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

William M Riley

Clinical Social Worker in Geneva, NY · enumerated 2008.

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

National Provider Identifier

1831350537

Verified

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Registry record

Entity type Individual (Type 1)

Name William M Riley

Sex Male

Practice address Geneva, NY, 14456

Phone (315) 789-1442

Enumeration date Jun 24, 2008

Last updated in NPPES Jun 24, 2008

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License R041371-1 (NY) 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

Where does William Riley practice?

The practice location on file with NPPES is in Geneva, NY. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for William Riley?

The National Provider Identifier (NPI) for William Riley is 1831350537, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-06-24.