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

Dr. Sai Oak, OD

Individual provider Optometrist · NPI 1104712926

Dr. Sai Oak, OD is an Optometry in Sturgeon Bay, Wisconsin. Graduated from Southern College of Optometry in 2025, 1 year ago. Practices with Door County Eye Associates, Inc, a 4-clinician group and accepts Medicare assignment. Licensed in Wisconsin.

Years since qualifying
1
Trained at
Southern College of Optometry
Licensed in
WI
In the registry since
2025
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

165 N 3rd Ave
Sturgeon Bay, WI 54235-2415
Phone: (920) 743-2020
Fax: (920) 743-9601
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4074-35 (WI)

Record details

NPI number1104712926
Entity typeIndividual (Type 1)
GenderFemale
Credentials OD
Sole proprietorNo
NPI enumeratedJune 17, 2025
Last updated in NPPESSeptember 30, 2025
Certification dateSeptember 30, 2025

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolSOUTHERN COLLEGE OF OPTOMETRY
Graduated 2025 (1 years in practice)
Group practice Door County Eye Associates, Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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