Mark Buchanan, M.D.
NPI 1326379231 · Internal Medicine Physician · Farmington, CT
Mark Buchanan, M.D. is a Internal Medicine Physician provider in Farmington, CT (NPI 1326379231).
Provider details
- NPI number
- 1326379231
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 037373 (CT)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 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
- 2010-01-18
- Last updated
- 2022-09-26
Frequently asked questions
- What is Mark Buchanan's NPI number?
- Mark Buchanan's National Provider Identifier (NPI) is 1326379231, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Buchanan's specialty?
- Mark Buchanan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Buchanan located?
- Mark Buchanan's practice location on file with NPPES is 263 Farmington Ave, Farmington, CT 06030-6210.
- What is Mark Buchanan's phone number?
- The practice phone number listed in the NPPES registry for Mark Buchanan is (860) 679-2893.
- Is Mark Buchanan's NPI active?
- Yes — Mark Buchanan's NPI (1326379231) is active in the NPPES registry as of the last update on 2022-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.