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

Dr. William Randall Knapp, OD

Individual provider Sports Vision Optometrist · NPI 1437131927

Dr. William Randall Knapp, OD is an Optometry in Upper Sandusky, Ohio. Graduated from Ohio State University - College of Optometry in 1996, 30 years ago. Accepts Medicare assignment. Licensed in Ohio.

Years since qualifying
30
Trained at
Ohio State University - College of Optometry
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.

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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

Sports Vision Optometrist (primary) Taxonomy 152WS0006X · Licence 4759/T1563 (OH)

Record details

NPI number1437131927
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedNovember 18, 2005
Last updated in NPPESAugust 21, 2008

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolOHIO STATE UNIVERSITY - COLLEGE OF OPTOMETRY
Graduated 1996 (30 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount