David Dennis, LCSW
NPI 1255196911 · Clinical Social Worker · Naperville, IL
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Dennis, LCSW is a Clinical Social Worker provider in Naperville, IL (NPI 1255196911).
Provider details
- NPI number
- 1255196911
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Male
- Sole proprietor
- No
- License
- 149.026614 (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
2 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
- 2024-02-20
- Last updated
- 2024-02-20
- Certified
- 2024-02-20
Frequently asked questions
- What is David Dennis's NPI number?
- David Dennis's National Provider Identifier (NPI) is 1255196911, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Dennis's specialty?
- David Dennis is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is David Dennis located?
- David Dennis's practice location on file with NPPES is 200 E 5th Ave Ste 109, Naperville, IL 60563-3173.
- What is David Dennis's phone number?
- The practice phone number listed in the NPPES registry for David Dennis is (708) 945-8557.
- Does David Dennis accept Medicare?
- David Dennis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Dennis's NPI active?
- Yes — David Dennis's NPI (1255196911) is active in the NPPES registry as of the last update on 2024-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.