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

Cortney D Birschbach, OD

Individual provider Corneal and Contact Management Optometrist · NPI 1376105700

Cortney D Birschbach, OD is an Optometry in Fond Du Lac, Wisconsin. Graduated from Illinois College of Optometry at Chicago in 2019, 7 years ago. Practices with Aeg Wisconsin Professional Ltd, a 16-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
7
Trained at
Illinois College of Optometry at Chicago
Licensed in
WI
In the registry since
2019
Specialties on file
2
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

355 N Peters Ave
Fond Du Lac, WI 54935-8258
Phone: (920) 922-7121
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3576-35 (WI)
Corneal and Contact Management Optometrist Taxonomy 152WC0802X · Licence 3576-35 (WI)

Record details

NPI number1376105700
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJuly 6, 2019
Last updated in NPPESApril 17, 2020
Certification dateApril 17, 2020
Mailing address355 N Peters Ave, Fond Du Lac, WI 54935-8258

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolILLINOIS COLLEGE OF OPTOMETRY AT CHICAGO
Graduated 2019 (7 years in practice)
Group practice Aeg Wisconsin Professional Ltd — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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