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Landmark Therapy Group

Professional Counselor in Crystal Lake, IL · enumerated 2022 · authorized official Jason Sterwerf, Owner.

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

National Provider Identifier

1942922489

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Registry record

Entity type Organization (Type 2)
Legal business name Landmark Therapy Group
Practice address 760 Mcardle Dr Ste G, Crystal Lake, IL, 60014
Phone (815) 526-0676
Enumeration date Sep 12, 2022
Last updated in NPPES Nov 11, 2024

Taxonomy & classification

101YP2500X Professional Counselor Behavioral Health & Social Service Providers Primary

Authorized official

Name Jason Sterwerf
Title Owner
Phone (815) 321-3300

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.

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Frequently asked questions

Who is the authorized official for Landmark Therapy Group?
NPPES lists Jason Sterwerf (Owner) as the authorized official for this organization.
What is the NPI number for Landmark Therapy Group?
The NPI for Landmark Therapy Group is 1942922489, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-11.