It’s About Biology, Not Willpower. And I’m Here to Help.

If you have felt frustrated by yo-yo diets or constant “food noise,” you are not alone. As a dedicated weight loss doctor serving Denver, Centennial, and Highlands Ranch, my life’s work has been proving that obesity is a complex disease driven by biology, not a lack of character. As a Denver native and father of three, I understand the lifestyle challenges my patients face in Colorado. When I’m not in the clinic helping patients, you can usually find me skiing, running, or playing the cello.

I am a double board-certified specialist in Obesity Medicine and Family Medicine. Unlike online-only subscription services, my practice in Greenwood Village offers personalized, face-to-face medical care. My team and I look at the whole picture—lab tests, body composition, and metabolic history—to help patients from Aurora to Lone Tree achieve sustainable results.

Expert Management of Wegovy®, Zepbound®, and Metabolic Health

As the Past President of the Obesity Medicine Association, I am committed to using the most advanced scientific tools available. My role is to serve as your medical partner, customizing a plan that may include FDA-approved anti-obesity medications such as semaglutide (Wegovy®) and tirzepatide (Zepbound®).

Why Choose a Board-Certified Weight Loss Doctor?

  • Safety: We carefully monitor GLP-1 usage to manage side effects and ensure safety.

  • Precision: We tailor dosages based on your unique metabolic response.

  • Comprehensive Care: Medication is most effective when paired with the nutrition and behavioral support provided by our team of Weight Loss Dietitians.

Whether you are driving in from Littleton or Englewood, our goal is to provide the accountability and expertise you need to turn temporary weight loss into lifelong health.

What Our Patients Say About Dr. Lazarus | Denver’s Weight Loss Doctor

4.9
Based on 58 reviews
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  • As healthcare in our country is turning into mush, Dr. Lazarus has not. He has been a great doctor for weight management for me for over a decade. He has… read more

    Eva Englander Avatar Eva
    May 27, 2026

    I have been so pleased with the support from this processes. It’s not just about the weightloss but about learning how to be healthy for life! Jamie and Heather have… read more

    Myriam Helton Avatar Myriam
    May 27, 2026

    They really care about your progress, they have great education tools to help you to understand obesity, and really great people work there! They are also good at taking… read more

    Paula Gilbert Avatar Paula
    May 14, 2026
  • The people working there are awesome.

    Molly Vieyra-Smith Avatar Molly
    May 14, 2026

    CNC quite literally changed—and may have even saved—my life. Before finding CNC, my health was at an all-time low. I was borderline diabetic, struggling with high blood pressure, eating poorly, exhausted… read more

    Cate Jenkins Avatar Cate
    May 9, 2026

    The caring culture and patient attentiveness is truly special at Clinical Nutrition Center. From the staff to the physicians they really care about your success in your health journey.

    Steve Schiff Avatar Steve
    May 8, 2026
  • Dr. Lazarus is so knowledgeable in obesity medicine and is up to date on all the new studies, medicines, treatments. He is easy to talk to and suggests the… read more

    Laura Parry Avatar Laura
    May 7, 2026

    The CNC is great. People are supportive and knowledgable. I have been involved with CNC for 20+ years. I thank god for Dr. Lazarus and his entire staff. Weight management… read more

    Allan Stanley Avatar Allan
    May 6, 2026

    I am a long term patient of Clinical Nutrition Center with Dr. Lazarus. This is the very first time in my life (75yrs old) that I have kept the weight… read more

    Marcia Avatar Marcia
    May 6, 2026
  • Amazing practice. They have been with me every step through the ups and downs. I was never able to lose weight until I came here. Couldn’t recommend enough.

    Nicola Boback Avatar Nicola
    May 1, 2026

    Love all the employees here!! Reliable and friendly!! Thank you for helping me with my weight loss journey!

    Teressa Sanstra Avatar Teressa
    April 27, 2026

    Dr Lazarus and his team at CNC is a wonderful group. Everyone is very friendly and welcoming. Dr Lazarus is a very brilliant man and has helped me with his… read more

    Sheila Semler Avatar Sheila
    February 13, 2026
  • Dr Lazarus and his team at CNC is a wonderful group. Everyone is very friendly and welcoming. Dr Lazarus is a very brilliant man and has helped me with his… read more

    Sheila Semler Avatar Sheila
    February 13, 2026

    Stacey is excellent especially making sure ingredients are healthy. Heather and Dr Lazarus are wonderful. Highly recommend

    Kimberly Cancelosi Avatar Kimberly
    January 20, 2026

    The Medical staff are highly trained professionals and extremely knowledgeable. They take their time and listen to you and consider all factors. They explain options available to you very… read more

