Ella Duncan, LCSW
NPI 1386620375 · Clinical Social Worker · O Fallon, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ella Duncan, LCSW is a Clinical Social Worker provider in O Fallon, IL (NPI 1386620375).
Provider details
- NPI number
- 1386620375
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 149.011508 (IL)
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
20 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
- 2005-12-21
- Last updated
- 2019-03-07
Frequently asked questions
- What is Ella Duncan's NPI number?
- Ella Duncan's National Provider Identifier (NPI) is 1386620375, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ella Duncan's specialty?
- Ella Duncan is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Ella Duncan located?
- Ella Duncan's practice location on file with NPPES is 7 Eagle Ctr Ste B-1, O Fallon, IL 62269-1946.
- What is Ella Duncan's phone number?
- The practice phone number listed in the NPPES registry for Ella Duncan is (618) 726-2041.
- Does Ella Duncan accept Medicare?
- Ella Duncan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ella Duncan's NPI active?
- Yes — Ella Duncan's NPI (1386620375) is active in the NPPES registry as of the last update on 2019-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.