IndividualActive
John Barker
NPI 1427643428 · Pharmacist · Avondale, AZ
John Barker is a Pharmacist provider in Avondale, AZ (NPI 1427643428).
Provider details
- NPI number
- 1427643428
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- S009278 (AZ)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(63/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
950 E Van Buren St
Avondale, AZ 85323-1506
Phone: (623) 344-6823
Street-level locationGet directions
Mailing address
16203 W Young St
Surprise, AZ 85374-5747
Registry dates
- Enumerated
- 2021-03-02
- Last updated
- 2021-03-02
- Certified
- 2021-03-02
Frequently asked questions
- What is John Barker's NPI number?
- John Barker's National Provider Identifier (NPI) is 1427643428, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Barker's specialty?
- John Barker is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is John Barker located?
- John Barker's practice location on file with NPPES is 950 E Van Buren St, Avondale, AZ 85323-1506.
- What is John Barker's phone number?
- The practice phone number listed in the NPPES registry for John Barker is (623) 344-6823.
- Is John Barker's NPI active?
- Yes — John Barker's NPI (1427643428) is active in the NPPES registry as of the last update on 2021-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.