NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Sarah Chalk, APRN, FNP-BC

Family Nurse Practitioner in Union, MO · enumerated 2021.

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

National Provider Identifier

1104590801

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Mrs. Sarah Chalk
Credential APRN, FNP-BC
Sex Female
Practice address 1935 Prairie Dell Rd Ste 400, Union, MO, 63084
Fax (636) 649-3087
Enumeration date Aug 5, 2021
Last updated in NPPES Jun 24, 2024

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2021027709 (MO) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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

Where does Sarah Chalk practice?
The practice location on file with NPPES is in Union, MO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sarah Chalk?
The National Provider Identifier (NPI) for Sarah Chalk is 1104590801, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-24.