We accept Telehealth appointments. Please schedule a virtual visit here.


Welcome to Colorado Colon & Rectal Specialists

Serving the Denver metro area and beyond, Colorado Colon & Rectal Specialists is dedicated exclusively to the treatment of conditions of the colon and rectum. Our proctologist, Lisa Perryman, MD, is a fellowship-trained and board certified colon and rectal surgeon and proctologist. We understand the challenges people may face who experience colon and rectal problems. Accordingly, we strive to treat every patient with dignity and respect, and to provide the best level of professional care, whether that care be surgical or non-surgical. Our goal is to treat every patient with the most effective, most comfortable and in the least invasive manner possible. It is our hope that you feel welcome, at ease, and involved in your care each time you visit our office. We consider it a privilege to help our patients who have trusted us with their care.

Lisa A. Perryman, MD, FACS, FASCRS

Colon and Rectal Surgeon & A Private Medical Practice located in the Denver Metropolitan Area, CO

Lisa A. Perryman, MD, FACS, FASCRS, is the founder and president of Colorado Colon & Rectal Specialists in the Denver metropolitan area of Colorado. Dr. Perryman is board certified in colon and rectal surgery and is a fellow of both the American College of Surgeons and the American Society of Colon and Rectal Surgeons. She provides one of the best comprehensive diagnostic and treatment services, including laparoscopic surgery for colorectal cancer, and for a variety of acute and chronic conditions, such as: hemorrhoids, anal fistulas and abscesses, anal itching, pilonidal cysts, anal skin tags, and rectal bleeding and pain.

Prior to founding Colorado Colon & Rectal Specialists, our very own proctologist, Dr. Perryman, served as the chief of general surgery at a Salt Lake City, Utah, hospital. She also participated in clinical immunology research at the Barbara Davis Center for Childhood Diabetes in Aurora, Colorado, and at Amgen, Inc., in Boulder, Colorado. She affiliates with Centura Health hospital in Parker, Colorado, HealthOne in Lone Tree, Colorado, and UCHealth Highlands Ranch Hospital.

Dr. Perryman earned her medical degree and a master of science degree in pathology from the Chicago Medical School in Chicago, Illinois, graduating in the top 5% of her medical school class and earning numerous honors and awards. She went on to complete a seven-year residency in general surgery at the University of Minnesota in Minneapolis before finishing her fellowship in colon and rectal surgery at Ochsner Medical Center in New Orleans, Louisiana.

Dr. Perryman makes herself available to patients 24/7, 365 days a year. She takes a personalized approach to treatment and care, encouraging patients to partner in the management of their health conditions. Dr. Perryman is also highly regarded for her colonoscopic adenoma detection rate, which is 27% higher than the national benchmark and increases annually.

Recognized as a top performing physician and colorectal surgeon in both quality patient care and cost containment, Dr. Perryman was selected as a Premium Program Tier 1 Physician by UnitedHealthcare. She meets cost-efficiency standards and engages patients in the health care decision-making process.

Her practice was awarded the Transforming Clinical Practice Initiative (TCPi) for excellence in value-based and patient-centric health care services in 2018. Fewer than 50 have completed TCPi in Colorado, and nationwide, less than 16% of practices participate. Dr. Perryman was also selected by 9NEWS/NBC to launch its March Colon Cancer Awareness efforts, along with Buddy Check 9. She discussed colorectal cancer risk factors, its symptoms, and the importance of early detection. Her public service announcement (PSA) was distributed throughout Colorado and to 46 major markets across the country.

To schedule a consultation with Dr. Perryman, call Colorado Colon & Rectal Specialists or request an appointment through the online booking system.


  • Why See a Colon & Rectal Surgeon?

    Colon and rectal surgeons or proctologist have completed advanced training in the treatment of colon and rectal problems, making them experts in the surgical and non-surgical treatment of colon and rectal disorders. In addition to full training in general surgery, they have completed an intensive fellowship in colon and rectal surgery. As specialists in evaluation of lower intestinal disorders, colon and rectal surgeons treat benign and malignant conditions, perform routine screening examinations, and treat problems of the small intestine, colon, rectum, and anus. If you are experiencing problems in any of these areas, we can help you.

We’re Now Offering Telehealth
2019 Novel COVID Coronavirus and Patient Safety Notification


We’re Open!
We are taking extra measures to provide a COVID-19 safe environment, including:

• Wearing masks for all patient interactions.

• Reducing patient appointments and staff size to minimize contact.

• Screening staff twice daily.

• Wiping door handles and counters after every patient visit.

Most major insurances accepted

Should you have any questions, kindly call the office

Anthem Blue Cross Blue Shield
Bright Health
GWH-Cigna (formerly Great West Healthcare)
The Boon Group



Please call our office for more information or to schedule.

Dr. Perryman presents medical education seminars on colorectal conditions.

Rectal Bleeding Without Hemorrhoids: 3 Known Causes

It’s never a comfortable feeling to find signs of blood after a bowel movement. While it’s common with some types of hemorrhoids, it can also be a symptom of other colorectal issues. Here are three other causes of rectal bleeding.

Pilonidal Cleft Lift Surgery

Pilonidal disease is a chronic infection of the skin near the top of the crease of the buttocks. Sometimes misdiagnosed as ingrown hair or a pilonidal cyst, the disease often creates a cavity, or sinus, below the skin that requires surgery to correct.

2 Types of Hemorrhoids and What They Mean

About half of all Americans experience hemorrhoids by the time they reach the age of 50. Caused by swollen vascular tissue at the end of the digestive tract, hemorrhoids’ symptoms range from annoying to quite painful. Read on to learn more about the two ty


Words from our patients

  • 5 star

    "Dr. Perryman and her team provide extraordinary care along with providing an enjoyable patient experience. You are in excellent hands..."

    Mark D.
  • 5 star

    "They are professional and thorough yet treated me as an individual in every stage of the process... I was so well cared for and in such competent hands..."

    Kelley N.
  • 5 star

    "I walked into the office in pain and walked out happy. The staff was amazing. So friendly, helpful, empathetic... Highly recommend this team."

    Merit K.
  • Google

    "Dr Perryman is a thoroughly caring and professional person. Five of my neighbors feel the same way."

    Jane H.
  • Google

    "Great doctor, awesome to see. Always smiling, very helpful and caring"

    Joe K.
  • Healthgrades

    "Dr. Lisa Perryman and her team saved my life in 2011."

    Cynthia P.
  • Healthgrades

    "I love this office, Dr Perryman and her very friendly and comforting staff."

  • Healthgrades

    "Dr. Perryman has to be one of the most concerned, mindful, understanding Drs."

  • Healthgrades

    "I would highly recommend Dr.Perryman,very kind and caring,and a great surgeon."

    Janet H.
See what patients are saying about us!



Colorado Colon & Rectal Specialists
9397 Crown Crest Blvd, Suite 301
Denver Metropolitan Area

Parker, CO 80138
Phone: 303-840-8822
Fax: 303-840-8824

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