OrganizationActive
Mark R Harrison DDS PA
NPI 1508875329 · Pediatric Dentistry · Exeter, NH
Mark R Harrison DDS PA is a Pediatric Dentistry organization in Exeter, NH (NPI 1508875329).
Provider details
- NPI number
- 1508875329
- Entity type
- Organization
- Primary specialty
- Pediatric DentistryDental Providers
- Organization subpart
- No
- Authorized official
- Mark Harrison, Dentist / President(603) 778-0400
- License
- 2251 (NH)
Specialties & taxonomies
Dental Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
40 Portsmouth Ave
Exeter, NH 03833-2106
Phone: (603) 778-0400
Street-level locationGet directions
Mailing address
40 Portsmouth Ave
Exeter, NH 03833-2106
Registry dates
- Enumerated
- 2006-08-08
- Last updated
- 2020-08-22
Frequently asked questions
- What is Mark R Harrison DDS PA's NPI number?
- Mark R Harrison DDS PA's National Provider Identifier (NPI) is 1508875329, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Mark R Harrison DDS PA?
- Mark R Harrison DDS PA is classified in the NPPES registry as Pediatric Dentistry (Dental Providers).
- Where is Mark R Harrison DDS PA located?
- Mark R Harrison DDS PA's practice location on file with NPPES is 40 Portsmouth Ave, Exeter, NH 03833-2106.
- What is Mark R Harrison DDS PA's phone number?
- The practice phone number listed in the NPPES registry for Mark R Harrison DDS PA is (603) 778-0400.
- Who is the authorized official for Mark R Harrison DDS PA?
- The authorized official listed on Mark R Harrison DDS PA's NPPES record is Mark Harrison, Dentist / President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Mark R Harrison DDS PA's NPI active?
- Yes — Mark R Harrison DDS PA's NPI (1508875329) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.