Dr. Sai Oak OD
About this NPIWhat this record shows.
NPI 1104712926 is registered to Dr. Sai Oak OD, a Optometrist practising at 165 N 3rd Ave in Sturgeon Bay, Wisconsin. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Sai Oak OD has been enumerated in the National Provider Identifier (NPI) registry since 2025.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20250723003119OptometryWI
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Dr. Sai Oak OD accepts. To confirm in-network status with your specific health plan, contact Dr. Sai Oak OD directly at (920) 743-2020.
Frequently asked
Yes. NPI 1104712926 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (920) 743-2020.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Dr. Sai Oak OD is a Type-1 individual NPI.