Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sieglinde Liu, P.T.

Physical Therapist in Fairfield, CT · enumerated 2006.

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

National Provider Identifier

1629080783

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Registry record

Entity type Individual (Type 1)

Name Sieglinde Liu

Credential P.T.

Sex Female

Practice address Fairfield, CT, 06824

Phone (203) 256-4733

Fax (203) 256-4736

Enumeration date Aug 13, 2006

Last updated in NPPES Jan 7, 2016

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 004601 (CT) Primary

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

Other identifiers

Identifier	Type	State	Issuer
080004601CT01	Other	CT	ANTHEM BC/BS
2V1326	Other	CT	HEALTH NET

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

Where does Sieglinde Liu practice?

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

What is the NPI number for Sieglinde Liu?

The National Provider Identifier (NPI) for Sieglinde Liu is 1629080783, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-01-07.