Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Megan C Armstrong, CRNA

Certified Registered Nurse Anesthetist in Chesterfield, MO · enumerated 2012 · practices at Mid-West Anesthesia Partners, LLC.

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

National Provider Identifier

1053687509

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Registry record

Entity type Individual (Type 1)

Name Megan C Armstrong

Credential CRNA

Sex Female

Practice address 400 S Woods Mill Rd Ste 140, Chesterfield, MO, 63017

Phone (314) 485-1101

Enumeration date Mar 29, 2012

Last updated in NPPES Oct 9, 2024

Taxonomy & licenses

367500000X Certified Registered Nurse Anesthetist Physician Assistants & Advanced Practice Nursing Providers · License 2008007727 (MO) Primary

CRNA · Certified Registered Nurse Anesthetist: An advanced practice nurse specializing in anesthesia care. About the CRNA 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.

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Frequently asked questions

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.

What specialty is Megan Armstrong?

Megan Armstrong is registered in NPPES with the primary taxonomy of Certified Registered Nurse Anesthetist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-09.