Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. John P Duffy, CCP
Perfusionist in Phoenix, AZ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1295947059
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Registry record
Entity type Individual (Type 1)
Name Mr. John P Duffy
Credential CCP
Sex Male
Practice address 500 W Thomas Rd Ste 460, Phoenix, AZ, 85013
Phone (623) 512-4155
Enumeration date May 4, 2007
Last updated in NPPES Feb 7, 2013
Taxonomy & licenses
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
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 Duffy?
John Duffy is registered in NPPES with the primary taxonomy of Perfusionist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-07.