Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Alyssa S Keiner, AGNP-BC

Adult Health Nurse Practitioner in Wentzville, MO · enumerated 2018.

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

National Provider Identifier

1336649276

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Registry record

Entity type Individual (Type 1)

Name Mrs. Alyssa S Keiner

Credential AGNP-BC

Sex Female

Practice address 1620 Springmill Dr, Wentzville, MO, 63385

Phone (636) 751-3405

Enumeration date Feb 16, 2018

Last updated in NPPES Aug 16, 2021

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2018001324 (MO) 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

What is the NPI number for Alyssa Keiner?

The National Provider Identifier (NPI) for Alyssa Keiner is 1336649276, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alyssa Keiner practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-16.