NPI Portal NPI Lookup & Verification

Dr. William Marc Jackson, DC

Dr. William Marc Jackson is a Chiropractor provider (Chiropractor) practicing in Covington, GA, registered in the NPPES registry with NPI 1891895140 since 2006. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1891895140
Entity type Individual (Type 1)
Name Dr. William Marc Jackson
Credential DC
Sex Male
Practice address Covington, GA, 30014
Phone 7707864854
Fax 7707862674
Enumeration date 2006-09-25
Last updated in NPPES 2007-07-08

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
111N00000X Chiropractor Primary CHIR004915 GA

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
00625798A Medicaid GA
Copy-ready billing details
Provider: William Jackson, DC
NPI: 1891895140
Taxonomy: 111N00000X (Chiropractor)
Address: Covington, GA, 30014

Verify this record

Cross-check NPI 1891895140 against the authoritative CMS record: view Dr. William Marc Jackson on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What specialty is William Jackson?
William Jackson is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.