John Diune, D.D.S.
About this NPIWhat this record shows.
NPI 1821266776 is registered to John Diune, D.D.S., a healthcare organisation classified as "Endodontics" and located at 451 Amherst St, Suite 104 in Nashua, New Hampshire. The organisation's authorised official is John Diune. The organisation has been enumerated in the NPI registry since 2008.
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 John Diune, D.D.S. accepts. To confirm in-network status with your specific health plan, contact John Diune, D.D.S. directly at (603) 883-3777.
Frequently asked
Yes. NPI 1821266776 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Endodontics 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 (603) 883-3777.
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. John Diune, D.D.S. is a Type-2 organisational NPI.