Mental Health Therapist

Mary Loy

680 Langsdorf Dr Ste 108, Fullerton, California, 92831-3702

About Mary Loy

Mary Loy is a therapist based in Fullerton, California who is specialized in Mental Health Counselor. Active license number of Mary Loy is 18778 for Mental Health Counselor in California. Her current practice location is 680 Langsdorf Dr Ste 108, Fullerton. Patients can reach her at 714-519-3944. Mary Loy NPI number (Unique professional ID assigned by NPPES) is 1457146490.

Mary Loy 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

Mary Loy specialty, credentials, practice address, contact phone number and fax are as below. Patients can contact the office at the given phone number for appointment.

Provider Name Mary Loy
Specialization Mental Health Counselor
Gender Female
Practice Address: 680 Langsdorf Dr Ste 108,
Fullerton, CA - 92831-3702

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 Number1457146490
NPI Enumeration Date: 10 Apr, 2025
NPI Last Update On: 10 Apr, 2025

Medical Licenses:

Healthcare professionals can hold one or more medical licenses for different specialties in the same state or different states. Related medical licenses for Mary Loy are as mentioned below.

License NumberSpecializationStateStatus
18778Mental 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.

Mary Loy
680 Langsdorf Dr Ste 108,
Fullerton, CA - 92831-3702
Phone: 714-519-3944

Book an Appointment with Mary Loy

To schedule an appointment, contact Mary Loy at 680 Langsdorf Dr Ste 108, Fullerton, California or call on below stated phone number.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mary Loy:

Mary Loy 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, Mary Loy is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.
*Availability may change. Please contact the office directly to ask about appointments.

Mary Loy practices at 680 Langsdorf Dr Ste 108, Fullerton, California, 92831-3702.

To schedule an appointment with Mary Loy, please contact the office at 714-519-3944.

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