Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
John Gregory Hansen Jr., M.D.
Specialist in Sun City West, AZ · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1679592372
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Registry record
Entity type Individual (Type 1)
Name John Gregory Hansen Jr.
Credential M.D.
Sex Male
Practice address 13907 W Camino Del Sol, Suite 101, Sun City West, AZ, 85375
Phone (623) 584-4695
Fax (623) 298-6708
Enumeration date Jul 19, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 340018047 | Other | AZ | RAILROAD MEDICARE |
| 1Z5256 | Other | AZ | HEALTHNET OF AZ |
| 434712 | Medicaid | AZ | - |
| AZ0867880 | Other | AZ | BLUE CROSS BLUE SHIELD AZ |
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
What is the NPI number for John Hansen?
The National Provider Identifier (NPI) for John Hansen is 1679592372, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Hansen practice?
The practice location on file with NPPES is in Sun City West, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.