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

Dr. Katherine Sage Kelly, D.C.

Chiropractor in Arlington, MA · enumerated 2008.

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

National Provider Identifier

1649456658

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Registry record

Entity type Individual (Type 1)

Name Dr. Katherine Sage Kelly

Credential D.C.

Sex Female

Practice address Arlington, MA, 02476

Phone (617) 835-0475

Fax (781) 257-4111

Enumeration date Jan 21, 2008

Last updated in NPPES Jan 21, 2008

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 3171 (MA) 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 Katherine Kelly's NPI record?

Cross-check NPI 1649456658 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649456658 active?

Yes, as of the latest NPPES snapshot, NPI 1649456658 is active (record last updated 2008-01-21).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-21.