Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Zweiacher Chiropractic Services

Chiropractor in Smyrna, DE · enumerated 2008 · authorized official Greg Zweiacher, Owner.

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

National Provider Identifier

1528214236

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Registry record

Entity type Organization (Type 2)

Legal business name Zweiacher Chiropractic Services

Practice address 100 S Main St, Suite 204, Smyrna, DE, 19977

Phone (302) 653-1188

Fax (302) 653-1182

Enumeration date Aug 13, 2008

Last updated in NPPES Aug 13, 2008

Taxonomy & classification

111N00000X Chiropractor Chiropractic Providers · License F10000349 (DE) Primary

Authorized official

Name Greg Zweiacher

Title Owner

Phone (302) 653-1188

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 is Zweiacher Chiropractic Services located?

The practice location on file with NPPES is in Smyrna, DE.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-08-13. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-08-13.