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

Mr. Jacob Brown, MA

Marriage & Family Therapist in Sausalito, CA · enumerated 2017.

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

National Provider Identifier

1831616994

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Registry record

Entity type Individual (Type 1)

Name Mr. Jacob Brown

Credential MA

Sex Male

Practice address Sausalito, CA, 94965

Phone (415) 845-1940

Enumeration date Aug 29, 2017

Last updated in NPPES Dec 5, 2023

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

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 141837 (CA) Primary

Other identifiers

Identifier	Type	State	Issuer
A0901989	Other	CA	CALIFORNIA DRIVERS LICENSE

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 do I verify Jacob Brown's NPI record?

Cross-check NPI 1831616994 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1831616994 active?

Yes, as of the latest NPPES snapshot, NPI 1831616994 is active (record last updated 2023-12-05).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-12-05.