Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stephen Michael Lassig, PTA

Physical Therapy Assistant in San Marcos, TX · enumerated 2025.

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

National Provider Identifier

1164399093

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Registry record

Entity type Individual (Type 1)

Name Stephen Michael Lassig

Credential PTA

Sex Male

Practice address 1301 Ranch Road 12, San Marcos, TX, 78666

Phone (512) 353-8979

Enumeration date Oct 23, 2025

Last updated in NPPES Oct 23, 2025

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2184169 (TX) 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.

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Frequently asked questions

Where does Stephen Lassig practice?

The practice location on file with NPPES is in San Marcos, TX. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Stephen Lassig?

The National Provider Identifier (NPI) for Stephen Lassig is 1164399093, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-23.