At Los Altos MD, medicine is more than a profession—it’s a family tradition. What began as Dr. John Madej’s solo internal medicine practice has grown into something even more special: a true family-run clinic where experience meets fresh perspective, and where every patient is treated like part of the extended family.

With decades of trusted care behind him, Dr. Madej now works alongside his daughter, Dr. Jessica Madej, blending deep clinical expertise with a new generation of medical insight. Together, they offer a seamless, compassionate experience built on shared values: personal attention, thoughtful listening, and a commitment to treating the whole person—not just the symptoms.

Our practice is rooted in the belief that meaningful relationships are at the heart of great healthcare. As a father-daughter team, we understand the importance of continuity, trust, and communication. Whether you’re visiting for the first time or have been with us for years, you can expect care that’s not only informed, but deeply invested in your well-being.

Welcome to our practice. We’re honored to care for you—and your family—like we would our own.