NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mary Elizabeth Mccusker, CRNP

Acute Care Nurse Practitioner in Philadelphia, PA · enumerated 2011.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1326338310

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mary Elizabeth Mccusker
Credential CRNP
Sex Female
Practice address 4220 Market St, 2nd Floor, Philadelphia, PA, 19104
Phone (215) 240-6007
Enumeration date Apr 12, 2011
Last updated in NPPES May 15, 2019

Taxonomy & licenses

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP011303 (PA) Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Mary Mccusker's NPI record?
Cross-check NPI 1326338310 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1326338310 active?
Yes, as of the latest NPPES snapshot, NPI 1326338310 is active (record last updated 2019-05-15).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-05-15.