Your Team
You're in charge of your health 24/7, but you shouldn't have to do it alone. While your 5+5 Blueprint is physician-led, our ultimate strength lies in our collaborative team. Our dietitian, psychologist, and physiotherapist all have backgrounds rooted in Western Medicine plus have a root-cause approach to health. Seeing the gaps in preventive health care both personally and professionally, we're on a mission to help Canadians take control of their health.
Dr. Jeff Obayashi​​
Medical Director and Founder
Clinical Instructor, UBC Faculty of Medicine
B.Sc. Genetics (UBC)
MD (UBC)
CCFP
After more than 15 years of practicing medicine across British Columbia, Dr. Obayashi founded Biobi Health to combine his genetics and medical degrees and shift his focus from reacting to disease to prevention. The first half of his career as a rural family doctor provided a strong clinical foundation from ER and OR to delivering babies and rural cardiac stress testing. Even the Biobi "Walk & Talks" have deep roots; they are a throwback to his teaching days when he founded an English-immersion program in Northern Thailand. Dr. Obayashi currently works as a Family Physician and Hospitalist in White Rock and is further specializing with training in functional medicine.
Dr. Obayashi serves as your personal physician for preventive care. While traditional clinical work is rewarding, it forces him to focus on negatives, red-flags, and breaking bad news. At Biobi Health he can focus on positives, your genetic strengths, and providing you with dozens of specific actions to improve your health, vitality, and quality of life.
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"Doctor comes from the latin word to teach. Knowledge and giving Canadians access to modern technology is the key to long-term health improvements. We're not building this company to scale. I like to focus on one person at a time to improve their health trajectory. Advances in medicine shouldn't just make you live longer, they should make you live better."
Dr. Diana Jahnsen
Licensed School Psychologist
Ed.D. Psychology (Johns Hopkins University)
M.A. School Psychology (UBC)
B.Ed. Special Education (U of A)
Dr. Jahnsen is a licensed school psychologist with over 20 years of experience in the Surrey School District and a doctorate from Johns Hopkins University. A distinguished researcher and author, she has co-authored numerous publications on psychology and education, including the recent book "Education for Social Justice".
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At Biobi Health, Dr. Jahnsen leads the psychological and mindset pillars of your 5+5 Health Plan, providing 1-on-1 consultations to better understand and leverage your psychology genetics.​
"As both a presenter and participant in Biobi Health, my goal is to enhance my overall wellness while sharing valuable knowledge with others. I believe that psychology is a vital aspect of well-being, and I’m committed to integrating all elements of health to help myself and others develop a system that supports optimal wellness."
Diane Rohac
Registered Dietitian
​B.Sc. Dietetics (Université Laval)
Diane is a Registered Dietitian with over 30 years of experience in patient care and leadership roles in hospital-based dietary services. She was the Clinical Practice Leader for dietary services at Jim Pattison Outpatient Care and Surgery Centre, and currently works at the Peace Arch Hospital Intensive Care Unit (ICU). Her long-standing career within Fraser Health has made her a trusted authority in clinical nutrition to our community.
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At Biobi Health, Diane leads the dietary and nutritional components of your 5+5 Health Plan, providing 1-on-1 consultations to tailor your nutrition strategy to your DNA.​
Diane is known for her compassionate care and strong leadership in a wide variety of clinical settings. Her approach is deeply rooted in a holistic health model that addresses the physical, mental, emotional, and spiritual dimensions of well-being. By combining rigorous clinical standards with an integrative philosophy, Diane ensures your path to wellness is as sustainable as it is scientifically precise.
Sumen Singla
Registered Physiotherapist
Osteopathic Practitioner
Sumen has over 15 years of clinical experience as a combined Physiotherapist and Osteopathic Practitioner. A recognized leader in her field, she serves on the Board of Directors at OsteopathyBC and holds AFC certification in acupuncture, bringing a sophisticated, multi-lens toolkit to physical rehabilitation.
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At Biobi Health, Sumen leads the exercise and peak performance aspects of your 5+5 Health Plan, providing 1-on-1 consultations to modify your movements based on your genetics.
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Sumen is a dedicated community educator, frequently sharing her expertise on various health conditions through radio, articles, and blog posts. She specializes in treating multifaceted chronic pain, utilizing a holistic philosophy that views the body as an integrated system. This patient-centered approach is the foundation of her work at Biobi, where she helps members move beyond limitations to reach their full physical potential. In her free time you will find Sumen spending time in the outdoors with her family.​
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Karen Krahn
Office Manager
B.A. (University of Manitoba)​
Karen brings a wealth of administrative expertise to Biobi Health, rooted in a lifelong passion for preventative care. With decades of experience as a Dental Hygienist she understands long-term health maintenance. As a unit clerk at Peace Arch Hospital, she excels at navigating complex healthcare systems.​
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As our Office Manager and Patient Navigator, Karen is your primary contact for all logistical needs. She meticulously manages the "behind-the-scenes" details—from Arya portal coordination to precision testing—removing administrative burdens so you can focus entirely on your 5+5 Health Plan.
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Karen’s philosophy is defined by a deep respect for the dynamic nature of the human body. Her interest in functional medicine aligns perfectly with Biobi’s mission to help members evolve into their best selves. Known for her warmth and meticulous care, Karen is an avid gardener and walker who cherishes time with her family in the local community.​
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