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

John C Justin, MD

Individual provider Pediatrics Physician · NPI 1104811041

John C Justin, MD is a Pediatrics Physician in Mason City, Iowa. Licensed in Iowa. Registered with an NPI since 2005.

Licensed in
IA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

910 N Eisenhower Ave
Mason City, IA 50401-1525
Phone: (641) 422-7388
Fax: (641) 422-5755
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 18486 (IA)

Record details

NPI number1104811041
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 16, 2005
Last updated in NPPESDecember 11, 2007
Mailing address200 Hawkins Dr, Iowa City, IA 52242-1009

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