NPI Portal NPI Lookup & Verification

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

Tierra Lin Kastner

Physical Therapy Assistant in Saugus, MA · enumerated 2026 · practices at Chestnut Woods Operator LLC.

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

National Provider Identifier

1982536371

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Registry record

Entity type Individual (Type 1)
Name Tierra Lin Kastner
Sex Female
Practice address Saugus, MA, 01906
Phone (781) 233-8123
Enumeration date Jun 1, 2026
Last updated in NPPES Jun 1, 2026

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

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTA4508 (AR) Secondary
225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License PTA28101 (MA) 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.

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Frequently asked questions

Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Tierra Kastner?
Tierra Kastner is registered in NPPES with the primary taxonomy of Physical Therapy Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-01.