Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ian Lewis, M.S.

Speech-Language Pathologist in Surprise, AZ · enumerated 2012.

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

National Provider Identifier

1356601157

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Registry record

Entity type Individual (Type 1)

Name Ian Lewis

Credential M.S.

Sex Male

Practice address 16121 N 170th Ave, Surprise, AZ, 85388

Phone (509) 710-3507

Enumeration date May 25, 2012

Last updated in NPPES May 25, 2012

Taxonomy & licenses

235Z00000X Speech-Language Pathologist Speech, Language and Hearing Service Providers · License TSLP7773 (AZ) 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

Is NPI 1356601157 active?

Yes, as of the latest NPPES snapshot, NPI 1356601157 is active (record last updated 2012-05-25).

How do I verify Ian Lewis's NPI record?

Cross-check NPI 1356601157 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 2012-05-25.