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

Dr. Mathew Bryan Mergenthaler, OD

Individual provider Optometrist · NPI 1568874907

Dr. Mathew Bryan Mergenthaler, OD is an Optometry in Medford, Wisconsin. Graduated from Illinois College of Optometry at Chicago in 2014, 12 years ago. Practices with Healthview Eye Care Center, SC, a 5-clinician group and accepts Medicare assignment. Licensed in Iowa and Wisconsin.

Years since qualifying
12
Trained at
Illinois College of Optometry at Chicago
Licensed in
IA, WI
In the registry since
2014
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

671 S Gibson St
Medford, WI 54451-1631
Phone: (608) 790-5851
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 3359 (WI)
Optometrist Taxonomy 152W00000X · Licence 073539 (IA)

Record details

NPI number1568874907
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedMay 20, 2014
Last updated in NPPESJanuary 7, 2026
Certification dateJanuary 7, 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 2014 (12 years in practice)
Group practice Healthview Eye Care Center, Sc — 5 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations5 on file with Medicare

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