    Sandy DeMarco Avatar Sandy
    January 8, 2026
  • The Medical staff are highly trained professionals and extremely knowledgeable. They take their time and listen to you and consider all factors. They explain options available to you very… read more

    Sandy DeMarco Avatar Sandy
    January 8, 2026

    Everyone who works here is invested in my weight loss. For any struggle I’m having they have a suggestion that helps me turn it around. I’ve tried every weight loss… read more

    Julie Saad Avatar Julie
    December 23, 2025

    I feel blessed to have found Dr. Ethan Lazarus, medical obesity specialist, and Mary Ellen, nutritionist, at CNC. The support, knowledge, communication and commitment to the patient far surpasses my… read more

    Larry Walters Avatar Larry
    December 10, 2025
  • I feel blessed to have found Dr. Ethan Lazarus, medical obesity specialist, and Mary Ellen, nutritionist, at CNC. The support, knowledge, communication and commitment to the patient far surpasses my… read more

    Larry Walters Avatar Larry
    December 10, 2025

    Education is big, and this staff is very good at that. This is how you do it the right way. they saved and changed my life. Both my wife and… read more

    Mike Barnett Avatar Mike
    November 23, 2025

    Responsive and caring; significant weight loss with Zepbound.

    Carolyn Cooper Avatar Carolyn
    November 13, 2025
  • Great team of experts to help me reach my goals and delicious snacks available at the store on-site.

    Kathy Borgais Avatar Kathy
    November 8, 2025

    Awesome experience and Jamie is great! Recommend this clinic to anyone.

    mya beltran Avatar mya
    November 7, 2025

    Awesome staff who worked with me to figure out the best treatment for me!!

    Mark Heydt Avatar Mark
    October 31, 2025
  • Excellent, individualized and comprehensive support! I highly recommend the CNC!

    Betsy Pike Avatar Betsy
    October 24, 2025

    Great staff, on time, friendly and knowedgable

    Bj McCarthy Avatar Bj
    October 23, 2025

    Clinical Nutrition is a wonderful place. The nurses are kind and Jamie is fantastic. She gives you great advice on meals, exercise, and explained the importance of building muscle through… read more

    Sherri Walters Avatar Sherri
    October 23, 2025
  • I hate how long it took me to find out about this place. I’ve been working with Stacy Gill (Nutritionist) and Jamie Shriver (PA) and they are both incredible. I… read more

    Jocelyn Criswell Avatar Jocelyn
    October 23, 2025

    I love CNC. They are so supportive and helpful in this life long weight journey.

    Mary Ruparel Avatar Mary
    October 21, 2025

    I love clinical nutrition center. I started my weight loss journey 3 years ago and lost 40 pounds. I have kept the weight off ever since and I’m very happy!… read more

    Beveley Whitaker Avatar Beveley
    October 16, 2025

My Commitment to You

My mission is to provide the highest level of care in the field of obesity medicine. Whether you need to lose 20 pounds or more than 100, I am committed to using every evidence-based tool available to help you improve your health, feel better, and rediscover a zest for life. You don’t have to do this alone.

Curriculum Vitae (CV)

Are you ready to take the next step?

Your journey to lasting health starts with a simple conversation. Let’s work together to create a customized plan that finally works for you.

*Your free visit can be with one of our Providers or Registered Dietitians. We will answer all of your questions, explain our programs and fees, and figure out if this is a good fit. This can be done in-person, or by phone or video. There are no obligations for this visit. This free visit is only for potential new patients. We are only able to provide care within Colorado.

A National Leader in Medical Weight Loss

  • 20+ Years Experience: Serving the Colorado community as a specialized Weight Loss Doctor.
  • National Leadership: Past President of the Obesity Medicine Association (OMA), the nation’s largest society of clinicians dedicated to treating obesity.
  • Thought Leader: Nationally recognized speaker on the efficacy of GLP-1 medications and metabolic health.
  • Local Impact: Helping thousands of patients in the Denver Metro area reclaim their health.

Credentials, Research & Publications

author avatar
Dr. Lazarus Owner / Physician
Physician at Clinical Nutrition Center. Helping patients full-time with medical management of obesity and life-long weight control.

Latest Clinical Insights from Dr. Lazarus

As a leader in obesity medicine, Dr. Lazarus regularly reviews new clinical data on GLP-1 therapies and metabolic health. View his recent articles below:

Dr. Lazarus works alongside our registered dietitians — Stacy Gill, RDN and Mary Ellen Doukakis, RDN — to provide comprehensive, physician-supervised weight loss that combines medication, nutrition, and lifestyle support. Learn about our dietitian services →

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