Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

MARY KATHRYN CLARK DNP, APRN, FNP-BC
NPI 1518889591
Nurse Practitioner - Family in Elmwood Park, IL

Active since July 29, 2026
1950 N HARLEM AVE, ELMWOOD PARK, IL 60707(708) 453-6800 Get Directions Write a Review

NPPES record added: July 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mary Kathryn Clark Dnp, Aprn, Fnp-bc NPPES

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

MARY KATHRYN CLARK DNP, APRN, FNP-BC (NPI 1518889591) is an individual family provider in Elmwood Park, Illinois, licensed in Illinois (209036201) and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1518889591
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMARY KATHRYN CLARKCredential: DNP, APRN, FNP-BC
Location Address1950 N HARLEM AVEElmwood Park, IL 60707-3717
Mailing Address9217 Marmora AveMorton Grove, IL 60053-1509
Sole ProprietorNo
Enumeration DateJuly 29, 2026
NPPES CertifiedJuly 29, 2026
NPI 1518889591 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License Licensed in IL · 209036201
1950 N HARLEM AVE, Elmwood Park, IL 60707

Other Providers at the Same Location NPPES 12

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

Internal Medicine
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Surgery (Vascular Surgery)
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Surgery
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Colon & Rectal Surgery
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Surgery
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Nurse Practitioner (Family)
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Surgery
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707
Surgery
1950 N HARLEM AVE
ELMWOOD PARK, IL 60707

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 Clark's NPI number?

The NPI number for Mary Clark is 1518889591. It was assigned to this individual provider in the NPPES registry on July 29, 2026.

Where is Mary Clark located?

Mary Clark practices at 1950 N Harlem Ave, Elmwood Park, IL 60707. The listed phone number is (708) 453-6800.

What is Mary Clark's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

When was this NPI record last updated?

The NPPES record for Mary Clark was last updated on July 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.