NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

William V Silverstone, LISW

Social Worker in Boardman, OH · enumerated 2019 · practices at Southwoods Counseling LLC.

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

National Provider Identifier

1861035354

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name William V Silverstone
Credential LISW
Sex Male
Practice address Boardman, OH, 44512
Phone (330) 953-4451
Enumeration date Oct 28, 2019
Last updated in NPPES Nov 4, 2024

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License I.2203571 (OH) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for William Silverstone?
The National Provider Identifier (NPI) for William Silverstone is 1861035354, a Type 1 (individual) record in the CMS NPPES registry.
Where does William Silverstone practice?
The practice location on file with NPPES is in Boardman, OH. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-11-04.