MARY KATHRYN CLARK DNP, APRN, FNP-BC
NPI 1518889591
Nurse Practitioner - Family in Elmwood Park, IL
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. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mary Kathryn Clark Dnp, Aprn, Fnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60707 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 12
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 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.
Is Mary Clark enrolled in Medicare?
Yes. Mary Clark is registered in the Medicare PECOS enrollment system.
What insurance does Mary Clark accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Mary Clark 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 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 3 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.
# Mary Kathryn Clark, DNP, APRN, FNP-BC · NPI 1518889591
Family physician in Elmwood Park, Illinois. Individual provider, active in the CMS NPPES registry since July 29, 2026.
## Identity
- **NPI:** 1518889591 (Entity type: Individual)
- **Enumerated:** July 29, 2026
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 209036201 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1950 N HARLEM AVE, Elmwood Park, IL 60707-3717
- **Phone:** (708) 453-6800
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
## Record status
- **NPPES last updated:** July 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1518889591) · Data from the CMS NPPES public registry.