NPI Portal NPI Lookup & Verification

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

Caleb Darling

Counselor in Williamstown, WV · enumerated 2021.

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

National Provider Identifier

1215521547

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Registry record

Entity type Individual (Type 1)
Name Caleb Darling
Sex Male
Practice address Williamstown, WV, 26187
Phone (304) 375-8800
Fax (304) 375-8801
Enumeration date Feb 26, 2021
Last updated in NPPES Nov 12, 2024

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

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers Secondary
101Y00000X Counselor Behavioral Health & Social Service Providers · License 3031 (WV) 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

Is NPI 1215521547 active?
Yes, as of the latest NPPES snapshot, NPI 1215521547 is active (record last updated 2024-11-12).
How do I verify Caleb Darling's NPI record?
Cross-check NPI 1215521547 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 2024-11-12.