Donna Underhill, LADC MSW
NPI 1558872119 · Addiction (Substance Use Disorder) Counselor · West Haven, CT
Donna Underhill, LADC MSW is a Addiction (Substance Use Disorder) Counselor provider in West Haven, CT (NPI 1558872119).
Provider details
- NPI number
- 1558872119
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) CounselorBehavioral Health & Social Service Providers
- Credential
- LADC MSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 001249 (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
8 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
- 2017-10-22
- Last updated
- 2017-10-22
Frequently asked questions
- What is Donna Underhill's NPI number?
- Donna Underhill's National Provider Identifier (NPI) is 1558872119, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Donna Underhill's specialty?
- Donna Underhill is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Counselor (Behavioral Health & Social Service Providers).
- Where is Donna Underhill located?
- Donna Underhill's practice location on file with NPPES is 5 Bayview Pl Fl 1, West Haven, CT 06516-4702.
- What is Donna Underhill's phone number?
- The practice phone number listed in the NPPES registry for Donna Underhill is (475) 422-4361.
- Is Donna Underhill's NPI active?
- Yes — Donna Underhill's NPI (1558872119) is active in the NPPES registry as of the last update on 2017-10-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.