Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary L Newsom, RN, RNFA

Registered Nurse First Assistant in Saint Charles, MO · enumerated 2009.

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

National Provider Identifier

1427387554

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Registry record

Entity type Individual (Type 1)

Name Ms. Mary L Newsom

Credential RN, RNFA

Sex Female

Practice address 405 Savannah Ridge Dr, Saint Charles, MO, 63303

Phone (636) 244-0704

Fax (636) 244-0704

Enumeration date Dec 20, 2009

Last updated in NPPES Dec 20, 2009

Taxonomy & licenses

163WR0006X Registered Nurse First Assistant Nursing Service Providers · License 059781 (MO) Primary

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 Mary Newsom?

Mary Newsom is registered in NPPES with the primary taxonomy of Registered Nurse First Assistant. 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-12-20.