Concierge Medicine for Families and Individuals Across the Peninsula
Peninsula Doctor is a concierge doctor practice serving Menlo Park, the Peninsula, and Silicon Valley, built on a simple idea: your physician should have the time to actually know you. We offer personalized primary care, preventive medicine, women’s health and longevity planning. Same-day visits, direct access day or night, and care built around your whole life.

Our Approach to Concierge Care
Exceptional primary care begins with you and your story. Our concierge care is whole-person, whole-life — a personalized plan built around your needs and your goals, not a rushed checklist. That’s why we start every relationship with a conversation.
Peninsula Doctor was founded by Dr. Ian Kroes, a Stanford-trained family physician who has practiced in Menlo Park for over 20 years. Today, our physicians carry forward the belief this practice was built on: that good medicine can’t be rushed, and it starts with truly knowing the person in front of you.

We’ll know you by name, and by heart.
In medicine, relationships matter. Our concierge plans keep every patient panel capped at just 100 patients — creating space for a more personal doctor-patient dialogue, one that lets us be there for you in your most cherished and most challenging moments. And as the years unfold, you’ll stay right at the center of our practice.

Concierge Medicine, Rooted in Our Patients
Experience You Can Trust.
That closeness is backed by expertise. Experience is powerful medicine — and we build trust through better outcomes. Your personal care team — physician, nurse, medical assistant, specialists, and wellness advisors — draws on decades of in-practice and research experience from top schools and hospitals nationwide, bringing you deeply informed, cutting-edge care decisions.

More Than a First Stop in Illness — Your First Step in Wellness.
That expertise isn’t just for when something’s wrong. Peninsula Doctor’s concierge medicine looks beyond coughs and colds, taking a long view of longevity — with an eye on the quality of your life decades from now. We’re more than your first stop in illness; we’re your first step toward an expansive, personalized plan for a longer, fuller life.




