Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Guillermo R Trejo, MAMFT

Individual provider Mental Health Counselor · NPI 1316802218

Guillermo R Trejo, MAMFT is a Mental Health Counselor in San Antonio, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2025

Practice location Address checks out

6738 Manassas Dr
San Antonio, TX 78240-2843
Phone: (210) 642-9483
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 98386 (TX)

Record details

NPI number1316802218
Entity typeIndividual (Type 1)
GenderMale
Credentials MAMFT
Sole proprietorYes
NPI enumeratedDecember 22, 2025
Last updated in NPPESDecember 22, 2025
Certification dateDecember 22, 2025

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