Thomas Callan OD
About this NPIWhat this record shows.
NPI 1043348394 is registered to Thomas Callan OD, a Optometrist practising at 675 Ygnacio Valley Rd, Suite B103 in Walnut Creek, California. Optometrist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Thomas Callan OD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
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 Thomas Callan OD accepts. To confirm in-network status with your specific health plan, contact Thomas Callan OD directly at (925) 933-0270.
Frequently asked
Yes. NPI 1043348394 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 (925) 933-0270.
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. Thomas Callan OD is a Type-1 individual NPI.