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

John Knapper, ATC, LAT

Individual provider Athletic Trainer · NPI 1174091151

John Knapper, ATC, LAT is an Athletic Trainer in Mason City, Iowa. Licensed in Iowa. Registered with an NPI since 2018.

Licensed in
IA
In the registry since
2018
What do these letters mean?
ATC — Certified Athletic Trainer
Prevents and treats sport and activity injuries.
LAT — Licensed Athletic Trainer
A state-licensed athletic trainer.

See every abbreviation used in this directory →

Practice location Address checks out

1501 4th St SW
Mason City, IA 50401-2737
Phone: (641) 428-6648
Fax: (641) 428-6484
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Athletic Trainer (primary) Taxonomy 2255A2300X · Licence 079138 (IA)

Record details

NPI number1174091151
Entity typeIndividual (Type 1)
GenderMale
Credentials ATC , LAT
Sole proprietorNo
NPI enumeratedNovember 7, 2018
Last updated in NPPESNovember 7, 2018
Mailing address1501 4th St Sw, Mason City, IA 50401-2737

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