Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sarah E Griewahn, FNP

Registered Nurse in Austin, TX · enumerated 2006.

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

National Provider Identifier

1689682775

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Registry record

Entity type Individual (Type 1)

Name Sarah E Griewahn

Credential FNP

Sex Female

Practice address 5600 Bee Cave Road Ste # 100, Austin, TX, 78746

Phone (512) 329-8182

Fax (512) 329-8281

Enumeration date Aug 4, 2006

Last updated in NPPES Apr 7, 2014

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 215503 (TX) Primary

FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan. About the FNP 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

Is NPI 1689682775 active?

Yes, as of the latest NPPES snapshot, NPI 1689682775 is active (record last updated 2014-04-07).

How do I verify Sarah Griewahn's NPI record?

Cross-check NPI 1689682775 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-07.