Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Katherine Richman Salkin, AU. D.

Audiologist in San Mateo, CA · enumerated 2006.

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

National Provider Identifier

1811051295

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Richman Salkin

Credential AU. D.

Sex Female

Practice address 100 S Ellsworth Ave, Suite 303, San Mateo, CA, 94401

Phone (650) 579-4470

Enumeration date Dec 20, 2006

Last updated in NPPES Oct 21, 2010

Taxonomy & licenses

231H00000X Audiologist Speech, Language and Hearing Service Providers · License AU2409 (CA) Primary

AUD · Doctor of Audiology: A licensed audiologist diagnosing and treating hearing and balance disorders. About the AUD 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 1811051295 active?

Yes, as of the latest NPPES snapshot, NPI 1811051295 is active (record last updated 2010-10-21).

How do I verify Katherine Salkin's NPI record?

Cross-check NPI 1811051295 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-10-21.