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

Dr. Dennis David Knowles, OD

Individual provider Optometrist · NPI 1104899061

Dr. Dennis David Knowles, OD is an Optometrist in Chillicothe, Ohio. Licensed in Ohio. Registered with an NPI since 2006.

Licensed in
OH
In the registry since
2006
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

921 E Main St
Chillicothe, OH 45601-2843
Phone: (740) 772-2100
Fax: (740) 772-2100
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3074 (OH)

Record details

NPI number1104899061
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedFebruary 10, 2006
Last updated in NPPESJuly 8, 2007

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