Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. John Matthew Duff, DC

Individual provider Chiropractor · NPI 1598971582

Mr. John Matthew Duff, DC is a Chiropractor in Peoria, Arizona. Practices as a sole proprietor. Licensed in Arizona.

Licensed in
AZ
In the registry since
2007
What do these letters mean?
DC — Doctor of Chiropractic
A licensed chiropractor.

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Practice location Address checks out

8466 W Peoria Ave #11
Peoria, AZ 85345-6548
Phone: (623) 776-1555
Fax: (623) 845-0667
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Chiropractor (primary) Taxonomy 111N00000X · Licence 7297 (AZ)

Record details

NPI number1598971582
Entity typeIndividual (Type 1)
GenderMale
Credentials DC
Sole proprietorYes
NPI enumeratedMay 15, 2007
Last updated in NPPESJuly 8, 2007

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