Medical Weight Loss in Castle Rock, CO | Physician-Led Program | CNC
Board-certified obesity physician serving Castle Rock, CO. SECA body composition, GLP-1 meds, real clinical care. Free preview visit. 25 miles from Castle Rock.
Castle Rock has no shortage of weight loss programs. There are apps, med-spas, and telehealth services that will send a prescription to your pharmacy without ever meeting you. What Castle Rock doesn’t have — until now — is a dedicated, board-certified obesity physician practicing in person, less than 30 minutes away.
Clinical Nutrition Center is in Greenwood Village, approximately 25 miles from Castle Rock. Many Castle Rock patients make the drive because what they’re looking for is actual medicine, not a prescription template.
Your Nearest Physician-Led Weight Loss Clinic
Clinical Nutrition Center
5995 Greenwood Plaza Blvd #150
Greenwood Village, CO 80111
(303) 750-9454
We’re in Greenwood Village, serving Castle Rock and the greater Denver metro. The clinic is approximately 25 miles from Castle Rock — about 30 minutes via I-25 south to Arapahoe Road exit.
Why a Board-Certified Obesity Physician Beats Telehealth
Telehealth weight loss services are convenient. They also tend to be shallow. You fill out a form, get placed on a standard protocol, and receive automated check-ins that no one reads. The provider has your weight. They don’t have your labs. They haven’t measured your body composition.
That’s not medicine.
At CNC, you get something built around actual clinical practice:
- A physician who has been doing this since 2008. Dr. Ethan Lazarus is double board-certified in obesity medicine and past president of the Obesity Medicine Association. He has treated thousands of patients with obesity. This is not a side service — it’s his specialty.
- In-person SECA 554 body composition. Most providers measure nothing but weight. We use the SECA 554 to measure visceral fat, muscle mass, and body fat percentage — the data that actually drives clinical decisions.
- Real labs, real clinical decisions. We run actual lab panels and adjust medication doses based on how you’re actually responding — not a protocol template.
- Dose splitting for cost savings. GLP-1 medications are expensive. We help patients split doses appropriately so the medication is affordable long-term.
- Prior authorization support. Our team helps navigate insurance prior authorizations for GLP-1 medications — something that trips up most patients doing this alone.
- Someone who answers the phone. Not a chatbot. Not a voicemail queue. A person who knows your case.
Services Available at CNC
- GLP-1 medications: Wegovy, Zepbound, Mounjaro, oral Wegovy, Foundayo — learn about current options
- Physician visits: Dr. Ethan Lazarus, Jamie Shriver PA-C, Heather Thomas PA-C
- Registered dietitian visits: Stacy Gill RDN, Mary Ellen Doukakis RDN — nutrition support
- SECA 554 body composition analysis — the most accurate body assessment available
- Free preview visit — 30 minutes with our team before you commit
What Castle Rock Patients Are Saying
“I’m from Castle Rock. The drive to Greenwood Village is about 30 minutes and I do it because Dr. Lazarus actually practices medicine. Not just approves prescriptions — practices medicine. I’ve been on a GLP-1 for 14 months and I’ve lost 62 pounds. I wouldn’t trust this to an app.”
Tom B., Castle Rock, CO
“I tried the telehealth thing. Two years, different providers — none of them ever ran labs. When I came to CNC, Dr. Lazarus ordered a full panel and found out my thyroid wasn’t being managed properly. That’s when things actually started to work.”
Amanda S., Castle Rock, CO
See more patient success stories ›
Frequently Asked Questions
Do you have a clinic near Castle Rock?
Our clinic is at 5995 Greenwood Plaza Blvd #150 in Greenwood Village — approximately 25 miles from Castle Rock, about 30 minutes via I-25. Many Castle Rock patients find the drive worthwhile because they get actual in-person medical care.
Do you offer GLP-1 medications?
Yes. We prescribe Wegovy, Zepbound, Mounjaro, oral Wegovy, and Foundayo. Dr. Lazarus manages all medication plans personally.
What does the first visit cost?
See our Treatment Plans page for current visit pricing and program details. We offer a free 30-minute preview visit so you can meet the team before committing.
Do you take insurance?
We are out-of-network with most insurance plans. We provide superbills you can submit for potential reimbursement.
How is CNC different from telehealth?
We practice in-person obesity medicine. Dr. Lazarus reviews labs, performs SECA body composition analysis, and adjusts doses based on real clinical data. Telehealth providers follow protocol templates — we practice medicine.
Can I do telehealth visits?
Yes — after your initial in-person visit, some follow-up visits can be virtual. But your medication management, labs, and body composition tracking happen in person because that’s where the clinical decisions actually get made.
Ready to Start?
Clinical Nutrition Center
5995 Greenwood Plaza Blvd #150
Greenwood Village, CO 80111
(303) 750-9454
Schedule Your Free Preview Visit ›
Dr. Ethan Lazarus is a board-certified obesity medicine physician and the clinical director of Clinical Nutrition Center in Greenwood Village, Colorado, with over 22 years of experience helping patients achieve lasting metabolic health.





