Meet Our Medical Weight Loss Doctors

Craig Primack, MD and Robert Ziltzer, MD are medical weight loss doctors with a passion for healthy living. They understand what it takes to achieve and maintain a healthy lifestyle and they have extensive experience helping people achieve weight loss success. Get to know your medical weight loss doctor better.

Craig Primack, MD

Craig Primack, MD

Dr. Primack has the education and training of a medical weight loss doctor and the personal experience of having maintained his own long-term weight loss.

Born and raised in Chicago, Illinois, Dr. Primack attended the University of Illinois before earning his medical degree from Loyola University Stritch School of Medicine. He then moved to Arizona in 1997 to complete a combined medical residency program in Internal Medicine and Pediatrics at Good Samaritan Regional Medical Center and Phoenix Children’s Hospital.

Dr. Primack has been practicing in Arizona for more than 10 years and has been listed as one of Phoenix Magazine’s Top Docs in 2008, 2009, and 2010, as well as one of Scottsdale 101 magazine’s Top 101 Doctors. He specializes in medical weight loss and is board certified by The American Board of Bariatric Medicine. Dr. Primack is also a member of the American Society of Bariatric Physicians and the Obesity Society.

As a medical weight loss doctor, Dr. Primack focuses on prescribing weight loss programs that are tailored to his patients’ individual needs and clinically proven to provide safe and significant results.

Dr. Primack and his wife Allyson live in Arizona with their three children. He has personally lost 30 pounds and has maintained his weight loss for more than five years. He enjoys cycling and running and has completed several half marathons and one full marathon.

Rob Ziltzer, MD

Rob Ziltzer, MD

Dr. Ziltzer’s passion for serving as a medical weight loss doctor is born, in part, from his experience in treating people who suffered from obesity-related illnesses.

Dr. Ziltzer earned his medical degree from the Albany Medical College of Union University and completed his combined Internal Medicine and Pediatrics medical residency at Good Samaritan Regional Medical Center and Phoenix Children’s Hospital. He then established a medical practice in Scottsdale, Arizona in 1991, where he treated many patients suffering from diabetes, high blood pressure, and high cholesterol. While treating these patients, Dr. Ziltzer observed the impact that weight loss had on these medical conditions, as well on the confidence and self esteem of his patients.

In 1995, Dr. Ziltzer committed to specializing in medical weight loss. He is board certified by The American Board of Bariatric Medicine and a member of the American Society of Bariatric Physicians and the Obesity Society. Dr. Ziltzer has also been listed as one of Phoenix Magazine’s Top Docs in 2008,  2009, and 2010 and as one of Scottsdale 101 magazine’s Top 101 Doctors.

In addition to serving the community as a medical weight loss doctor and advocate for health and well-being, Dr. Ziltzer enjoys training for marathons and spending time with his wife and two children.