Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Gail Lynn Whitlock, MSCCC-SLP

Speech-Language Pathologist in Sheboygan, WI · enumerated 2007.

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

National Provider Identifier

1821203886

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Registry record

Entity type Individual (Type 1)

Name Ms. Gail Lynn Whitlock

Credential MSCCC-SLP

Sex Female

Practice address 3431 N 13th St, Sheboygan, WI, 53083

Phone (920) 457-5046

Enumeration date May 13, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License 1487-154 (WI) Primary

Other identifiers

Identifier	Type	State	Issuer
42757300	Medicaid	WI	-

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 Gail Whitlock's NPI record?

Cross-check NPI 1821203886 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821203886 active?

Yes, as of the latest NPPES snapshot, NPI 1821203886 is active (record last updated 2007-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.