Gregory Macewan
NPI 1134378482 · Mental Health Counselor · New Haven, CT
Enrolled with Medicare as Practitioner - Clinical Psychologist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Macewan is a Mental Health Counselor provider in New Haven, CT (NPI 1134378482).
Provider details
- NPI number
- 1134378482
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Sex
- Male
- Sole proprietor
- No
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
17 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2008-09-11
- Last updated
- 2010-06-09
Frequently asked questions
- What is Gregory Macewan's NPI number?
- Gregory Macewan's National Provider Identifier (NPI) is 1134378482, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Macewan's specialty?
- Gregory Macewan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Gregory Macewan located?
- Gregory Macewan's practice location on file with NPPES is 425 George St, New Haven, CT 06511-5410.
- What is Gregory Macewan's phone number?
- The practice phone number listed in the NPPES registry for Gregory Macewan is (617) 877-7600.
- Does Gregory Macewan accept Medicare?
- Gregory Macewan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Macewan's NPI active?
- Yes — Gregory Macewan's NPI (1134378482) is active in the NPPES registry as of the last update on 2010-06-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.