Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gemma Marie Sisk

Speech-Language Assistant in Pikesville, MD · enumerated 2025.

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

National Provider Identifier

1689559445

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Registry record

Entity type Individual (Type 1)

Name Gemma Marie Sisk

Sex Female

Practice address 115 Sudbrook Ln, Ste A, Pikesville, MD, 21208

Phone (443) 918-5575

Enumeration date Aug 9, 2025

Last updated in NPPES Aug 9, 2025

Taxonomy & licenses

2355S0801X Speech-Language Assistant Speech, Language and Hearing Service Providers · License 00212L (MD) 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.

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Frequently asked questions

Is NPI 1689559445 active?

Yes, as of the latest NPPES snapshot, NPI 1689559445 is active (record last updated 2025-08-09).

How do I verify Gemma Sisk's NPI record?

Cross-check NPI 1689559445 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 2025-08-09.