Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kenneth Grant Mason, M.D.
Surgery Physician in Winchester, VA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1336174705
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Kenneth Grant Mason
Credential M.D.
Sex Male
Practice address 400 Campus Blvd Ste 220, Winchester, VA, 22601
Phone (540) 536-5466
Fax (540) 536-5475
Enumeration date Jul 12, 2006
Last updated in NPPES Mar 2, 2021
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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.
Frequently asked questions
Where does Kenneth Mason practice?
The practice location on file with NPPES is in Winchester, VA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Kenneth Mason?
The National Provider Identifier (NPI) for Kenneth Mason is 1336174705, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-03-02.