Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Crystal Dawn Castle, NA

Behavior Technician in Glen Burnie, MD · enumerated 2025 · practices at Acorn Health of Maryland LLC.

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

National Provider Identifier

1669266391

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Registry record

Entity type Individual (Type 1)

Name Mrs. Crystal Dawn Castle

Credential NA

Sex Female

Practice address 890 Airport Park Rd Ste 100, Glen Burnie, MD, 21061

Phone (866) 805-7956

Enumeration date Apr 7, 2025

Last updated in NPPES Apr 10, 2025

Taxonomy & licenses

106S00000X Behavior Technician Behavioral Health & Social Service Providers 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 1669266391 active?

Yes, as of the latest NPPES snapshot, NPI 1669266391 is active (record last updated 2025-04-10).

How do I verify Crystal Castle's NPI record?

Cross-check NPI 1669266391 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 2025-04-10.