Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Leah Ellen Schlag, MA, PLPC

Professional Counselor in Saint Charles, MO · enumerated 2017 · practices at Step By Step Counseling, LLC.

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

National Provider Identifier

1417470782

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Registry record

Entity type Individual (Type 1)

Name Mrs. Leah Ellen Schlag

Credential MA, PLPC

Sex Female

Practice address 2081 Collier Corporate Pkwy, Saint Charles, MO, 63303

Phone (636) 225-0002

Enumeration date Jul 19, 2017

Last updated in NPPES Jul 19, 2017

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 2015043539 (MO) 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

What specialty is Leah Schlag?

Leah Schlag is registered in NPPES with the primary taxonomy of Professional Counselor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-07-19.