Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Miss Merna Elias Katout

Marriage & Family Therapist in San Mateo, CA · enumerated 2017.

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

National Provider Identifier

1649786856

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Registry record

Entity type Individual (Type 1)

Name Miss Merna Elias Katout

Sex Female

Practice address 2015 Pioneer Ct, San Mateo, CA, 94403

Phone (650) 348-6603

Enumeration date Dec 26, 2017

Last updated in NPPES Aug 30, 2022

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 4038 (CA) Secondary

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License 99979 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 99979 (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

How do I verify Merna Katout's NPI record?

Cross-check NPI 1649786856 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1649786856 active?

Yes, as of the latest NPPES snapshot, NPI 1649786856 is active (record last updated 2022-08-30).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-30.