About Calvin D. Lyons, M.D.
Serving Henderson, Las Vegas, Summerlin, North Las Vegas & All of Clark County
Compassionate, Minimally Invasive Colorectal Care
Calvin D. Lyons, M.D. is a board-certified colon and rectal surgeon specializing in minimally invasive outpatient treatments for colorectal conditions.
He believes in giving patients the comfort, clarity, and confidence they deserve — without the hospital stay or long recovery.
From routine colonoscopy screenings to in-office hemorrhoid treatments and complex colorectal surgery, Dr. Lyons delivers expert care focused on outcomes and patient experience.
A Surgeon with a Passion for Precision and Patient Care
Raised in Dallas, Texas, Dr. Lyons earned his degree in Biochemistry from Georgetown University, where he also lettered in varsity football.
He received his medical degree from the University of Texas Southwestern Medical School, followed by his general surgery training at Houston Methodist Hospital.
Advanced Fellowships
He went on to complete two advanced fellowships:
- Colon & Rectal Surgery Fellowship — Baylor University Medical Center at Dallas
- Minimally Invasive Colon & Rectal Surgery Fellowship — The University of Texas Medical School at Houston
Advanced Surgical Techniques
These dual fellowships have given Dr. Lyons expertise in leading-edge surgical techniques, including:
- Single-incision laparoscopic surgery (SILS)
- Robotic colon and rectal procedures
- Transanal minimally invasive surgery (TAMIS)
Board Certifications and Professional Memberships
The American Board of Surgery
Board Certified in General Surgery
The American Board of Colon and Rectal Surgery
Board Certified in Colon and Rectal Surgery
Fellow, American College of Surgeons
F.A.C.S.
Fellow, American Society of Colon and Rectal Surgeons
F.A.S.C.R.S.
These certifications represent a lifelong commitment to excellence and continuing education in the field of colorectal health.
Patient Philosophy
"My goal is to make every patient feel informed, respected, and comfortable. I focus on minimally invasive solutions whenever possible, because they allow for faster recovery, less pain, and better results."
— Calvin D. Lyons, M.D.
Whether you're seeking relief from hemorrhoids, need a screening colonoscopy, or require evaluation for a more complex issue, Dr. Lyons ensures that every visit is private, respectful, and designed around your comfort.
Outside the Office
When he's not in the clinic or operating room, Dr. Lyons enjoys exercising, traveling, and spending time with his wife and children. His down-to-earth personality and approachable manner help patients feel at ease from the very first conversation.
Next Step: Speak With Our Scheduler
If you'd like to learn more or schedule a private evaluation, our scheduler can walk you through your options and answer any questions.