Karen Malczewski LLC
NPI 1467798959 · Clinical Social Worker · Naperville, IL
Karen Malczewski LLC is a Clinical Social Worker organization in Naperville, IL (NPI 1467798959).
Provider details
- NPI number
- 1467798959
- Entity type
- Organization
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Organization subpart
- No
- Authorized official
- Karen Malczewski, Owner(630) 267-4288
- License
- 149.009842 (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
13 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
- 2013-01-02
- Last updated
- 2013-01-02
Frequently asked questions
- What is Karen Malczewski LLC's NPI number?
- Karen Malczewski LLC's National Provider Identifier (NPI) is 1467798959, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Karen Malczewski LLC?
- Karen Malczewski LLC is classified in the NPPES registry as Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Karen Malczewski LLC located?
- Karen Malczewski LLC's practice location on file with NPPES is 120 S Webster St, Naperville, IL 60540-4479.
- What is Karen Malczewski LLC's phone number?
- The practice phone number listed in the NPPES registry for Karen Malczewski LLC is (630) 267-4288.
- Who is the authorized official for Karen Malczewski LLC?
- The authorized official listed on Karen Malczewski LLC's NPPES record is Karen Malczewski, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Karen Malczewski LLC's NPI active?
- Yes — Karen Malczewski LLC's NPI (1467798959) is active in the NPPES registry as of the last update on 2013-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.