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

Dr. Wallace John Knapp, OD

Individual provider Optometrist · NPI 1477535383

Dr. Wallace John Knapp, OD is an Optometrist in Upper Sandusky, Ohio. Licensed in Ohio. Registered with an NPI since 2005.

Licensed in
OH
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.

See every abbreviation used in this directory →

Practice location Address checks out

212 E Wyandot Ave
Upper Sandusky, OH 43351-1432
Phone: (419) 294-2421
Fax: (419) 294-2499
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 2913/T826 (OH)

Record details

NPI number1477535383
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedNovember 16, 2005
Last updated in NPPESApril 22, 2011
Mailing addressPo Box 540, Upper Sandusky, OH 43351-0540

Other providers in Upper Sandusky