Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Barber
Chiropractor in Knoxville, TN · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538399449
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Registry record
Entity type Individual (Type 1)
Name John Barber
Sex Male
Practice address 4600 Chapman Hwy, Knoxville, TN, 37920
Phone (865) 577-1213
Fax (865) 566-0457
Enumeration date Jul 27, 2009
Last updated in NPPES Jan 27, 2016
Taxonomy & licenses
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.
Frequently asked questions
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.
What specialty is John Barber?
John Barber 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.
Other providers at this practice address
Browse all → First Choice Chiropractic PC Chiropractor · Knoxville, TN NPI 1578624383 First Choice Chiropractic Care Inc Chiropractor · Knoxville, TN NPI 1942649892 First Choice Chiropractic Health & Wellness Physical Medicine & Rehabilitation Physician · Knoxville, TN NPI 1710465067 First Choice Integrated Health Care PC General Practice Physician · Knoxville, TN NPI 1861054041
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-27.