Compassionate Colorectal Care in Las Vegas
Expert treatment of hemorrhoids, colonoscopy screenings, colorectal cancers, and other conditions of the colon and rectum- with quick recovery and personalized attention.
Board-Certified Colon & Rectal Surgeon • Same-Day Appointments • Private, Outpatient Procedures
American Board of Colonand Rectal Surgery
Serving the Metro Las Vegas Area
Located in Henderson, Dr. Lyons welcomes patients from Las Vegas, Henderson, North Las Vegas, Summerlin, and surrounding communities.
Schedule Your Appointment
Request a call-back and our scheduler will help you find the next available time with Dr. Lyons.
American Board of Colonand Rectal Surgery
Serving the Metro Las Vegas Area
Located in Henderson, Dr. Lyons welcomes patients from Las Vegas, Henderson, North Las Vegas, Summerlin, and surrounding communities.
Board-Certified Expertise. Minimally Invasive Results.
Calvin D. Lyons, M.D., F.A.C.S., F.A.S.C.R.S., is double board-certified by both the American Board of Surgery and the American Board of Colon and Rectal Surgery. With advanced fellowship training from Baylor University Medical Center at Dallas and The University of Texas Medical School at Houston, Dr. Lyons specializes in minimally invasive procedures that provide fast recovery and long-lasting relief.
He believes every patient deserves compassionate, discreet care — and clear guidance from start to finish.
Comfortable, Outpatient Solutions for Common Concerns
Whether you need a routine colonoscopy, relief from hemorrhoid discomfort, or an expert evaluation for another proctology concern, our Las Vegas practice offers care designed around your comfort, privacy, and recovery.
Colonoscopy
Early detection for peace of mind. Sedation options available. Most patients resume normal activity the next day. Learn more about colonoscopy →
Hemorrhoid Relief
Quick, in-office treatments like rubber band ligation. Minimal discomfort. No hospital stay. Learn more about hemorrhoid treatment →
Private Proctology Evaluation
If you're experiencing bleeding, pain, or other changes, we offer discreet consultations in a comfortable setting.
From Consultation to Comfort — What the Process Looks Like
1. Private Evaluation
You'll meet directly with Dr. Lyons for a thorough yet discreet consultation.
2. Personalized Treatment Plan
Every recommendation is based on your goals, comfort, and health history.
3. Outpatient Procedure
Most proctology treatments are performed right in our Las Vegas office — no hospital stay required.
4. Quick Recovery & Ongoing Care
Patients typically return home the same day with minimal downtime.
We'll help you find a convenient time and answer your questions.
Meet Dr. Calvin D. Lyons
A native of Dallas, Texas, Dr. Lyons attended Georgetown University, earning his B.S. in Biochemistry while lettering in varsity football. He received his M.D. from the University of Texas Southwestern Medical School and completed his general surgery residency at Houston Methodist Hospital.
He then completed dual fellowships in Colon & Rectal Surgery and Minimally Invasive Surgery through Baylor University Medical Center and the University of Texas Medical School.
As a board-certified proctologist, Dr. Lyons is certified in both General Surgery and Colon & Rectal Surgery and is a Fellow of the American College of Surgeons and the American Society of Colon and Rectal Surgeons.
When not treating patients, he enjoys exercising, traveling, and spending time with his wife and kids. Read Dr. Lyons' full biography →
Thousands of Procedures. One Goal — Your Comfort and Health.
10+ Years of Proctology Experience
Specialized expertise in Colon & Rectal Surgery with thousands of successful procedures.
Fellowship-Trained
Advanced training in Minimally Invasive Techniques for faster recovery.
Easy Appointment Scheduling
We understand your time is valuable. We will work diligently to schedule in the office as soon as possible.
HIPAA-Secure and Confidential
Your privacy and medical information are always protected.
Most Insurance Plans Accepted
We work with most major insurance providers. Our scheduler can help verify your coverage.
Take the First Step Toward Relief and Clarity
Whether you're due for a colonoscopy or looking for relief from discomfort, our Las Vegas proctology team is here to help. You'll speak directly with our scheduler, who can answer your questions, review insurance, and reserve your appointment with Dr. Lyons.