NPI Portal NPI Lookup & Verification

John Willis

John Willis is a Pharmacist provider (Pharmacist) practicing in Mesa, AZ, registered in the NPPES registry with NPI 1356763791 since 2014.

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NPI 1356763791
Entity type Individual (Type 1)
Name John Willis
Sex Male
Practice address 6131 E SOUTHERN AVE, Mesa, AZ, 85206
Phone 4808304229
Fax 4806549136
Enumeration date 2014-01-18
Last updated in NPPES 2014-01-18

Taxonomy & licenses

Taxonomy code Specialty Primary License State
183500000X Pharmacist Primary 9006 AZ
Copy-ready billing details
Provider: John Willis
NPI: 1356763791
Taxonomy: 183500000X (Pharmacist)
Address: 6131 E SOUTHERN AVE, Mesa, AZ, 85206

Other providers at this practice address

NPI Name Type Specialty Location
1083669907 National Vision, Inc. Organization Eyewear Supplier Mesa, AZ
1881613867 Walmart Inc. Organization Community/Retail Pharmacy Mesa, AZ
1336518547 Michael Holleran Individual Pharmacist Mesa, AZ
1295288306 Krystal Chee Individual Optometrist Mesa, AZ
1568917557 Linda Warwick Individual Pharmacist Mesa, AZ
1760259469 Walmart, Inc. Organization Optician Mesa, AZ
1225822380 Manny Alarcon Individual Optician Mesa, AZ
1346037751 Brant Owens Individual Optician Mesa, AZ

Verify this record

Cross-check NPI 1356763791 against the authoritative CMS record: view John Willis 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

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 Willis?
John Willis is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-01-18.