About
Dr. Mallory Cless grew up in Danville and returned to the community to build her medical career. She completed her undergraduate studies at the University of San Diego and earned her medical degree from UCSD School of Medicine. She completed her Family Medicine residency at Contra Costa Regional Medical Center. Dr. Cless is drawn to the breadth of family medicine and the opportunity it creates for lasting patient relationships. Her clinical interests include preventive care, lifestyle medicine, and addiction medicine. She enjoys hiking around the Bay Area, biking, and exploring the local food scene.
Education & Training
Undergraduate
University of San Diego
Medical School
UCSD School of Medicine
Residency
Family Medicine, Contra Costa Regional Medical Center
Who is Dr. Cless right for?
Dr. Cless is a strong fit for patients who value a physician focused on prevention and long-term relationship-based care. Adults interested in lifestyle medicine or navigating addiction medicine will find her clinical interests directly aligned. Her deep local roots make her especially approachable for patients who grew up in or around Danville. She welcomes patients across all stages of adult life.
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Frequently Asked Questions
Dr. Cless focuses on family medicine, preventive care, lifestyle medicine, and addiction medicine. She values the diversity of family medicine and the long-term patient relationships it supports.
Dr. Cless earned her medical degree from UCSD School of Medicine. She completed her Family Medicine residency at Contra Costa Regional Medical Center.
Yes, addiction medicine is one of Dr. Cless's clinical interests. She addresses it within the broader context of primary and preventive care.
Yes, Dr. Cless grew up in Danville and chose to return to the community to practice medicine. That local connection shapes her commitment to her patients and the broader East Bay community.
Dr. Cless enjoys building longitudinal relationships with patients. She brings a preventive and lifestyle-focused lens to primary care and works with patients over time to support their long-term health.
Yes, lifestyle medicine is a core interest for Dr. Cless. She incorporates lifestyle-based strategies into her preventive care approach alongside traditional family medicine.
Doctor profile last updated June 9, 2026