Preventive Care & Wellness
Annual physicals, immunizations, cancer screenings, and personalized wellness plans designed to keep you healthy and catch problems before they start.
Castro Valley, California
Expert Internal Medicine,
Delivered with Purpose
Dr. Nabil K. Abudayeh combines decades of clinical experience with a genuinely personal approach — treating each patient as an individual, not a schedule. From managing chronic conditions to designing preventive care plans, every visit is tailored to you.
Board-Certified Internal Medicine
Compassionate, Patient-Centered Care
Accepting New Patients
Our Services
Comprehensive Care for
Every Stage of Life
We provide a full spectrum of internal medicine services, from routine preventive screenings to the management of complex chronic conditions — all under one roof.
Chronic Disease Management
Expert, ongoing management of diabetes, hypertension, heart disease, thyroid disorders, and other chronic conditions with individualized treatment plans.
Acute Illness Treatment
Same-day or next-day appointments for infections, injuries, and urgent health concerns — because when you need care, you need it now.
Diagnostics & Laboratory Services
On-site laboratory testing and diagnostic interpretation for faster results and more timely, informed treatment decisions.
Cardiovascular Health
Comprehensive heart health evaluations, blood pressure management, lipid screening, and preventive cardiology tailored to your risk profile.
Metabolic & Endocrine Care
Thorough evaluation and management of thyroid disorders, metabolic syndrome, hormonal imbalances, and related endocrine conditions.
About Dr. Abudayeh
A Physician Who
Truly Listens
Dr. Nabil K. Abudayeh practices internal medicine with a philosophy rooted in one simple conviction: every patient deserves a doctor who takes the time to understand their full health picture — not just their symptoms.
Based in Castro Valley, Dr. Abudayeh has built a practice on trust, thoroughness, and genuine compassion. Whether you are managing a long-term condition, navigating a new diagnosis, or simply seeking a physician who treats you with respect and attention, you will find that here.
His approach combines the latest evidence-based medicine with the timeless art of clinical judgment — ensuring you receive care that is both scientifically sound and personally meaningful.
Evidence-Based Medicine
Patient-Centered Approach
Continuity of Care
Compassionate Attention
Patient Information
What to Expect at
Your First Visit
We want your experience with us to be as comfortable and straightforward as possible. Here is what you need to know before your appointment.
Insurance & Payments
We accept a wide range of major insurance plans and are happy to verify your coverage before your visit. Please contact our office to confirm your plan is accepted.
New Patient Intake
Plan for approximately 45–60 minutes during your first visit. You will complete a comprehensive health history form and have a thorough consultation with Dr. Abudayeh.
What to Bring
Please bring a valid photo ID, your insurance card, a current list of all medications and supplements, and any relevant medical records or test results from other providers.
Appointment Policies
We ask for at least 24 hours' notice if you need to reschedule. Late cancellations or no-shows may be subject to a fee. Same-day sick visits are available when possible.
Get in Touch
We Are Here to
Help You
Whether you have a question about our services, need to schedule an appointment, or want to learn more about Dr. Abudayeh's practice, we welcome your call or message.
Phone
(510) 886-6878
Address
20700 Lake Chabot Rd
Castro Valley, CA 94546-5401
Castro Valley, CA 94546-5401
Office Hours
Monday – Friday: 9:00 AM – 5:00 PM
Saturday – Sunday: Closed
Saturday – Sunday: Closed
Request an Appointment
Thank You
Your appointment request has been received. Our office will contact you within one business day to confirm your appointment.
