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

Dennis D Tieszen, OD

Individual provider Optometrist · NPI 1952452831

Dennis D Tieszen, OD is an Optometrist in Waterloo, Iowa. Licensed in Iowa. Registered with an NPI since 2007.

Licensed in
IA
In the registry since
2007
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

999 Home Plz Ste 100
Waterloo, IA 50701-4822
Phone: (319) 236-0815
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 01790 (IA)

Record details

NPI number1952452831
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJanuary 16, 2007
Last updated in NPPESDecember 22, 2009

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