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

Thalia Guillen, ACSW

Individual provider Mental Health Counselor · NPI 1851063697

Thalia Guillen, ACSW is a Mental Health Counselor in Merced, California. Works from 10 locations. Licensed in California.

Licensed in
CA
In the registry since
2021
Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1640 N St
Merced, CA 95340-4657
Phone: (209) 381-4547
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (9)

  • 13071 E. Le Grand Road, Le Grand, CA 95333 — (209) 389-4515
  • 9525 E. Broderick Street, Planada, CA 95365 — (209) 382-0272
  • 161 S. Plainsburg Road, Planada, CA 95365 — (209) 382-0768
  • 9722 Haskell Avenue, Planada, CA 95365 — (209) 382-0756
  • 7160 W. Walnut Avenue, Winton, CA 95388 — (209) 357-6182
  • 7265 Almond Ave, Winton, CA 95388-9325 — (209) 357-6180
  • 6981 Chestnut Lane, Winton, CA 95388 — (209) 357-6891
  • 7000 N. Center Street, Winton, CA 95388-9399 — (209) 357-6175
  • 6300 Cypress Ave, Winton, CA 95388-9547 — (209) 357-6189

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X · Licence 103266 (CA)

Record details

NPI number1851063697
Entity typeIndividual (Type 1)
GenderFemale
Credentials ACSW
Sole proprietorNo
NPI enumeratedSeptember 30, 2021
Last updated in NPPESNovember 19, 2025
Certification dateNovember 19, 2025

Other providers in Merced