William Barker, ATC
NPI 1891177887 · Athletic Trainer · Chico, CA
William Barker, ATC is a Athletic Trainer provider in Chico, CA (NPI 1891177887).
Provider details
- NPI number
- 1891177887
- Entity type
- Individual
- Primary specialty
- Athletic TrainerRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- ATC
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
11 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2015-06-25
- Last updated
- 2015-06-25
Frequently asked questions
- What is William Barker's NPI number?
- William Barker's National Provider Identifier (NPI) is 1891177887, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Barker's specialty?
- William Barker is listed in the NPPES registry with a primary specialty of Athletic Trainer (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is William Barker located?
- William Barker's practice location on file with NPPES is Acker Gym Rm 149, Chico, CA 95929-0001.
- What is William Barker's phone number?
- The practice phone number listed in the NPPES registry for William Barker is (530) 898-5873.
- Is William Barker's NPI active?
- Yes — William Barker's NPI (1891177887) is active in the NPPES registry as of the last update on 2015-06-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.