Psychiatrist

John Williams Evans, MD

670 W Napa St, Sonoma, California, 95476-6437

About John Williams Evans

John Williams Evans is a psychiatrist based in Sonoma, California who is specialized in Psychiatry. Active license number of John Williams Evans is A23864 for Psychiatry in California. His current practice location is 670 W Napa St, Sonoma. Patients can contact him at 707-933-9757 or can fax him at 707-939-0688. John Williams Evans, MD, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1093733073.

John Williams Evans 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

John Williams Evans'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 John Williams Evans
Specialization Psychiatry
Credentials MD
Gender Male
Practice Address: 670 W Napa St,
Sonoma, CA - 95476-6437
Fax 707-939-0688

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 Number1093733073
NPI Enumeration Date: 17 Jul, 2006
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 John Williams Evans are as mentioned below.

License NumberSpecializationStateStatus
A23864Psychiatry CaliforniaPrimary

Mailing Address

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

John Williams Evans
670 W Napa St,
Sonoma, CA - 95476-6437
Phone: 707-933-9757
Fax: 707-939-0688

Book an Appointment with John Williams Evans

To schedule an appointment, contact John Williams Evans at 670 W Napa St, Sonoma, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about John Williams Evans:

John Williams Evans 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, John Williams Evans 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.

John Williams Evans practices at 670 W Napa St, Sonoma, California, 95476-6437.

To schedule an appointment with John Williams Evans, please contact the office at 707-933-9757.

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