Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Katharine L Gaj, DPT, OCS, COMT, ATC

Orthopedic Physical Therapist in Elkhart, IN · enumerated 2013.

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

National Provider Identifier

1679916506

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Registry record

Entity type Individual (Type 1)

Name Katharine L Gaj

Credential DPT, OCS, COMT, ATC

Sex Female

Practice address 200 E Jackson Blvd Ste 150, Elkhart, IN, 46516

Phone (574) 389-5558

Fax (574) 389-5559

Enumeration date Apr 10, 2013

Last updated in NPPES Apr 10, 2026

Taxonomy & licenses

2251X0800X Orthopedic Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 05006852A (IN) Primary

DPT · Doctor of Physical Therapy: A physical therapist holding the clinical doctorate now standard for the profession. About the DPT credential

Other identifiers

Identifier	Type	State	Issuer
300126749	Medicaid	IN	-

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 specialty is Katharine Gaj?

Katharine Gaj is registered in NPPES with the primary taxonomy of Orthopedic Physical Therapist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-10.