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

Dr. John D Kiernan, OD

Individual provider Optometrist · NPI 1326046152

Dr. John D Kiernan, OD is an Optometrist in Sioux City, Iowa. Practices as a sole proprietor. Licensed in Iowa.

Licensed in
IA
In the registry since
2005
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

1214 Pierce St
Sioux City, IA 51105-1417
Phone: (712) 252-4406
Fax: (712) 252-5296
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 1687 (IA)

Record details

NPI number1326046152
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedJuly 14, 2005
Last updated in NPPESFebruary 21, 2008

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