Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Gail W Mason, MSW/LSW
Social Worker in Fredericktown, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497736516
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Registry record
Entity type Individual (Type 1)
Name Miss Gail W Mason
Credential MSW/LSW
Sex Female
Practice address 1070 Old National Pike, Fredericktown, PA, 15333
Phone (724) 632-6801
Enumeration date Nov 7, 2005
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License SW007020L (PA) Primary
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.
Frequently asked questions
What is the NPI number for Gail Mason?
The National Provider Identifier (NPI) for Gail Mason is 1497736516, a Type 1 (individual) record in the CMS NPPES registry.
Where does Gail Mason practice?
The practice location on file with NPPES is in Fredericktown, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.