Dr. Thomas Callan M. D.
About this NPIWhat this record shows.
NPI 1699911487 is registered to Dr. Thomas Callan M. D., a Hematology & Oncology practising at 230 Cajon View Dr in El Cajon, California. Hematology & Oncology is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Thomas Callan M. D. has been enumerated in the National Provider Identifier (NPI) registry since 2008.
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 Dr. Thomas Callan M. D. accepts. To confirm in-network status with your specific health plan, contact Dr. Thomas Callan M. D. directly at (619) 440-4421.
Frequently asked
Yes. NPI 1699911487 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Hematology & Oncology 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 (619) 440-4421.
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. Thomas Callan M. D. is a Type-1 individual NPI.