NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen N Kallmann

Social Worker in Plainfield, IL · enumerated 2023.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1538845060

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Karen N Kallmann
Sex Female
Practice address 24047 W Lockport St Ste 201g, Plainfield, IL, 60544
Fax (630) 527-8877
Enumeration date Jun 27, 2023
Last updated in NPPES Jun 27, 2023

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Primary

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Karen Kallmann?
The National Provider Identifier (NPI) for Karen Kallmann is 1538845060, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Kallmann practice?
The practice location on file with NPPES is in Plainfield, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-06-27.