Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Grace Duke, SLP

Speech-Language Pathologist in Middlebury, CT · enumerated 2023.

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

National Provider Identifier

1023719580

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Registry record

Entity type Individual (Type 1)

Name Grace Duke

Credential SLP

Sex Female

Practice address 1625 Straits Tpke Ste 303, Middlebury, CT, 06762

Phone (203) 598-0400

Fax (203) 598-0852

Enumeration date Mar 13, 2023

Last updated in NPPES Mar 13, 2023

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 5049 (CT) Primary

SLP · Speech-Language Pathologist: A licensed clinician treating speech, language, and swallowing disorders. About the SLP credential

Other identifiers

Identifier	Type	State	Issuer
004190328	Medicaid	CT	-

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

How do I verify Grace Duke's NPI record?

Cross-check NPI 1023719580 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1023719580 active?

Yes, as of the latest NPPES snapshot, NPI 1023719580 is active (record last updated 2023-03-13).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-13.