Dr. Caldon Haj MD
Also known as
- Formerly known asHaj Mahmoud, Khaldoun
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1548523657 is registered to Dr. Caldon Haj MD, a Internal Medicine practising at 4052 Raffee Dr in San Diego, California. Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties. Dr. Caldon Haj MD has been enumerated in the National Provider Identifier (NPI) registry since 2012.
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. Caldon Haj MD accepts. To confirm in-network status with your specific health plan, contact Dr. Caldon Haj MD directly at (773) 828-4310.
Frequently asked
Yes. NPI 1548523657 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
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 (773) 828-4310.
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. Caldon Haj MD is a Type-1 individual NPI.