About
Dr. Rebecca Bub earned her bachelor's degree in Human Biology from Michigan State University, graduated from Lake Erie College of Osteopathic Medicine in 2011, and completed her Family Medicine residency at the University of Colorado at Rose Hospital in 2014. She has practiced outpatient family medicine in Littleton ever since, and she founded Pure Family Medicine to build the kind of patient relationships she believes good medicine requires.
She holds board certification in Family Medicine and leads the practice's Pure Longevity program, focusing on health optimization and early disease detection. Her philosophy is direct: she gives patients the same medical advice she would give her own mother or children. She sees family life and medical practice as deeply connected. She identifies first as a family medicine physician and a mom. She has a husband and three children, and she spends her free time hiking, skiing, mountain biking, and exploring Colorado.
Education & Training
Undergraduate
Michigan State University, Bachelor of Science in Human Biology
Medical School
Lake Erie College of Osteopathic Medicine (2011)
Residency
Family Medicine, University of Colorado at Rose Hospital (2014)
Certifications
Conditions Treated
Who is Dr. Bub right for?
Dr. Bub is a strong fit for patients who want a long-term primary care relationship with a physician who knows them well. Adults seeking proactive health optimization and early disease detection benefit from her Pure Longevity program. She also serves families, including children and newborns, with a personal and practical approach. Patients who value direct access to their physician by call or text will find her style refreshing.
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Frequently Asked Questions
Dr. Bub specializes in family medicine and preventive medicine. She leads the Pure Longevity program, which focuses on health optimization and early disease detection. She provides comprehensive primary care for patients across all age groups.
Yes, Dr. Bub holds board certification in Family Medicine. She earned her DO degree from Lake Erie College of Osteopathic Medicine and completed her residency at the University of Colorado at Rose Hospital.
Dr. Bub graduated from Lake Erie College of Osteopathic Medicine in 2011. She completed her Family Medicine residency at the University of Colorado at Rose Hospital in 2014. She has practiced in Littleton ever since.
Pure Longevity is a proactive health optimization program. Dr. Bub designed it around early disease detection and helping patients maintain peak health. It goes beyond reactive sick care to focus on long-term wellness planning.
Dr. Bub gives patients the same medical advice she would give her own family. She believes good medicine requires real time and genuine relationships. Her practice model reflects that conviction directly.
Dr. Bub has practiced outpatient family medicine in Littleton since 2014. She founded Pure Family Medicine to build the kind of patient relationships she believes quality care demands.
Yes, Dr. Bub practices family medicine, which means she sees patients across the full age spectrum. This includes newborns, children, adolescents, and adults.
Doctor profile last updated March 21, 2026