Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Margaret S Seltzer, PT

Physical Therapist in Bethlehem, PA · enumerated 2007.

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

National Provider Identifier

1538296397

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Registry record

Entity type Individual (Type 1)

Name Margaret S Seltzer

Credential PT

Sex Female

Practice address 316 E Market St, Bethlehem, PA, 18018

Phone (610) 991-2034

Fax (610) 438-2046

Enumeration date Feb 28, 2007

Last updated in NPPES Jul 9, 2007

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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1538296397 active?

Yes, as of the latest NPPES snapshot, NPI 1538296397 is active (record last updated 2007-07-09).

How do I verify Margaret Seltzer's NPI record?

Cross-check NPI 1538296397 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.