William Keith Marek, PH.D.
William Keith Marek is a Psychologist based in San Ramon, CA with over 37 years of clinical experience. Offers virtual telehealth visits.
William Keith Marek, PH.D. runs an independent psychologist practice in San Ramon, CA. With 37+ years of experience, he has been practicing in the San Ramon area. CMS Medicare data shows his patients commonly have hypertension, depression, and mood disorders.
Older · 6661dNPPES updated 2008-02-27 · verify NPI on CMS · Verify license at Medical Board of California
Contact & Location
Practice Location
105 Reflections Dr Apt. 18, San Ramon, CA 94583-4709
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages Hypertension, Depression, and Mood Disorders.
High blood pressure — a leading risk factor for heart disease and stroke
A mood disorder causing persistent sadness and loss of interest in activities
Conditions affecting emotional state, including depression and bipolar disorder
Elevated cholesterol or triglycerides that increase heart disease risk
Progressive brain disorders causing memory loss and cognitive decline
Joint inflammation causing pain, swelling, and stiffness
Excessive worry or fear that interferes with daily life
Gradual loss of kidney function over time, often linked to diabetes or hypertension
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
37 years in practice
Senior practitioner
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of 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; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Taxonomy: 103T00000X
Virtual Psychology Care With William Keith Marek
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with William Keith Marek for blood pressure monitoring, depression management, mood disorder follow-ups — no travel to San Ramon required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about William Keith Marek
NPI records show Dr. Marek as active with telehealth listed in San Ramon, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (925) 275-0294.
Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.
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Contact William Keith Marek
Practice Location
105 Reflections Dr Apt. 18, San Ramon, CA 94583-4709
This is a provider directory. Contact the office directly to schedule appointments.
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