Psychiatrist

Dr. Mark Williams, M.D

2008 N Garey Ave, Pomona, California, 91767-2722

About Dr. Mark Williams

Dr. Mark Williams is a psychiatrist based in Pomona, California who is specialized in Psychiatry. Active license number of Dr. Mark Williams is A74958 for Psychiatry in California. His current practice location is 2008 N Garey Ave, Pomona. Patients can contact him at 909-623-6131. Dr. Mark Williams, M.D, specializes in Psychiatry and his NPI number (Unique professional ID assigned by NPPES) is 1306919584.

Dr. Mark Williams 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. Mark Williams'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. Mark Williams
Specialization Psychiatry
Credentials M.D
Gender Male
Practice Address: 2008 N Garey Ave,
Pomona, CA - 91767-2722

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 Number1306919584
NPI Enumeration Date: 16 Nov, 2006
NPI Last Update On: 30 Jan, 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. Mark Williams are as mentioned below.

License NumberSpecializationStateStatus
A74958Psychiatry 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. Mark Williams
280 S Euclid Ave Apt 125,
Pasadena, CA - 91101-2788
Phone: 909-623-6131

Book an Appointment with Dr. Mark Williams

To schedule an appointment, contact Dr. Mark Williams at 2008 N Garey Ave, Pomona, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. Mark Williams:

Dr. Mark Williams 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. Mark Williams 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. Mark Williams practices at 2008 N Garey Ave, Pomona, California, 91767-2722.

To schedule an appointment with Dr. Mark Williams, please contact the office at 909-623-6131.

Reviews & Feedback

Have you visited Dr. Mark Williams? Share your experience to help others looking for a psychiatrist in Pomona, CA.

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