Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret R Fritschen, MA

Audiologist in Santa Rosa, CA · enumerated 2007.

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

National Provider Identifier

1669521639

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Margaret R Fritschen

Credential MA

Sex Female

Practice address 401 Bicentennial Way, Suite 180, Santa Rosa, CA, 95403

Phone (707) 571-4159

Fax (707) 571-4322

Enumeration date Jan 9, 2007

Last updated in NPPES Jan 11, 2022

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License AU 1406 (CA) 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

Where does Margaret Fritschen practice?

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

What is the NPI number for Margaret Fritschen?

The National Provider Identifier (NPI) for Margaret Fritschen is 1669521639, 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 2022-01-11.