NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. Kathryn C Riley, D.C.

Chiropractor in Mountain View, CA · enumerated 2006.

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

National Provider Identifier

1164438388

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Registry record

Entity type Individual (Type 1)
Name Dr. Kathryn C Riley
Credential D.C.
Sex Female
Practice address Mountain View, CA, 94040
Phone (650) 969-4500
Fax (650) 969-4504
Enumeration date Jul 31, 2006
Last updated in NPPES Mar 2, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC0144800 (CA) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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.

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Frequently asked questions

How do I verify Kathryn Riley's NPI record?
Cross-check NPI 1164438388 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1164438388 active?
Yes, as of the latest NPPES snapshot, NPI 1164438388 is active (record last updated 2016-03-02).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-03-02.