Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Samuel F Walstrum, PT, DPT, ATC

Physical Therapist in Lake Zurich, IL · enumerated 2017.

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

National Provider Identifier

1285144931

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Registry record

Entity type Individual (Type 1)

Name Dr. Samuel F Walstrum

Credential PT, DPT, ATC

Sex Male

Practice address 1286 Tracie Dr, Lake Zurich, IL, 60047

Phone (224) 633-6405

Enumeration date Oct 9, 2017

Last updated in NPPES Aug 4, 2021

Taxonomy & licenses

2255A2300X Athletic Trainer Respiratory, Developmental, Rehabilitative and Restorative Service Providers Secondary

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 28560 (MD) Primary

PT · Physical Therapist: A licensed movement specialist treating injury and disability through exercise and rehabilitation. About the PT credential

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

Is NPI 1285144931 active?

Yes, as of the latest NPPES snapshot, NPI 1285144931 is active (record last updated 2021-08-04).

How do I verify Samuel Walstrum's NPI record?

Cross-check NPI 1285144931 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-04.