Mental Health Therapist

Mrs. Mary Dianne Thomas, M.A.

1777 Borel Place, Suite 509, San Mateo, California, 94402-2851

About Mrs. Mary Dianne Thomas

Mrs. Mary Dianne Thomas is a therapist based in San Mateo, California who is specialized in Mental Health Counselor. Active license number of Mrs. Mary Dianne Thomas is MFC25893 for Mental Health Counselor in California. Her current practice location is 1777 Borel Place, Suite 509, San Mateo. Patients can reach her at 650-349-0461 or can fax her at 650-570-7779. Mrs. Mary Dianne Thomas is M.A. in Mental Health Counselor and her NPI number (Unique professional ID assigned by NPPES) is 1659500171.

Mrs. Mary Dianne Thomas 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

Mrs. Mary Dianne Thomas 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 Mrs. Mary Dianne Thomas
Specialization Mental Health Counselor
Credentials M.A.
Gender Female
Practice Address: 1777 Borel Place, Suite 509
San Mateo, CA - 94402-2851
Fax 650-570-7779

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 Number1659500171
NPI Enumeration Date: 06 Jul, 2009
NPI Last Update On: 06 Jul, 2009

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 Mrs. Mary Dianne Thomas are as mentioned below.

License NumberSpecializationStateStatus
MFC25893Mental 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.

Mrs. Mary Dianne Thomas
1777 Borel Place, Suite 509
San Mateo, CA - 94402-2851
Phone: 650-349-3903
Fax: 650-570-7779

Book an Appointment with Mrs. Mary Dianne Thomas

To schedule an appointment, contact Mrs. Mary Dianne Thomas at 1777 Borel Place, Suite 509, San Mateo, California or call on below stated phone number.

Call to Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Mrs. Mary Dianne Thomas:

Mrs. Mary Dianne Thomas 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, Mrs. Mary Dianne Thomas is currently accepting new patients. To schedule an appointment, contact the office directly and schedule an appointment.

Mrs. Mary Dianne Thomas practices at 1777 Borel Place, Suite 509, San Mateo, California, 94402-2851.

To schedule an appointment with Mrs. Mary Dianne Thomas, please contact the office at 650-349-0461.

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