Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Margaret Mary Siebers, PT

Physical Therapist in Geneseo, NY · enumerated 2008.

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

National Provider Identifier

1083859144

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Registry record

Entity type Individual (Type 1)

Name Ms. Margaret Mary Siebers

Credential PT

Sex Female

Practice address 1 College Cir, Suny Geneseo - Holcomb Building, Geneseo, NY, 14454

Phone (585) 245-5688

Fax (585) 245-5685

Enumeration date Dec 3, 2008

Last updated in NPPES Dec 3, 2008

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 009281-1 (NY) 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

What is the NPI number for Margaret Siebers?

The National Provider Identifier (NPI) for Margaret Siebers is 1083859144, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Siebers practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-12-03.