Psychiatrist

Dr. William Marion Barnard, M.D.

1600 Los Gamos Dr, Suite 300, San Rafael, California, 94903-1806

About Dr. William Marion Barnard

Dr. William Marion Barnard is a psychiatrist based in San Rafael, California who is specialized in Psychiatry. Active license number of Dr. William Marion Barnard is C40925 for Psychiatry in California. His current practice location is 1600 Los Gamos Dr, Suite 300, San Rafael. Patients can contact him at 415-491-7231 or can fax him at 415-472-8184. Dr. William Marion Barnard, M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1477602449.

Dr. William Marion Barnard specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Practice Information

Dr. William Marion Barnard'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. William Marion Barnard
Specialization Psychiatry
Credentials M.D.
Gender Male
Practice Address: 1600 Los Gamos Dr, Suite 300
San Rafael, CA - 94903-1806
Fax 415-472-8184

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 Number1477602449
NPI Enumeration Date: 09 Jan, 2007
NPI Last Update On: 08 Jul, 2007

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. William Marion Barnard are as mentioned below.

License NumberSpecializationStateStatus
C40925Psychiatry 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. William Marion Barnard
2030 Vallejo St, Apt 303
San Francisco, CA - 94123-4864
Phone: 415-563-8472
Fax: 415-563-8472

Book an Appointment with Dr. William Marion Barnard

To schedule an appointment, contact Dr. William Marion Barnard at 1600 Los Gamos Dr, Suite 300, San Rafael, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. William Marion Barnard:

Dr. William Marion Barnard is a psychiatrist specializing in Psychiatry. He specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

Yes, Dr. William Marion Barnard 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. William Marion Barnard practices at 1600 Los Gamos Dr, Suite 300, San Rafael, California, 94903-1806.

To schedule an appointment with Dr. William Marion Barnard, please contact the office at 415-491-7231.

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