Psychologist | Clinical Psychology

Dr. Mary Marth, PSY.D.

2500 Fairmont Drive, Guidance Clinic, San Leandro, California, 94578

About Dr. Mary Marth

Dr. Mary Marth is a psychologist based in San Leandro, California who is specialized in Clinical Psychology. Active license number of Dr. Mary Marth is PSY22188 for Clinical Psychology in California. Her current practice location is 2500 Fairmont Drive, Guidance Clinic, San Leandro. Patients can contact her at 510-667-3000 or can fax her at 510-667-3005. Dr. Mary Marth, PSY.D., specializes in Clinical Psychology and her NPI number (Unique professional ID assigned by NPPES) is 1831380146.

Dr. Mary Marth is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. Mary Marth's specialty, credentials, practice address, contact phone number and fax are as below. Patients can call on the below given phone number for appointment.

Provider Name Dr. Mary Marth
Specialization Clinical Psychology
Credentials PSY.D.
Gender Female
Practice Address: 2500 Fairmont Drive, Guidance Clinic
San Leandro, CA - 94578
Fax 510-667-3005

Professional Identification Codes

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

NPI Number1831380146
NPI Enumeration Date: 05 Aug, 2007
NPI Last Update On: 26 Sep, 2008

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 Dr. Mary Marth are as mentioned below.

License NumberSpecializationStateStatus
PSY22188Clinical Psychology CaliforniaPrimary

Mailing Address

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

Dr. Mary Marth
2500 Fairmont Drive, Guidance Clinic
San Leandro, CA - 94578

Book an Appointment with Dr. Mary Marth

To schedule an appointment, contact Dr. Mary Marth at 2500 Fairmont Drive, Guidance Clinic, San Leandro, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Mary Marth:

Dr. Mary Marth is a psychologist specializing in Clinical Psychology. She is a mental health professional with highly specialized training in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Her main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that she can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. Mary Marth 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.

Dr. Mary Marth practices at 2500 Fairmont Drive, Guidance Clinic, San Leandro, California, 94578.

To schedule an appointment with Dr. Mary Marth, please contact the office at 510-667-3000.

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