Meet Your Medical Team: We Care

Our multi-disciplinary medical team gathers clinicians who are best-in-class in their individual fields of specialty. Each clinician follows the latest research. Our treatment protocols are updated as new, scientific tests and therapies become available. Our doctors work together to tailor the best approach to restore you to full health.

Doctor Group Photo

Founders, Drs. Vikki & Rick Petersen, DC, CCN, CFMP

Despite very different upbringings — Dr Vikki was born in New York City, while Dr Rick was born on a farm in Iowa — their meeting in Chiropractic University was the beginning of a great love.

Drs. Vikki & Rick Petersen are both Certified in Functional Medicine and Clinical Nutrition and hold doctorates in Physical Medicine, through their degree in Chiropractic. Their broad base of training and expertise is what spawned Root Cause Medical Clinic, a team of clinicians who collaborate to restore patients to optimal health without the use of drugs.

Their love for each other and their children, their love for natural healthcare, their spiritual bond, and their life-long purpose to bring the best that drug-free healthcare has to offer to humanity, sums up their life together.

During their 30+ years of marriage, they have spent little time apart from one another. Like all great relationships they are different in many ways, complementing each other with different strengths.

Getting to the Root Cause of why a body is malfunctioning is a passion they both share, and they are known for their innovation and unrelenting tenacity to help patients, which likely accounts for the high success rate that patients enjoy.

Drs. Vikki and Rick are extremely proud of the team they have created at Root Cause Medical Clinic, and plan to continue expanding clinics around the country and internationally, while concurrently staying on the cutting edge of all that natural healthcare has to offer.

Root Cause Founders

Working Together to Help You Reclaim Your Life

Discover their commitment to Root Cause Medicine and clinical expertise in Functional Medicine, Internal Medicine, Regenerative Medicine, Chiropractic, Nutrition, and Physical Therapy.

Meet Your Root Cause Medical Team

Dr Vikki Petersen

Dr. Vikki Petersen, DC, CCN, CFMP

Founder, Executive Director, Doctor of Chiropractic, Certified Clinical Nutritionist, Certified Functional Medicine Practitioner

Dr. Richard Petersen, DC, CCN, CFMP

Founder, Clinical Director, Doctor of Chiropractic, Certified Clinical Nutritionist, Certified Functional Medicine Practitioner

Avalon Leigh Director of Marketing

Avalon Leigh

Director of Marketing

Dr. Sterling Petersen, DC

Doctor of Chiropractic

Nandita Mahadevan

Managing Director

Ron McKenzie, Physical Therapist

Ron McKenzie, Physical Therapist

Ron McKenzie, Physical Therapist

Sonja Pruitt Treatment Coordinator

Sonja Pruitt

Treatment Coordinator

Sonia Lomas

Medical Assistant

Vanessa Salazar Director of New Patients

Vanessa Salazar

Director of New Patients

Selena Vega

Patient Treatment Manager, Medical Assistant

Lisa Kleinschmidt Front Desk Manager

Lisa Kleinschmidt

Ask a Doctor Have a health concern you’d like to speak with a doctor about? Or just…

Patty_DiBlasio

Dr. Patty DiBlasio, MD, MPH

Doctor of Medicine

Dr. Dawn Frankwick, MD

Doctor of Medicine

Dr. Beth Segerholm, DNP, FNP-BC, IFMCP

Doctor of Nursing Practice, Family Nurse Practitioner, Functional Medicine Certified Practitioner

Wendy Gans, RDN

Wendy Gans, MS, RDN

Registered Dietitian,
Masters in Nutrition Science

Nessa Fahey Registered Dietitian

Nessa Fahey, RD

Registered Dietitian

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