Personal primary care
Primary care with time, access, and continuity.
WholeFamily MD is a small physician-led concierge primary care practice in San Francisco and Mill Valley. Our doctors know their patients deeply and have the time to care for the whole person—not just the problem of the day.

Doctors who know you.
We combine evidence-based Western medicine with thoughtful integrative care, considering nutrition, activity, sleep, relationships, environment, and long-term risk.
A deliberately smaller practice, built for more attentive care.
We see fewer than one-third of the patients per day that a traditional primary care doctor sees.
The case for personal primary care
The practice
A smaller practice, by design.
Membership creates the time and access needed for a physician-led relationship over years—not minutes.
Membership
Services
Care for each phase of life.
Essential primary care, made more personal through time, context, and continuity.
Care area
Adult Wellness
Preventive visits, urgent concerns, chronic conditions, and phase-of-life care for adults who want a physician who knows the full context.
Care area
Women’s Health
Longitudinal care for women across adulthood, including hormonal evaluation, gynecologic care, midlife health, and prevention.
Care area
Senior Care
Attentive care for older adults, from prevention and longevity planning to complex medical coordination.
Care area
Complex Care Management
Steady physician partnership for patients navigating complex, high-acuity, or rapidly changing medical situations.
Meet the Team
Our Provider Team
The physicians at WholeFamily MD bring distinct training and a shared commitment to careful, relationship-based care.

Family Medicine Physician
Avril Swan, MD
Dr. Avril Swan integrates traditional western medicine with alternative methods when treating her patients. As a family physician, she sees patients of all ages with a range of needs, including preventative care as well as urgent and chronic concerns.
Family Medicine Physician
Christina Peretz, MD
Dr. Christina Peretz is board certified in family medicine and Integrative Holistic Medicine. She has a particular interest in chronic disease management, autoimmune conditions, metabolic disorders including diabetes, and gastrointestinal problems.
Integrative Primary Care Physician
Alex Zaphiris, MD, MS
Dr. Alex Zaphiris is an integrative primary care provider who brings together the best of Western and alternative medicine to help patients restore and optimize their health.
Internal Medicine and Preventive Medicine Physician
Patrick Sanger, MD, PhD
Dr. Patrick Sanger offers a highly personalized, relationship-driven model of adult primary care, blending slow medicine, preventive medicine, and healthspan-focused clinical strategy.
“More time with fewer patients is the quiet foundation of more personal care.”
