Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mrs. Catherine Longshore Mccormack, APRN, RN

Psychiatric/Mental Health Nurse Practitioner in Hilton Head Island, SC · enumerated 2008 · practices at Longshore Psychiatric Mental Health Services LLC.

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

National Provider Identifier

1871744607

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Registry record

Entity type Individual (Type 1)

Name Mrs. Catherine Longshore Mccormack

Credential APRN, RN

Sex Female

Practice address Hilton Head Island, SC, 29926

Phone (803) 290-1898

Fax (859) 575-2775

Enumeration date Oct 10, 2008

Last updated in NPPES May 7, 2026

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 27925 (SC) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 27925 (SC) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

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

Is NPI 1871744607 active?

Yes, as of the latest NPPES snapshot, NPI 1871744607 is active (record last updated 2026-05-07).

How do I verify Catherine Mccormack's NPI record?

Cross-check NPI 1871744607 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Longshore Psychiatric Mental Health Services LLC Psychiatric/Mental Health Nurse Practitioner · Hilton Head Island, SC NPI 1689544512

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