Crystal Mackinnon, LCSW
NPI 1275812372 · Clinical Social Worker · Groton, CT
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Crystal Mackinnon, LCSW is a Clinical Social Worker provider in Groton, CT (NPI 1275812372).
Provider details
- NPI number
- 1275812372
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- No
- License
- 008709 (CT)
Specialties & taxonomies
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
15 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
- 2011-08-08
- Last updated
- 2021-03-05
- Certified
- 2021-03-05
Frequently asked questions
- What is Crystal Mackinnon's NPI number?
- Crystal Mackinnon's National Provider Identifier (NPI) is 1275812372, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Mackinnon's specialty?
- Crystal Mackinnon is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Crystal Mackinnon located?
- Crystal Mackinnon's practice location on file with NPPES is 428 Long Hill Rd Ste 201, Groton, CT 06340-3811.
- What is Crystal Mackinnon's phone number?
- The practice phone number listed in the NPPES registry for Crystal Mackinnon is (860) 333-8765.
- Does Crystal Mackinnon accept Medicare?
- Crystal Mackinnon is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Crystal Mackinnon's NPI active?
- Yes — Crystal Mackinnon's NPI (1275812372) is active in the NPPES registry as of the last update on 2021-03-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.