Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Margaret M Egan, MSW

Mental Health Counselor in Brentwood, MO · enumerated 2011.

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

National Provider Identifier

1871872861

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Registry record

Entity type Individual (Type 1)

Name Ms. Margaret M Egan

Credential MSW

Sex Female

Practice address 2525 S Brentwood Blvd, Brentwood, MO, 63144

Phone (314) 962-5300

Enumeration date Aug 9, 2011

Last updated in NPPES Oct 13, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Margaret Egan practice?

The practice location on file with NPPES is in Brentwood, MO. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Margaret Egan?

The National Provider Identifier (NPI) for Margaret Egan is 1871872861, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-10-13.