Dianne Mackellar, LMHC LMFT CADAC
NPI 1083745418 · Marriage & Family Therapist · Oak Bluffs, MA
Dianne Mackellar, LMHC LMFT CADAC is a Marriage & Family Therapist provider in Oak Bluffs, MA (NPI 1083745418).
Provider details
- NPI number
- 1083745418
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMHC LMFT CADAC
- Sex
- Female
- Sole proprietor
- No
- License
- 1978 (MA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service 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
- 2007-03-08
- Last updated
- 2025-09-11
Frequently asked questions
- What is Dianne Mackellar's NPI number?
- Dianne Mackellar's National Provider Identifier (NPI) is 1083745418, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dianne Mackellar's specialty?
- Dianne Mackellar is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Dianne Mackellar located?
- Dianne Mackellar's practice location on file with NPPES is 34 Bayes Hill Rd, Oak Bluffs, MA 02557.
- What is Dianne Mackellar's phone number?
- The practice phone number listed in the NPPES registry for Dianne Mackellar is (508) 693-7996.
- Is Dianne Mackellar's NPI active?
- Yes — Dianne Mackellar's NPI (1083745418) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.