Psychologist | Clinical Psychology

Dr. William L Zahn, PSY.D.

1335 Stanford Ave, Emeryville, California, 94608-2536

About Dr. William L Zahn

Dr. William L Zahn is a psychologist based in Emeryville, California who is specialized in Clinical Psychology. Active license number of Dr. William L Zahn is PSY24256 for Clinical Psychology in California. His current practice location is 1335 Stanford Ave, Emeryville. Patients can contact him at 909-227-1399. Dr. William L Zahn, PSY.D., specializes in Clinical Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1922382894.

Dr. William L Zahn 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Practice Information

Dr. William L Zahn'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 L Zahn
Specialization Clinical Psychology
Credentials PSY.D.
Gender Male
Practice Address: 1335 Stanford Ave,
Emeryville, CA - 94608-2536

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 Number1922382894
NPI Enumeration Date: 10 Oct, 2011
NPI Last Update On: 12 Jan, 2015

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 L Zahn are as mentioned below.

License NumberSpecializationStateStatus
PSY24256Clinical 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. William L Zahn
1335 Stanford Ave,
Emeryville, CA - 94608-2536
Phone: 909-227-1399

Book an Appointment with Dr. William L Zahn

To schedule an appointment, contact Dr. William L Zahn at 1335 Stanford Ave, Emeryville, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. William L Zahn:

Dr. William L Zahn is a psychologist specializing in Clinical Psychology. He 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). His main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that he can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.

Yes, Dr. William L Zahn 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 L Zahn practices at 1335 Stanford Ave, Emeryville, California, 94608-2536.

To schedule an appointment with Dr. William L Zahn, please contact the office at 909-227-1399.

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