Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret Yerkes Killeen

Professional Counselor in Saint Louis, MO · enumerated 2021.

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

National Provider Identifier

1306500855

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Registry record

Entity type Individual (Type 1)

Name Margaret Yerkes Killeen

Sex Female

Practice address 6744 Clayton Rd Ste 221, Saint Louis, MO, 63117

Phone (314) 720-2710

Enumeration date Oct 29, 2021

Last updated in NPPES Oct 29, 2021

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License 2011008961 (MO) Primary

Other identifiers

Identifier	Type	State	Issuer
2011008961	Other	MO	STATE OF MISSOURI

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 Killeen practice?

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

What is the NPI number for Margaret Killeen?

The National Provider Identifier (NPI) for Margaret Killeen is 1306500855, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Lauren Kofron Counselor · Saint Louis, MO NPI 1689482069 Jennifer Wainscott Professional Counselor · Richmond Heights, MO NPI 1295531739 Shelly Simpson Counselor · Richmond Heights, MO NPI 1134914880

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-29.