OrganizationActive
John Diune, D.D.S.
NPI 1821266776 · Endodontics · Nashua, NH
John Diune, D.D.S. is a Endodontics organization in Nashua, NH (NPI 1821266776).
Provider details
- NPI number
- 1821266776
- Entity type
- Organization
- Primary specialty
- EndodonticsDental Providers
- Organization subpart
- No
- Authorized official
- John Diune, Dentist Owner(603) 883-3777
- License
- 3437 (NH)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(88/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
451 Amherst St
Suite 104
Nashua, NH 03063-1200
Phone: (603) 883-3777
Fax: (603) 883-3778
Street-level locationGet directions
Mailing address
451 Amherst St
Nashua, NH 03063-1200
Registry dates
- Enumerated
- 2008-02-13
- Last updated
- 2008-02-13
Frequently asked questions
- What is John Diune, D.D.S.'s NPI number?
- John Diune, D.D.S.'s National Provider Identifier (NPI) is 1821266776, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is John Diune, D.D.S.?
- John Diune, D.D.S. is classified in the NPPES registry as Endodontics (Dental Providers).
- Where is John Diune, D.D.S. located?
- John Diune, D.D.S.'s practice location on file with NPPES is 451 Amherst St, Nashua, NH 03063-1200.
- What is John Diune, D.D.S.'s phone number?
- The practice phone number listed in the NPPES registry for John Diune, D.D.S. is (603) 883-3777.
- Who is the authorized official for John Diune, D.D.S.?
- The authorized official listed on John Diune, D.D.S.'s NPPES record is John Diune, Dentist Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is John Diune, D.D.S.'s NPI active?
- Yes — John Diune, D.D.S.'s NPI (1821266776) is active in the NPPES registry as of the last update on 2008-02-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.