Joanna Mackenzie
NPI 1740950633 · Marriage & Family Therapist · Old Greenwich, CT
Joanna Mackenzie is a Marriage & Family Therapist provider in Old Greenwich, CT (NPI 1740950633).
Provider details
- NPI number
- 1740950633
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 2679 (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
4 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
- 2021-09-14
- Last updated
- 2021-09-14
- Certified
- 2021-09-14
Frequently asked questions
- What is Joanna Mackenzie's NPI number?
- Joanna Mackenzie's National Provider Identifier (NPI) is 1740950633, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanna Mackenzie's specialty?
- Joanna Mackenzie is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Joanna Mackenzie located?
- Joanna Mackenzie's practice location on file with NPPES is 3 W End Ave, Old Greenwich, CT 06870-1640.
- What is Joanna Mackenzie's phone number?
- The practice phone number listed in the NPPES registry for Joanna Mackenzie is (203) 722-5152.
- Is Joanna Mackenzie's NPI active?
- Yes — Joanna Mackenzie's NPI (1740950633) is active in the NPPES registry as of the last update on 2021-09-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.