PATRICK LAU MD
NPI 1184637639
Anesthesiology in Chicago, IL
About Patrick Lau Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICK LAU MD (NPI 1184637639) is an individual anesthesiology provider in Chicago, Illinois, licensed in Illinois (036090478) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Patrick Lau Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Patrick Lau reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60625
- Reassigned Medicare billing, Illinois enrollment
- 350 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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
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.
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60625
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 Patrick Lau's NPI number?
The NPI number for Patrick Lau is 1184637639. It was assigned to this individual provider in the NPPES registry on August 15, 2006.
Where is Patrick Lau located?
Patrick Lau practices at 5145 N California Ave, Chicago, IL 60625. The listed phone number is (773) 878-8200.
What is Patrick Lau's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Patrick Lau enrolled in Medicare?
Yes. Patrick Lau is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Patrick Lau's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Lau reassigns Medicare benefits to 2 organizations: Swedish Covenant Management Services, Inc (Chicago, IL) and Endeavor Health Medical Group (Evanston, 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 Patrick Lau'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 Patrick Lau was last updated on August 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.