NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Stephen J Mayo DDS & Ryan C Mayo DDS PC

General Practice Dentistry in Leesburg, VA · enumerated 2006 · authorized official Karolyn Mosher, Patient Relations Coordinator.

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

National Provider Identifier

1275632143

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Stephen J Mayo DDS & Ryan C Mayo DDS PC
Other name <Unavail>
Practice address 22 Davis Ave Sw, Leesburg, VA, 20175
Phone (703) 777-3510
Fax (703) 777-9488
Enumeration date Sep 21, 2006
Last updated in NPPES Jul 18, 2008

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers Primary

Authorized official

Name Karolyn Mosher
Title Patient Relations Coordinator
Phone (703) 777-3510

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.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-07-18. Verify at npiregistry.cms.hhs.gov.
Where is Stephen J Mayo DDS & Ryan C Mayo DDS PC located?
The practice location on file with NPPES is in Leesburg, VA.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-18.