Psychiatrist

William Byerley, M.D.

401 Parnassus Ave, San Francisco, California, 94143-2211

About William Byerley

William Byerley is a psychiatrist based in San Francisco, California who is specialized in Psychiatry. Active license number of William Byerley is C41578 for Psychiatry in California. His current practice location is 401 Parnassus Ave, San Francisco. Patients can contact him at 415-476-7432 or can fax him at 415-476-7320. William Byerley, M.D., specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1730490418.

William Byerley 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

William Byerley'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 William Byerley
Specialization Psychiatry
Credentials M.D.
Gender Male
Practice Address: 401 Parnassus Ave,
San Francisco, CA - 94143-2211
Fax 415-476-7320

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 Number1730490418
NPI Enumeration Date: 28 Jun, 2010
NPI Last Update On: 17 Sep, 2010

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 William Byerley are as mentioned below.

License NumberSpecializationStateStatus
C41578Psychiatry CaliforniaPrimary

Mailing Address

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

William Byerley
401 Parnassus Ave,
San Francisco, CA - 94143-2211
Phone: 415-476-7432
Fax: 415-476-7320

Book an Appointment with William Byerley

To schedule an appointment, contact William Byerley at 401 Parnassus Ave, San Francisco, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about William Byerley:

William Byerley 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, William Byerley 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.

William Byerley practices at 401 Parnassus Ave, San Francisco, California, 94143-2211.

To schedule an appointment with William Byerley, please contact the office at 415-476-7432.

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