Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kathryn Dumortier, PTA

Physical Therapy Assistant in Portage, IN · enumerated 2016 · practices at Lakeshore Bone & Joint Institute, PC.

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

National Provider Identifier

1659730455

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Registry record

Entity type Individual (Type 1)

Name Kathryn Dumortier

Credential PTA

Sex Female

Practice address 3691 Willowcreek Rd, Suite 100, Portage, IN, 46368

Phone (219) 759-4380

Fax (219) 759-1989

Enumeration date Feb 22, 2016

Last updated in NPPES Feb 22, 2016

Taxonomy & licenses

225200000X Physical Therapy Assistant Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 06003607A (IN) 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 Kathryn Dumortier?

Kathryn Dumortier 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 2016-02-22.