ALEXANDER MALCOLM WU MD
NPI 1871533778
Family Medicine in Chicago, IL
About Alexander Malcolm Wu Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDER MALCOLM WU MD (NPI 1871533778) is an individual family medicine provider in Chicago, Illinois, licensed in Illinois (036095568) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alexander Malcolm Wu Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Alexander Wu reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 221 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- Also billed through NPI 1669493466 (Illinois)
- 2,127 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 2
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60639 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 3
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
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 Alexander Wu's NPI number?
The NPI number for Alexander Wu is 1871533778. It was assigned to this individual provider in the NPPES registry on June 8, 2006.
Where is Alexander Wu located?
Alexander Wu practices at 5359 W Fullerton, Chicago, IL 60639. The listed phone number is (773) 836-2785.
What is Alexander Wu's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Alexander Wu enrolled in Medicare?
Yes. Alexander Wu is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Alexander Wu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Wu reassigns Medicare benefits to 2 organizations: Pcc Community Wellness Center (Oak Park, IL) and The Board Of Trustees Of The University Of Illinois (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 Alexander Wu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Alexander Wu accept?
Health plans from Ambetter Health and Ambetter Health of Delaware list Alexander 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.
When was this NPI record last updated?
The NPPES record for Alexander Wu was last updated on October 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 months 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.