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Mary Catherine Darr, PT

Physical Therapist in Falls Church, VA · enumerated 2013.

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

National Provider Identifier

1275977852

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Registry record

Entity type Individual (Type 1)
Name Mary Catherine Darr
Credential PT
Sex Female
Practice address 431 Park Ave Ste 300, Falls Church, VA, 22046
Phone (703) 532-6210
Enumeration date Apr 25, 2013
Last updated in NPPES Apr 25, 2013

Taxonomy & licenses

225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 2305203899 (VA) 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.

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Frequently asked questions

What is the NPI number for Mary Darr?
The National Provider Identifier (NPI) for Mary Darr is 1275977852, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary Darr practice?
The practice location on file with NPPES is in Falls Church, VA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-04-25.