Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Margaret Eleen Corcoran, GNP

Gerontology Nurse Practitioner in Elkridge, MD · enumerated 2007.

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

National Provider Identifier

1720113327

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Registry record

Entity type Individual (Type 1)

Name Ms. Margaret Eleen Corcoran

Credential GNP

Sex Female

Practice address 6095 Marshalee Dr, Elkridge, MD, 21075

Phone (410) 375-3504

Fax (410) 379-3591

Enumeration date Feb 22, 2007

Last updated in NPPES Nov 16, 2010

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN108614 (MD) 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.

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Frequently asked questions

Where does Margaret Corcoran practice?

The practice location on file with NPPES is in Elkridge, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Margaret Corcoran?

The National Provider Identifier (NPI) for Margaret Corcoran is 1720113327, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-16.