Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Carolyn Gertrude Marteen, RN

Registered Nurse in St Louis, MO · enumerated 2007.

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

National Provider Identifier

1093929242

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Registry record

Entity type Individual (Type 1)

Name Ms. Carolyn Gertrude Marteen

Credential RN

Sex Female

Practice address 5471 Dr Martin Luther King Dr, St Louis, MO, 63112

Phone (314) 367-5820

Fax (314) 367-7010

Enumeration date May 9, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 132959 (MO) Primary

163W00000X Registered Nurse Nursing Service Providers Secondary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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

What specialty is Carolyn Marteen?

Carolyn Marteen is registered in NPPES with the primary taxonomy of Registered Nurse. 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 2007-07-08.