Dr. William Sullivan DMD
About this NPIWhat this record shows.
NPI 1659375384 is registered to Dr. William Sullivan DMD, a Dentist practising at 100 Mcgregor St, E-542 in Manchester, New Hampshire. Dentist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Dr. William Sullivan DMD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 30301692NH
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. William Sullivan DMD accepts. To confirm in-network status with your specific health plan, contact Dr. William Sullivan DMD directly at (603) 663-6226.
Frequently asked
Yes. NPI 1659375384 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Dentist 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) 663-6226.
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. William Sullivan DMD is a Type-1 individual NPI.