Gregory Blackstone, D.D.S
NPI 1639229495 · Orthodontics and Dentofacial Orthopedics Dentistry · Presque Isle, ME
Gregory Blackstone, D.D.S is a Orthodontics and Dentofacial Orthopedics Dentistry provider in Presque Isle, ME (NPI 1639229495).
Provider details
- NPI number
- 1639229495
- Entity type
- Individual
- Primary specialty
- Orthodontics and Dentofacial Orthopedics DentistryDental Providers
- Credential
- D.D.S
- Sex
- Male
- Sole proprietor
- Yes
- License
- 3027 (ME)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Mailing address
Registry dates
- Enumerated
- 2007-01-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gregory Blackstone's NPI number?
- Gregory Blackstone's National Provider Identifier (NPI) is 1639229495, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Blackstone's specialty?
- Gregory Blackstone is listed in the NPPES registry with a primary specialty of Orthodontics and Dentofacial Orthopedics Dentistry (Dental Providers).
- Where is Gregory Blackstone located?
- Gregory Blackstone's practice location on file with NPPES is 379 Centerline Rd, Presque Isle, ME 04769-5227.
- What is Gregory Blackstone's phone number?
- The practice phone number listed in the NPPES registry for Gregory Blackstone is (207) 762-7881.
- Is Gregory Blackstone's NPI active?
- Yes — Gregory Blackstone's NPI (1639229495) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.