Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MRS. MARY THERESA ELLEN LAU RN, MS, APN
NPI 1801839774
Clinical Nurse Specialist - Adult Health in Hines, IL

Q: What is Mary Theresa Lau's NPI number?

The NPI number for Mary Theresa Lau is 1801839774. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Q: What is Mary Theresa Lau's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Adult Health, with taxonomy code 364SA2200X.

Q: When was this NPI record last updated?

The NPPES record for Mary Theresa Lau was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.

Active since June 14, 2006

5TH AVENUE & ROOSEVELT RD, BLDG 200 RM 546 118S, HINES, IL 60141(708) 202-8387(708) 202-2180 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Mrs. Mary Theresa Ellen Lau Rn, Ms, Apn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. MARY THERESA ELLEN LAU RN, MS, APN (NPI 1801839774) is an individual adult health provider in Hines, Illinois and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1801839774

Entity TypeIndividualFemale

Primary Taxonomy364SA2200X

Provider Legal NameMRS. MARY THERESA ELLEN LAUCredential: RN, MS, APN

Location Address5TH AVENUE & ROOSEVELT RD, BLDG 200 RM 546 118SHines, IL 60141

Mailing Address1209 Frances PkwyPark Ridge, IL 60068-5129 · (847) 698-5971 · Fax (708) 202-2180

Phone(708) 202-8387

Fax(708) 202-2180

Sole ProprietorNo

Enumeration DateJune 14, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1801839774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinical Nurse Specialist · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code364SA2200X

5TH AVENUE & ROOSEVELT RD, Hines, IL 60141

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Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MR. JOSEPH S NECZEK M.S., R.K.T.

Kinesiotherapist

5TH AVENUE & ROOSEVELT RD
HINES, IL 60141

Cook County (708) 202-2654

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 Mary Theresa Lau's NPI number?

The NPI number for Mary Theresa Lau is 1801839774. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is Mary Theresa Lau located?

Mary Theresa Lau practices at 5th Avenue & Roosevelt Rd Bldg 200 Rm 546 118S, Hines, IL 60141. The listed phone number is (708) 202-8387.

What is Mary Theresa Lau's specialty?

The primary specialty registered for this NPI is Clinical Nurse Specialist, specializing in Adult Health, with taxonomy code 364SA2200X.

When was this NPI record last updated?

The NPPES record for Mary Theresa Lau was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 days 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.