Karen O'Brien, L.C.S.W.
NPI 1700243490 · Clinical Social Worker · Derby, CT
Karen O'Brien, L.C.S.W. is a Clinical Social Worker provider in Derby, CT (NPI 1700243490).
Provider details
- NPI number
- 1700243490
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- L.C.S.W.
- Sex
- Female
- Sole proprietor
- No
- License
- MSW.003114 (CT)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
10 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
- 2016-01-26
- Last updated
- 2023-01-04
- Certified
- 2023-01-04
Frequently asked questions
- What is Karen O'Brien's NPI number?
- Karen O'Brien's National Provider Identifier (NPI) is 1700243490, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen O'Brien's specialty?
- Karen O'Brien is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Karen O'Brien located?
- Karen O'Brien's practice location on file with NPPES is 11 Hickory Rd, Derby, CT 06418-2210.
- What is Karen O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Karen O'Brien is (203) 581-2685.
- Is Karen O'Brien's NPI active?
- Yes — Karen O'Brien's NPI (1700243490) is active in the NPPES registry as of the last update on 2023-01-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.