Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karen Martinchek, P.T.

Physical Therapist in Dundalk, MD · enumerated 2015.

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

National Provider Identifier

1659766897

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Registry record

Entity type Individual (Type 1)

Name Karen Martinchek

Credential P.T.

Sex Female

Practice address 1576 Merritt Blvd, #7, Dundalk, MD, 21222

Phone (410) 650-2145

Enumeration date Apr 4, 2015

Last updated in NPPES Feb 20, 2024

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 18132 (MD) 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

Where does Karen Martinchek practice?

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

What is the NPI number for Karen Martinchek?

The National Provider Identifier (NPI) for Karen Martinchek is 1659766897, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-02-20.