Gary Knighton, DO, a Bariatrician with Arizona Medical Weight Loss

Get to know Bariatrician Dr. Gary Knighton, who serves patients in Mesa, Arizona.

Ranking Arizona’s #1 Physician for Weight-Loss Management, Dr. Knighton’s vast knowledge of bariatric medicine and the ability to see beyond the obstacles and take science into consideration truly make him one-of-a-kind. He is the Founder of Arizona Medical Weight Loss in Mesa, Arizona.

Dr. Knighton has 24 years of training and experience helping people lose weight and feel better about themselves. Dr. Knighton’s number one priority is to be involved in the care of every patient who walks through his door. He and his staff provide an individualized weight loss experience. He wants patients to feel at home in a comfortable, inviting atmosphere, where they feel genuinely cared for. What he and his staff offer is something utterly unique.

Patients come from all over the country to see Dr. Knighton. His personal experience, battling weight and losing weight adds another dimension to his approach helping others lose weight and feel better about themselves. His patients have success without feeling deprived. 

A 1995 graduate of the A.T. Still University of Health Sciences, Kirksville College of Osteopathic Medicine, Dr. Knighton has been practicing bariatric medicine since 1996. His philosophy on helping patients lose weight is to never assume that any two people are the same. 

As a bariatrician and a long-standing member of the American Society of Bariatric Physicians, he believes in using a multi-faceted approach combining a balance of nutrition, activity, proper vitamin supplementation, and medications to help his patients shed extra weight. His Weight Loss Program has helped thousands achieve dramatic results – from late teens to the aged, new moms to men at midlife, former professional athletes to former models, etc. 

Bariatrics is the branch of medicine that deals with the causes, prevention, and treatment of obesity. A bariatrician is a Doctor of Medicine (MD) or a Doctor of Osteopathy (DO) who has received special education and training in bariatric medicine. They may treat overweight and obese patients with diet, nutrition, exercise, behavioral therapy, appropriate medications, or any combination of these treatments.

Recognized as an authority in his field, Dr. Knighton is the recipient of Compassionate Doctor Recognition (2014, 2016), On-Time Doctor Award (2014, 2015, 2016, 2018), and Patients’ Choice Award (2015, 2016, 2018).

Learn More about Dr. Gary Knighton:

Through his findatopdoc profile, or through Arizona Medical Weight Loss,


FindaTopDoc is a digital health information company that helps connect patients with local physicians and specialists who accept your insurance. Our goal is to help guide you on your journey towards optimal health by providing you with the know how to make informed decisions for you and your family. 

Karen Johnson

Karen Johnson is an Associate Content manager for FindaTopDoc and responsible for working with distinguished physicians in documenting their significant accomplishments in their field. Karen is a CPR instructor and is a member of her local theater group.