Concierge primary care
Physician-led primary care with time, access, and continuity.
WholeFamily MD is a small concierge primary care practice serving San Francisco and Mill Valley. Our model is designed around direct physician relationships, careful clinical judgment, and continuity over time.

A more deliberate model of primary care.
Limited patient panels allow our physicians to spend more time understanding medical history, current concerns, long-term risk, and the care decisions that require follow-through.
A smaller practice, structured for clinical attention and continuity.
The membership model limits patient volume so physicians have more time for preparation, visits, follow-up, and care coordination.
A primary care model built around continuity
The practice
A smaller practice, by design.
Membership supports the time and access needed for careful primary care, direct communication, and coordinated follow-through.
Membership
Services
Care for each phase of life.
Primary care services organized around access, continuity, prevention, and coordination.
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 complementary training across family medicine, internal medicine, preventive medicine, integrative medicine, and complex 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.
“A smaller panel creates room for preparation, clinical judgment, and continuity over time.”
