John Barber
NPI 1538399449 · Chiropractor · Knoxville, TN
Enrolled with Medicare as Practitioner - Chiropractic · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Barber is a Chiropractor provider in Knoxville, TN (NPI 1538399449).
Provider details
- NPI number
- 1538399449
- Entity type
- Individual
- Primary specialty
- ChiropractorChiropractic Providers
- Sex
- Male
- Sole proprietor
- No
- License
- DC0000002327 (TN)
Specialties & taxonomies
Chiropractic Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-07-27
- Last updated
- 2016-01-27
Frequently asked questions
- What is John Barber's NPI number?
- John Barber's National Provider Identifier (NPI) is 1538399449, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Barber's specialty?
- John Barber is listed in the NPPES registry with a primary specialty of Chiropractor (Chiropractic Providers).
- Where is John Barber located?
- John Barber's practice location on file with NPPES is 4600 Chapman Hwy, Knoxville, TN 37920-4361.
- What is John Barber's phone number?
- The practice phone number listed in the NPPES registry for John Barber is (865) 577-1213.
- Does John Barber accept Medicare?
- John Barber is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Barber's NPI active?
- Yes — John Barber's NPI (1538399449) is active in the NPPES registry as of the last update on 2016-01-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.