Deann Johnston, LCSW
NPI 1639358922 · Clinical Social Worker · Naperville, IL
Deann Johnston, LCSW is a Clinical Social Worker provider in Naperville, IL (NPI 1639358922).
Provider details
- NPI number
- 1639358922
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
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
18 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2007-11-02
- Last updated
- 2007-11-02
Frequently asked questions
- What is Deann Johnston's NPI number?
- Deann Johnston's National Provider Identifier (NPI) is 1639358922, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Deann Johnston's specialty?
- Deann Johnston is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Deann Johnston located?
- Deann Johnston's practice location on file with NPPES is 1288 Rickert Dr, Naperville, IL 60540-0951.
- What is Deann Johnston's phone number?
- The practice phone number listed in the NPPES registry for Deann Johnston is (630) 428-7890.
- Is Deann Johnston's NPI active?
- Yes — Deann Johnston's NPI (1639358922) is active in the NPPES registry as of the last update on 2007-11-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.