About
Dr. Julia Lewis-Hatheway brings a background in both inpatient and outpatient medicine to her primary care work. A dual Canadian American citizen, she studied History, Anthropology, and English at the University of Toronto before earning her medical degree at Saint Louis University School of Medicine. She completed her internal medicine residency at California Pacific Medical Center, where she was then selected as Chief Resident.
Following residency, Dr. Lewis-Hatheway worked as a hospitalist with Pacific Inpatient Medical Group, rotating through Sutter Santa Rosa, Novato, CPMC Mission Bernal, and CPMC Davies. She joined this practice in 2022, drawn by the opportunity to build long-term patient relationships and support ongoing health management. She holds board certification in Internal Medicine and is passionate about chronic disease management, preventive screening, and longevity research. She resides on the Peninsula with her husband, a breast cancer imaging researcher. Her hobbies include backpacking, reading murder mysteries, and making wine.
Education & Training
Undergraduate
University of Toronto - History, Anthropology, and English
Medical School
Saint Louis University School of Medicine
Residency
Internal Medicine, California Pacific Medical Center
Certifications
Conditions Treated
Who is Dr. Lewis-Hatheway right for?
Dr. Lewis-Hatheway is a strong fit for adults who want a physician invested in their long-term health. Patients managing chronic conditions benefit from her focus on ongoing disease management and preventive screening. Her hospitalist background makes her well-suited for patients navigating complex or multi-system health concerns. Adults interested in longevity and evidence-based prevention will find her clinical interests align well with their goals.
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Frequently Asked Questions
Dr. Lewis-Hatheway focuses on chronic disease management, preventive care, and internal medicine across a broad range of adult conditions. Her background in both inpatient and outpatient medicine means she brings depth to complex, multi-system cases. She also helps patients with preventive screening and proactive health planning.
Yes. Dr. Lewis-Hatheway holds board certification in Internal Medicine.
Dr. Lewis-Hatheway earned her medical degree at Saint Louis University School of Medicine. She completed her internal medicine residency at California Pacific Medical Center, where the program selected her as Chief Resident.
Dr. Lewis-Hatheway joined the practice in 2022 specifically to build long-term patient relationships. After years of rotating through hospital settings as a hospitalist, she wanted to support patients through ongoing health management over time.
Yes. After residency, Dr. Lewis-Hatheway worked with Pacific Inpatient Medical Group as a hospitalist. She rotated through Sutter Santa Rosa, Novato, CPMC Mission Bernal, and CPMC Davies before joining this practice.
Dr. Lewis-Hatheway reviews the current evidence around testing and treatment, then works with each patient to build a plan that fits their specific situation. She places particular emphasis on preventive screening and long-term disease management.
Yes. Longevity research is one of Dr. Lewis-Hatheway's active clinical interests. She incorporates evidence-based strategies for healthy aging into her approach to preventive care and chronic disease management.
Doctor profile last updated March 21, 2026