Mary Kathryn Zak O.D.
About this NPIWhat this record shows.
NPI 1821543836 is registered to Mary Kathryn Zak O.D., a Optometrist practising at 1975 Virginia Ave in Martinsville, Virginia. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Mary Kathryn Zak O.D. has been enumerated in the National Provider Identifier (NPI) registry since 2016.
Your brand here.
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
- I20161101001395OptometryVA
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 Mary Kathryn Zak O.D. accepts. To confirm in-network status with your specific health plan, contact Mary Kathryn Zak O.D. directly at (276) 647-3937.
Frequently asked
Yes. NPI 1821543836 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 (276) 647-3937.
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. Mary Kathryn Zak O.D. is a Type-1 individual NPI.