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

Jon M Williamson, OD

Individual provider Optometrist · NPI 1932104114

Jon M Williamson, OD is an Optometry in Sparta, Wisconsin. Graduated from Illinois College of Optometry at Chicago in 1985, 41 years ago. Practices with Gundersen Clinic Ltd, a 427-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
41
Trained at
Illinois College of Optometry at Chicago
Licensed in
WI
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

1111 W Wisconsin St
Sparta, WI 54656-2233
Phone: (608) 269-6731
Show map & directions

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

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 2115 (WI)

Record details

NPI number1932104114
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedJune 15, 2005
Last updated in NPPESJuly 21, 2022
Mailing address1836 South Ave, La Crosse, WI 54601-5429

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1985 (41 years in practice)
Group practice Gundersen Clinic Ltd — 427 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Sparta