Psychologist | General Psychology | 37+ years experience

Dr. William Keith Marek, PH.D.

105 Reflections Dr, Apt. 18, San Ramon, California, 94583-4709

About Dr. William Keith Marek

Dr. William Keith Marek is a psychologist based in San Ramon, California with 37 years of experience in General Psychology. He completed his graduation in 1989. He accepts the Medicare-approved amount. Patients will not be billed for any more than the Medicare deductible and coinsurance. Active license number of Dr. William Keith Marek is PSY 14791 for General Psychology in California. His current practice location is 105 Reflections Dr, Apt. 18, San Ramon. Patients can contact him at 925-275-0294 or can fax him at 925-426-0094. Dr. William Keith Marek, PH.D., specializes in General Psychology and his NPI number (Unique professional ID assigned by NPPES) is 1851560544.

Dr. William Keith Marek is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Practice Information

Dr. William Keith Marek'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 Keith Marek
Specialization General Psychology
Credentials PH.D.
Accepts Medicare Assignment Yes
Experience 37+ years
Graduation Year 1989
Gender Male
Practice Address: 105 Reflections Dr, Apt. 18
San Ramon, CA - 94583-4709
Fax 925-426-0094

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.

PAC ID 6709965486
Enrollment ID I20080506000735
NPI Number1851560544
NPI Enumeration Date: 27 Feb, 2008
NPI Last Update On: 27 Feb, 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. William Keith Marek are as mentioned below.

License NumberSpecializationStateStatus
PSY 14791General 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 Keith Marek
105 Reflections Dr, Apt. 18
San Ramon, CA - 94583-4709
Phone: 925-275-0294
Fax: 925-426-0094

Book an Appointment with Dr. William Keith Marek

To schedule an appointment, contact Dr. William Keith Marek at 105 Reflections Dr, Apt. 18, San Ramon, California or call the phone number listed below.

Book an Appointment

Frequently Asked Questions

Below are some commonly asked questions about Dr. William Keith Marek:

Dr. William Keith Marek is a psychologist specializing in General Psychology. He is specialized in psychological testing and evaluating or assessing patient's personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning. Accordingly, he performs counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy. He can diagnose and treat mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability by psycheducational evaluation, therapy, remediation, and consultation.

Dr. William Keith Marek has approximately 37 years of experience in General Psychology.

Yes, Dr. William Keith Marek accepts Medicare assignment, meaning the provider participates in Medicare and accepts Medicare-approved amounts for eligible services.

Yes, Dr. William Keith Marek 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 Keith Marek practices at 105 Reflections Dr, Apt. 18, San Ramon, California, 94583-4709.

To schedule an appointment with Dr. William Keith Marek, please contact the office at 925-275-0294.

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