I discover the root cause of your problem so healing can occur.
Ask a Doctor
Have a health concern you'd like to speak with a doctor about? Or just want clarity on a subject? Ask Us!
Dr. Richard Petersen, DC, CCN, CFMP
Founder, Clinical Director, Doctor of Chiropractic, Certified Clinical Nutritionist, Certified Functional Medicine Practitioner
Dr. Richard Petersen, a Doctor of Chiropractic, is co-founder of the world-renowned Root Cause Medical Clinics in Sunnyvale, California and Clearwater, Florida.
Dr. Petersen holds a Bachelor of Sciences degree from Iowa State University, and a Doctor of Chiropractic from Northwestern College of Chiropractic. After many years of private practice in Minnesota, Dr. Petersen moved to California, and in 1992 established Root Cause Medical Clinic, formerly known as HealthNOW Medical Center, with his wife, Dr. Vikki Petersen.
Dr. Petersen is the co-author of the bestselling book, “The Gluten Effect”, widely hailed as a breakthrough in the understanding of non-celiac gluten sensitivity.
A speaker for the Doctors’ Speakers Network, Dr. Petersen has presented health lectures for a number of Fortune Five Hundred companies, including: Apple, HP, and Cisco Systems.
Dr. Petersen regularly appears on radio and TV, educating the public on the hidden dangers of gluten. Recently featured in an exclusive interview on CNN Headline News, Dr Petersen is also endorsed by the National Foundation for Celiac Awareness & The Gluten Intolerance Group of North America.
Root Cause Medical Clinic takes a multi-disciplined approach to solving complex health problems. With doctors specializing in internal medicine, clinical nutrition, chiropractic and physical therapy, the medical center combines the best in the healing arts with cutting edge techniques designed to identify the root cause of a patient’s health condition and provide tailor-made wellness solutions.
He also participates in the Advanced Post Graduate Clinical Nutrition study several times a year with instructors from the Functional Medicine Institute.
He is currently the Clinical Nutrition Director of the California Root Cause Medical Clinic.
Dr Rick enjoys working with his wife (and co-founder) and is the proud father of three children. He enjoys long hikes with his dog and family, going to the farmers market and traveling.
Latest Patient Stories
Meet Our Other Doctors and Staff
Founder, Executive Director, Doctor of Chiropractic, Certified Clinical Nutritionist, Certified Functional Medicine Practitioner
Director of Marketing
Doctor of Chiropractic
Ron McKenzie, Physical Therapist
Ask a Doctor Have a health concern you’d like to speak with a doctor about? Or just…
Doctor of Medicine Board-certified OB-GYN
Doctor of Nursing Practice, Family Nurse Practitioner, Functional Medicine Certified Practitioner
Registered Dietitian, Masters in Nutrition Science