Meet Dr. Robert Ziltzer – Weight Loss Doctor Named Top Doctor by Phoenix Magazine Since 2008

Board-Certified Obesity Medicine Specialist Delivering Personalized, Evidence-Based Care at Our Arizona Medical Weight Loss Clinic

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Meet Weight Loss Doctor Robert Ziltzer, MD, FACP, FAAP, FOMA

portrait of robert ziltzer scottsdale weightloss center

Obesity Medicine Certified Physician

Founder and Managing Member

Dr. Robert Ziltzer provides medical weight loss solutions for patients in Phoenix and Scottsdale. As a specialist in obesity medicine, he identifies metabolic barriers that prevent successful weight management through standard dieting. His clinical practice at Scottsdale Weight Loss Center uses diagnostic data to create personalized medical plans tailored to individual physiological needs.

Named Top Doctor by Phoenix Magazine since 2008
Board-certified by the American Board of Obesity Medicine, the American Board of Internal Medicine, and the American Board of Pediatrics
Committed to specializing in medical weight loss in 1995, and a member of The Obesity Medicine Association (OMA) and the Obesity Society
Elected to Fellowship in the College of American Physicians

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Life/Education

Raised: Westchester County, New York
Bachelors: Biology, Rensselaer Polytechnic Institute, Troy, NY
MD: Albany Medical College of Union University

Dr. Ziltzer completed his internal medicine and pediatrics residencies at University of Arizona Banner Medical Center in Phoenix.

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Helping Patients Improve Their Health Through Compassionate, Evidence-Based Weight Loss Care That Lasts.

Dr. Ziltzer is a Diplomate of the American Board of Obesity Medicine, representing the highest level of certification in this specialty. He also holds a Fellowship in the College of American Physicians, a distinction that recognizes advanced clinical standing and professional contribution. His expertise is frequently utilized by local Phoenix news stations for medical segments regarding metabolic health and weight science.

These credentials confirm a commitment to evidence-based obesity treatment and patient safety. His clinical recommendations align with the research-led standards of the Obesity Medicine Association. This background ensures that patients in Phoenix and Scottsdale receive care in accordance with national medical protocols for weight management.

Comprehensive Obesity Medicine in Arizona

As a founding partner, Dr. Ziltzer manages the metabolic and hormonal factors that contribute to chronic weight gain. His role as an obesity medicine doctor in Arizona involves developing long-term strategies for sustainable fat loss. This physician-led weight loss approach relies on medical science rather than commercial diet trends.

Clinical plans are available at our offices in Phoenix, Scottsdale, Chandler, and Glendale. These programs include diagnostic metabolic testing to precisely calibrate caloric requirements. By stabilizing these internal factors, patients can achieve measurable improvements in overall health markers.

Personalized GLP-1 Therapy and Lifestyle Counseling

Treatment protocols often incorporate GLP-1 therapy, specifically medications such as Wegovy and Zepbound. Dr. Ziltzer monitors these pharmacological interventions to optimize efficacy while minimizing potential side effects. He integrates these medications with intensive lifestyle counseling to address nutritional and behavioral health.

This clinical combination supports the preservation of lean muscle mass during active weight reduction. Documented results from this approach are available in our success stories section. By managing the hormonal drivers of hunger, Dr. Ziltzer helps patients maintain long-term weight loss.

Phoenix Medical Weight Loss Questions

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Does Dr. Ziltzer see patients from both Phoenix and Scottsdale?

Yes, Dr. Ziltzer treats patients across the Phoenix metropolitan area. Our practice maintains fully staffed medical offices in Phoenix, Scottsdale, and Glendale for local clinical visits.

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What is the success rate of a physician-led program compared to online apps?

Physician-led programs provide diagnostic testing and personalized medical adjustments that automated apps cannot offer. Clinical oversight ensures that the treatment plan evolves based on your specific metabolic response and health data.

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How do I join the weight loss classes?

Patients must first complete an initial assessment and a pre-physical consultation with a clinician. After this medical clearance, you can register for Zoom classes via the QR codes found on the schedules in our offices.

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Do you offer in-person metabolic testing at any of your locations?

Yes, we provide metabolic testing at our Phoenix, Scottsdale, and Glendale offices to determine your exact resting metabolic rate. This data allows Dr. Ziltzer to personalize your caloric intake and medication dosages based on how your body uniquely processes energy.

Consult with a Leading Phoenix Weight Loss Doctor

Address the metabolic factors preventing your progress with a clinical plan from an obesity medicine specialist. Dr. Robert Ziltzer and the team at Scottsdale Weight Loss Center provide the diagnostic tools and medical oversight necessary for sustainable weight management. Schedule your initial consultation at our Phoenix, Scottsdale, Glendale locations to begin your physician-supervised program.

nick weight loss before and after scottsdale weight loss center

Nick's Story

"I wish I would have come here first. We spend all our time reacting to the next great weight loss tip or program. It might work for a while, but does not last and we end up yo-yoing from one fad to the next – as we gain more weight." Read More

gina weight loss before and after scottsdale weight loss center

Lost 44.5 lbs

"I had no trouble adhering to the meals and they really helped catapult my progress! The classes were so beneficial to me because they helped change my thinking about how I viewed health, nutrition, and fitness.

