in Illinois (036-157849) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Advocate Christ Hospital & Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 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
Walid Malki 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 Walid Malki reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- Also billed through NPI 1629441027 (Illinois)
- 4,870 clinicians in this Medicare group
Chicago, IL 60629
- Reassigned Medicare billing, Illinois enrollment
- 982 clinicians in this Medicare group
Chicago, IL 60634
- Reassigned Medicare billing, Illinois enrollment
- 174 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 4
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Christ Hospital & Medical Center
Acute Care Hospitals · Oak Lawn, ILCommunity First Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60453 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.
OAK LAWN, IL 60453
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 Walid Malki's NPI number?
The NPI number for Walid Malki is 1225692064. It was assigned to this individual provider in the NPPES registry on April 26, 2019.
Where is Walid Malki located?
Walid Malki practices at 4440 W 95th St, Oak Lawn, IL 60453. The listed phone number is (708) 283-5500.
What is Walid Malki's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Walid Malki enrolled in Medicare?
Yes. Walid Malki 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 Walid Malki's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Walid Malki reassigns Medicare benefits to 3 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL), Cepamerica Illinois LLP (Chicago, IL) and Community First Healthcare Of Illinois, Inc. (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 Walid Malki's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Walid Malki accept?
Health plans from Oscar Health list Walid Malki 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 Walid Malki affiliated with any hospitals?
According to CMS data, Walid Malki is affiliated with Advocate Christ Hospital & Medical Center and Community First Medical Center.
When was this NPI record last updated?
The NPPES record for Walid Malki was last updated on November 6, 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.