Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Siegfried Sirilan, PT

Physical Therapist in Chicago, IL · enumerated 2010.

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

National Provider Identifier

1821318304

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Registry record

Entity type Individual (Type 1)

Name Mr. Siegfried Sirilan

Credential PT

Sex Male

Practice address 4538 N Beacon St, Chicago, IL, 60640

Phone (773) 561-4134

Enumeration date Jun 7, 2010

Last updated in NPPES Jan 3, 2011

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers 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.

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Frequently asked questions

How do I verify Siegfried Sirilan's NPI record?

Cross-check NPI 1821318304 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1821318304 active?

Yes, as of the latest NPPES snapshot, NPI 1821318304 is active (record last updated 2011-01-03).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-01-03.