Concierge Medicine in Menlo Park & Silicon Valley
Peninsula Doctor is a concierge medical practice serving Menlo Park, the Peninsula, and Silicon Valley, built on a simple idea: your physician should have the time to truly know you. We provide personalized primary care, preventive medicine, women’s health, and longevity care—with same-day visits, direct access to your physician day or night, and care built around your whole life.
Our approach to concierge Care.
Exceptional primary care begins with understanding you—your health, your history, and your life. At Peninsula Doctor, we practice whole-person care, taking the time to understand what matters to you and creating a thoughtful approach to your health that is truly personal. Every relationship begins with a conversation.
Peninsula Doctor was founded by Dr. Ian Kroes, a Stanford-trained family physician who has cared for patients in Menlo Park for more than 20 years. His philosophy continues to shape our practice today: exceptional medicine takes time. It begins with listening, building trust, and truly knowing the person behind the patient.
We’ll know you by name, and by heart.
In medicine, relationships matter. Our concierge primary care model limits each physician’s panel to just 100 patients, creating the time and space for a more personal doctor-patient relationship. It allows us to truly know you, be there for you through life’s most important and challenging moments, and keep you at the center of your care for years to come.
Concierge Medicine, Rooted in Our Patients
Experience You Can Trust.
Personal care is backed by exceptional medical expertise. Our experienced primary care physicians have trained and practiced at leading institutions including Stanford, UCSF, and Sutter Health, with backgrounds from top U.S. medical schools.
Working alongside our nurses, medical assistants, specialists, and wellness advisors, they bring decades of clinical experience and the latest medical research to every decision—providing thoughtful, evidence-based care tailored to you.
More Than a First Stop in Illness — Your First Step in Wellness.
Our expertise isn’t reserved for when something is wrong. We look beyond coughs and colds, combining preventive medicine with a long-term approach to longevity and healthy aging—with an eye on the quality of your life decades from now. We’re more than your first call when you’re sick; we’re your partner in building a personalized plan for a longer, healthier, fuller life.
What People Ask Us Most
What is concierge medicine?
Concierge medicine is a membership-based model that allows physicians to care for far fewer patients than in a traditional primary care practice. At Peninsula Doctor, each physician’s panel is capped at just 100 patients. This smaller patient panel makes same-day appointments, direct access to your physician, and highly personalized care built around your health and your life possible.
How is Peninsula Doctor different from other concierge practices in Silicon Valley?
We’re a family-focused concierge primary care practice in Silicon Valley. Our physicians bring 15–20 years of primary care experience, with training and experience at leading institutions including Stanford, UCSF, and Sutter Health.
That depth of experience allows us to manage a broad range of medical needs and provide many services and procedures in-house. From women’s health and dermatology to preventive care, longevity medicine, and in-depth health data analysis, more of your care happens right here—with physicians who know you and understand your complete health picture.
What areas does Peninsula Doctor serve?
We’re based in Menlo Park and see patients throughout the Peninsula and Silicon Valley, including Palo Alto, Atherton, Woodside, Los Altos and Portola Valley. We also see members at home, at the office, or while traveling, when needed.
Do you accept insurance or Medicare?
Peninsula Doctor is an independent, membership-based medical practice and does not bill insurance or Medicare. We recommend that members maintain health insurance for hospitalizations, specialist care, and medical services outside the scope of our primary care practice. [See the full FAQ →]
How do I become a patient?
Reach out through our contact page or call us directly. Every relationship begins with a conversation so we can understand your health goals, answer your questions, and make sure Peninsula Doctor is the right fit for you before you make any commitment.
What services are included in membership?
Primary care, preventive medicine, women’s health, and longevity care are all included in your membership, with no additional per-visit fees. [See the full FAQ →]