Our Doctors 2018-05-31T13:13:23+00:00

Meet Our Weight Loss Doctors


We are medical weight loss doctors with a passion for healthy living. We understand what it takes to achieve and maintain a healthy lifestyle and have extensive experience helping people achieve weight loss success.

Craig Primack, MD, FACP

Obesity Medicine Certified Physician

Dr. Craig Primack is a native of Chicago, and has been practicing medicine in Arizona since 1997. He is board certified in Obesity Medicine, Internal Medicine and Pediatrics, and is considered one of Phoenix Magazines “Top Doc’s,” and Scottsdale 101 Magazine’s “Top 101 Doctors.”

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Robert Ziltzer, MD, FACP

Obesity Medicine Certified Physician

Dr. Robert Ziltzer has been practicing medicine in Scottsdale for over 20 years. He is board certified in Obesity Medicine. Dr. Ziltzer is frequently named one of Phoenix Magazines “Tops Doc’s” as well as Scottsdale 101 Magazines “Top 101 Doctors.”

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Paul Sarmiento, MD

Physician

Dr. Paul Sarmiento, MD is a physician at Scottsdale Weight Loss Center in Glendale. Dr. Sarmiento is excited for the opportunity to help patients control their weight-related illnesses and reach their weight loss goals.

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Melody Rodarte, DO, FACP

Obesity Medicine Certified Physician

Dr. Melody Medawar Rodarte is a native of Arizona and is board certified in Obesity Medicine and Internal Medicine. She is passionate about helping people overcome obesity-related diseases like diabetes, joint pain and heart disease.

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John de Guzman, MD

Obesity Medicine Certified Physician

Dr. de Guzman was born and raised in Wisconsin and has lived and practiced Internal Medicine in Central Phoenix for 20 years. He has been named to Phoenix Magazine’s “Top Doc” list on multiple occasions.

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