NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart

Fuller & Spencer Fuller, PC

General Practice Dentistry in Leesburg, VA · enumerated 2015 · authorized official Llewellyn Welstead, Dentist/Owner.

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

National Provider Identifier

1669846861

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Fuller & Spencer Fuller, PC
Other name <Unavail>
Parent organization Potomac Valley Dental Care, Pllc
Practice address 706 S King St, Suite 5, Leesburg, VA, 20175
Fax (703) 771-9541
Enumeration date Nov 25, 2015
Last updated in NPPES Nov 25, 2015

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers Primary

Authorized official

Name Llewellyn Welstead
Title Dentist/Owner

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

Who is the authorized official for Fuller & Spencer Fuller, PC?
NPPES lists Llewellyn Welstead (Dentist/Owner) as the authorized official for this organization.
What is the NPI number for Fuller & Spencer Fuller, PC?
The NPI for Fuller & Spencer Fuller, PC is 1669846861, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-11-25.