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

Individual provider Athletic Trainer · NPI 1861902553

John Duff, MA, ATC is an Athletic Trainer in Denver, Colorado. Practices as a sole proprietor. Registered with an NPI since 2017.

In the registry since
2017
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
ATC — Certified Athletic Trainer
Prevents and treats sport and activity injuries.

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Practice location Address checks out

2001 Blake St
Denver, CO 80205-2060
Phone: (303) 921-9502
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Athletic Trainer (primary) Taxonomy 2255A2300X

Record details

NPI number1861902553
Entity typeIndividual (Type 1)
GenderMale
Credentials MA , ATC
Sole proprietorYes
NPI enumeratedOctober 6, 2017
Last updated in NPPESOctober 6, 2017
Mailing address2001 Blake St, Denver, CO 80205-2060

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