I will always have my relationship with Scottsdale Weight Loss Center. They truly helped me change my life forever." Read More

lauren weight loss before and after scottsdale weight loss center

Lost 60 lbs

"Dr. Ziltzer and everyone who I have come in contact with at the Scottsdale Weight Loss office have been so encouraging and I look forward to seeing them each week. It is now a year and 2 months later since I started. I am down 60 lbs., which is the average amount a 9-year-old weighs, it is crazy to think I lost a whole person! I feel amazing, I hit my goal weight in November 2021 just before Thanksgiving. Nothing on my body hurts anymore..." Read More

chuck h weight loss before and after scottsdale weight loss center

Lost 66 lbs

"The best thing I did was call the Scottsdale Weight Loss Center. I have a lot more energy, I'm not hungry, and it feels great.

You can take it from me that this is a program that produces results. The staff is always positive, supportive, and never judgmental.

Your visits always result in positive reinforcement, no matter if you had a good week or a bad week." Read More

emily weight loss before and after scottsdale weight loss center

Lost 101 lbs

"Here I am at the lowest I have been since high school weighing in at 155lbs. I have lost 101 lbs, BMI of 39 when I started, to 21.6, and of course at body fat % of 47.1 to 26.5%. I told myself by my 30th birthday I wanted to be confident in the way I look and I owe it all to SWLC. The entire staff is so welcoming and they are rooting for you just as much as you are rooting for yourself...." Read More

Reviews

      Excellent rating  
 Based on 416 reviews 
    
  
 
 
     Trustindex verifies that the original source of the review is Google. This practice is everything you would want from a physician office. Professional and knowledgeable staff and caring providers 10 stars!!!!
     
   Lisa Y 
 4 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. Everything perfect
     
   Andi K 
 10 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. I landed at Scottsdale Weight Loss 13 years ago and lost 50 pounds….regained 10 and then lost them again, plus another 20.  It is a great program, and all the professionals are amazing and caring.
     
   Mj W 
 16 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. SWL has been a God send to me! Dr. Guzman & staff especially Lilia & Bianca! They’re so supportive & professional I have lost approx 50 pounds over the year at my own pace.
     
   Donna L 
 18 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. Great place 30 lbs.and counting thank you And now it is over 40 lbs. and counting thank you great job
     
   John J 
 34 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. I cannot say enough wonderful things about Dr Robert Ziltzer! He helped me reach my ideal weight and more importantly maintain it for over 2 years. He has also helped me keep my blood pressure exactly where my internist wanted it. Dr Ziltzer is not only exceptional in weight management but also a truly gifted internet’s. His knowledge, kindness, and dedication are remarkable. I am deeply grateful for his care and recommend him whole heartedly!
     
   Merle S 
 41 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. The staff at the Phoenix office are great! My experience with Dr deGuzman has been wonderful. Miriam has always been very helpful and makes the office visits pleasant and personal. The medical assistants have always been professional and great to help meet my goals.
     
   Paula S 
 44 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. I really felt comfortable with Kristen at my initial appointment.  Everyone at the center was caring and friendly, from Bianca, at the front desk, to Lily, who is the MA.  Kristen listened to my frustrations and prior disappointments about what has not worked, and is confident that she can help me achieve my goals of weight loss.  I am looking forward and excited to see the success I will attain.
     
   Joyce K 
 51 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. My weight loss is going well because of Scottsdale Weight Loss Center.  I couldn’t do it without them
     
   Robert D 
 53 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. Amazing staff and great program!  Feeling great!
     
   Brian H 
 55 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. I'd lost 20 pounds on my own and struggled to keep it off.  I decided GLP-1 meds were the next step in losing more and keeping it off.  I wanted a medical doctor supervised program and chose SWLC. I am so very glad I did!  The team in Glendale is so supportive and kind; and when I feel discouraged, they pick me up with positive energy and input.  They really do a great job with encouragement all the time. 6 weeks in I've lost 17 pounds, and am approaching weight loss with a very new perspective.  Also knowing that when I reach my target goal, they'll be there through maintenance and beyond is encouraging as well.  Good to not feel alone on this journey.
     
   Stephanie P 
 69 days ago
 
 
 
 
   Trustindex verifies that the original source of the review is Google. They have encouraged and been there through every tough situation. Definitely the team to lean on.
     
   Theresa G 
 74 days ago
 
 
 
 
 
 
  
 
 
 
   Verified by Trustindex  Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more