Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Darlene Mccastle, RN

Adult Psychiatric/Mental Health Registered Nurse in Ludington, MI · enumerated 2015.

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

National Provider Identifier

1861879967

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Registry record

Entity type Individual (Type 1)

Name Darlene Mccastle

Credential RN

Sex Female

Practice address 920 Diana St, Ludington, MI, 49431

Phone (231) 845-6294

Fax (231) 845-7095

Enumeration date Apr 28, 2015

Last updated in NPPES Apr 28, 2015

Taxonomy & licenses

163WP0809X Adult Psychiatric/Mental Health Registered Nurse Nursing Service Providers · License 4704193032 (MI) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1861879967 active?

Yes, as of the latest NPPES snapshot, NPI 1861879967 is active (record last updated 2015-04-28).

How do I verify Darlene Mccastle's NPI record?

Cross-check NPI 1861879967 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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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-04-28.