Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Sage Williams

Marriage & Family Therapist in Alameda, CA · enumerated 2014.

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

National Provider Identifier

1831505247

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Sage Williams

Sex Male

Practice address 1242 Park St Ste C, Alameda, CA, 94501

Phone (510) 521-3500

Enumeration date Jul 7, 2014

Last updated in NPPES Jul 9, 2024

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 104078 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 122154 (CA) 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

Is NPI 1831505247 active?

Yes, as of the latest NPPES snapshot, NPI 1831505247 is active (record last updated 2024-07-09).

How do I verify Sage Williams's NPI record?

Cross-check NPI 1831505247 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-09.