Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Diana Adele Harkness, DC

Chiropractor in Reading, PA · enumerated 2022.

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

National Provider Identifier

1063140861

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Registry record

Entity type Individual (Type 1)

Name Dr. Diana Adele Harkness

Credential DC

Sex Female

Practice address 1057 Van Reed Rd, Reading, PA, 19605

Phone (610) 750-9131

Enumeration date Aug 10, 2022

Last updated in NPPES Oct 22, 2024

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 006.0134175 (VT) Secondary

111N00000X Chiropractor Chiropractic Providers · License DC011943 (PA) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Diana Harkness practice?

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

What is the NPI number for Diana Harkness?

The National Provider Identifier (NPI) for Diana Harkness is 1063140861, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-22.