NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sergio Mauricio Trejo, MFTI

Marriage & Family Therapist in Redwood City, CA · enumerated 2011 · practices at County of San Mateo.

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

National Provider Identifier

1306128681

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Sergio Mauricio Trejo
Credential MFTI
Sex Male
Practice address 727 Shasta St, Suite 4900, Redwood City, CA, 94063
Phone (650) 599-1038
Fax (650) 368-4001
Enumeration date Sep 13, 2011
Last updated in NPPES Jan 6, 2017

Taxonomy & licenses

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License 68657 (CA) Secondary
106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License LMFT97196 (CA) Primary
101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary

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 Sergio Trejo practice?
The practice location on file with NPPES is in Redwood City, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sergio Trejo?
The National Provider Identifier (NPI) for Sergio Trejo is 1306128681, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-06.