NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Castle Hearing Center, Inc

Audiologist in Frederick, MD · enumerated 2008 · authorized official Sandra Castle, President.

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

National Provider Identifier

1366610909

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Castle Hearing Center, Inc
Practice address 801 Toll House Ave, D 3, Frederick, MD, 21701
Fax (301) 846-7707
Enumeration date Feb 18, 2008
Last updated in NPPES Feb 18, 2008

Taxonomy & classification

231H00000X Audiologist Speech, Language and Hearing Service Providers · License 123 (MD) Primary

Authorized official

Name Sandra Castle
Title President

Other identifiers

Identifier Type State Issuer
022N Other MD MEDICARE
4264065 Other MD CIGNA
J981 Other MD CAREFIRST
3654700 Other MD AETNA

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

Who is the authorized official for Castle Hearing Center, Inc?
NPPES lists Sandra Castle (President) as the authorized official for this organization.
What is the NPI number for Castle Hearing Center, Inc?
The NPI for Castle Hearing Center, Inc is 1366610909, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-02-18.