Dr. Karen Caldwell MD-PHD
About this NPIWhat this record shows.
NPI 1407996481 is registered to Dr. Karen Caldwell MD-PHD, a Rheumatology Physician practising at 269 Union St in Lynn, Massachusetts. Rheumatology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. Karen Caldwell MD-PHD has been enumerated in the National Provider Identifier (NPI) registry since 2007.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Source: NPPES public registry.
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. Karen Caldwell MD-PHD accepts. To confirm in-network status with your specific health plan, contact Dr. Karen Caldwell MD-PHD directly at (781) 596-2502.
Frequently asked
Yes. NPI 1407996481 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Rheumatology Physician 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 (781) 596-2502.
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. Karen Caldwell MD-PHD is a Type-1 individual NPI.