Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Catherine Susan Sanders, M.A.
Audiologist in Santa Rosa, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1831244896
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Registry record
Entity type Individual (Type 1)
Name Catherine Susan Sanders
Credential M.A.
Sex Female
Practice address 3333 Mendocino Ave, Suite 240, Santa Rosa, CA, 95403
Phone (707) 566-5201
Enumeration date Jan 23, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
231H00000X Audiologist Speech, Language and Hearing Service Providers · License AU 1578 (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.
Frequently asked questions
What specialty is Catherine Sanders?
Catherine Sanders is registered in NPPES with the primary taxonomy of Audiologist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Kathy Matonak Audiologist · Santa Rosa, CA NPI 1548310188 Joanne Ewart Audiologist · Santa Rosa, CA NPI 1750432100 Harold Mancusi-Ungaro Plastic Surgery Physician · Santa Rosa, CA NPI 1245382050 Donald Mcgillivray Audiologist · Santa Rosa, CA NPI 1538316708 Nancy Warren Audiologist · Santa Rosa, CA NPI 1265734404 Maureen Mckenzie Registered Dietitian · Santa Rosa, CA NPI 1467820647
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.