Mental Health Therapist

Thalia Guillen, ACSW

1640 N St, Merced, California, 95340-4657

About Thalia Guillen

Thalia Guillen is a therapist based in Merced, California who is specialized in Mental Health Counselor. Active license number of Thalia Guillen is 103266 for Mental Health Counselor in California. Her current practice location is 1640 N St, Merced. Patients can reach her at 209-381-4547. Thalia Guillen is ACSW in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1851063697.

Thalia Guillen is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Practice Information

Thalia Guillen speciality, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Thalia Guillen
Specialization Mental Health Counselor
Credentials ACSW
Gender Female
Practice Address: 1640 N St,
Merced, CA - 95340-4657

Professional Identification Codes

NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). NPI details are as mentioned below.

NPI Number1851063697
NPI Enumeration Date: 30 Sep, 2021
NPI Last Update On: 19 Nov, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Thalia Guillen are as mentioned below.

License NumberSpecializationStateStatus
103266Mental Health Counselor CaliforniaPrimary

Mailing Address

Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned Practice address.

Thalia Guillen
1640 N St,
Merced, CA - 95340-4657
Phone: 209-381-4547

Book an Appointment with Thalia Guillen

To schedule an appointment, contact Thalia Guillen at 1640 N St, Merced, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Thalia Guillen:

Thalia Guillen is a therapist specializing in Mental Health Counselor. She is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.

Yes, Thalia Guillen is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Thalia Guillen practices at 1640 N St, Merced, California, 95340-4657.

To schedule an appointment with Thalia Guillen, please contact the office at 209-381-4547.

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**Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 14 September, 2026.