Maryellen Gallagher, CAC
NPI 1518116201 · Addiction (Substance Use Disorder) Counselor · Derby, CT
Maryellen Gallagher, CAC is a Addiction (Substance Use Disorder) Counselor provider in Derby, CT (NPI 1518116201).
Provider details
- NPI number
- 1518116201
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- CAC
- Sex
- Female
- 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
- 2008-09-17
- Last updated
- 2008-09-17
Frequently asked questions
- What is Maryellen Gallagher's NPI number?
- Maryellen Gallagher's National Provider Identifier (NPI) is 1518116201, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maryellen Gallagher's specialty?
- Maryellen Gallagher is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Maryellen Gallagher located?
- Maryellen Gallagher's practice location on file with NPPES is 130 Division St., Derby, CT 06418.
- What is Maryellen Gallagher's phone number?
- The practice phone number listed in the NPPES registry for Maryellen Gallagher is (203) 732-7550.
- Is Maryellen Gallagher's NPI active?
- Yes — Maryellen Gallagher's NPI (1518116201) is active in the NPPES registry as of the last update on 2008-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.