Karen Duncan, RN
NPI 1528653862 · Addiction (Substance Use Disorder) Registered Nurse · Somerdale, NJ
Karen Duncan, RN is a Addiction (Substance Use Disorder) Registered Nurse provider in Somerdale, NJ (NPI 1528653862).
Provider details
- NPI number
- 1528653862
- Entity type
- Individual
- Primary specialty
- Addiction (Substance Use Disorder) Registered NurseNursing Service Providers
- Credential
- RN
- Sex
- Female
- Sole proprietor
- No
- License
- 26NO10695800 (NJ)
Specialties & taxonomies
Nursing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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
- 2021-03-09
- Last updated
- 2021-03-09
- Certified
- 2021-02-18
Frequently asked questions
- What is Karen Duncan's NPI number?
- Karen Duncan's National Provider Identifier (NPI) is 1528653862, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Duncan's specialty?
- Karen Duncan is listed in the NPPES registry with a primary specialty of Addiction (Substance Use Disorder) Registered Nurse (Nursing Service Providers).
- Where is Karen Duncan located?
- Karen Duncan's practice location on file with NPPES is 10 Somerdale Square, Somerdale, NJ 08083-1345.
- What is Karen Duncan's phone number?
- The practice phone number listed in the NPPES registry for Karen Duncan is (855) 740-1921.
- Is Karen Duncan's NPI active?
- Yes — Karen Duncan's NPI (1528653862) is active in the NPPES registry as of the last update on 2021-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.