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

Dr. Kenneth H Ristau, OD

Individual provider Optometrist · NPI 1235180233

Dr. Kenneth H Ristau, OD is an Optometry in Marshall, Minnesota. Graduated from Illinois College of Optometry at Chicago in 1997, 29 years ago. Practices with Shoptikal LLC, a 192-clinician group and accepts Medicare assignment. Licensed in Minnesota.

Years since qualifying
29
Trained at
Illinois College of Optometry at Chicago
Licensed in
MN
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

1200 Susan Dr
Marshall, MN 56258-2580
Phone: (507) 537-9652
Fax: (507) 537-9646
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 2643 (MN)

Record details

NPI number1235180233
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedMay 14, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 1997 (29 years in practice)
Group practice Shoptikal Llc — 192 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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