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
Mailing addressPo Box 45, Peoria, AZ 85380-0045

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