Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Landmark Counseling & Mediation LLC

Mental Health Counselor in Warrenville, IL · enumerated 2016 · authorized official Sandra Krummenacher, Owner.

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

National Provider Identifier

1871949230

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Landmark Counseling & Mediation LLC

Practice address 28379 Davis Pkwy, Warrenville, IL, 60555

Phone (630) 300-4221

Enumeration date May 4, 2016

Last updated in NPPES May 4, 2016

Taxonomy & classification

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 180007180 (IL) Primary

Authorized official

Name Sandra Krummenacher

Title Owner

Phone (630) 300-4221

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

Where is Landmark Counseling & Mediation LLC located?

The practice location on file with NPPES is in Warrenville, IL.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2016-05-04. Verify at npiregistry.cms.hhs.gov.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-05-04.