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Molly Chaloner Mastoras, LPC

Mental Health Counselor in South Riding, VA · enumerated 2009.

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

National Provider Identifier

1043459621

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Registry record

Entity type Individual (Type 1)
Name Molly Chaloner Mastoras
Credential LPC
Sex Female
Practice address 43130 Amberwood Plz, Suite 140, South Riding, VA, 20152
Phone (703) 348-0030
Fax (703) 542-7770
Enumeration date Feb 5, 2009
Last updated in NPPES Nov 20, 2016

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 0701004457 (VA) Primary
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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

Where does Molly Mastoras practice?
The practice location on file with NPPES is in South Riding, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Molly Mastoras?
The National Provider Identifier (NPI) for Molly Mastoras is 1043459621, 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 2016-11-20.