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Mary C O'Laughlen, PHD, FNP-BC

Family Nurse Practitioner in Manassas, VA · enumerated 2014.

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

National Provider Identifier

1306263900

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Registry record

Entity type Individual (Type 1)
Name Mary C O'Laughlen
Credential PHD, FNP-BC
Sex Female
Practice address Manassas, VA, 20109
Phone (703) 257-6969
Enumeration date Mar 21, 2014
Last updated in NPPES Mar 21, 2014

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

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024164936 (VA) Primary
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 O'Laughlen?
The National Provider Identifier (NPI) for Mary O'Laughlen is 1306263900, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mary O'Laughlen practice?
The practice location on file with NPPES is in Manassas, 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 2014-03-21.