The 20 Best Anal Cancer Doctors Near Me in Boulder, CO

Find the Top Anal Cancer Experts and Specialists

Last Updated: 09/26/2026

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MediFind found 194 doctor with experience in Anal Cancer near Boulder, CO. Of these, 154 are Experienced, 35 are Advanced and 4 are Distinguished.

Location
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194 providers found
    Advanced in Anal Cancer
    Radiation Oncology
    Advanced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Cancer Centers Of Colorado - St. Mary's Regional Hospital (Rad Onc)

    750 Wellington Avenue, 
    Grand Junction, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Kristen Riegert is a Radiation Oncologist practicing medicine in Grand Junction, Colorado. Dr. Riegert is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 16 other conditions, according to our data. Her clinical expertise encompasses Pleuropulmonary Blastoma, Lung Cancer, Small Cell Lung Cancer (SCLC), and Angiosarcoma. Dr. Riegert is board certified in American Board Of Radiology. Dr. Riegert is currently accepting new patients.

    Experienced in Anal Cancer
    Experienced in Anal Cancer
    Referral may be required

    Cancer Centers Of Colorado - Sloan's Lake

    1601 Lowell Boulevard, Suite 150, 
    Denver, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sudy Jahangiri is an Oncologist practicing medicine in Denver, Colorado. Dr. Jahangiri is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 7 other conditions, according to our data. Her clinical expertise encompasses Familial Colorectal Cancer, Lynch Syndrome, Colorectal Cancer, and Chronic Lymphocytic Leukemia (CLL). Dr. Jahangiri is board certified in American Board Of Internal Medicine and American Board Of Internal Medicine. Dr. Jahangiri is currently accepting new patients.

    Experienced in Anal Cancer
    Radiation Oncology
    Experienced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Lutheran Hospital - Cancer Centers Of CO Radiation Oncology

    400 Indiana Street, Suite 220, 
    Golden, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Tyler Kemmis is a Radiation Oncologist practicing medicine in Golden, Colorado. Dr. Kemmis is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 2 other conditions, according to our data. His clinical expertise encompasses Breast Cancer, Pleuropulmonary Blastoma, Metastatic Brain Tumor, and Lung Cancer. Dr. Kemmis is board certified in American Board Of Radiology. Dr. Kemmis is currently accepting new patients.

    Learn about our expert tiers
    Experienced in Anal Cancer
    Oncology | Hematology | Hematology Oncology
    Experienced in Anal Cancer
    Oncology | Hematology | Hematology Oncology
    Referral required

    Saint Joseph Hospital - Cancer Centers Of Colorado

    1825 North Marion Street, 
    Denver, CO 
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Lisa Ahrendt is an Oncologist and a Hematologist practicing medicine in Denver, Colorado. Dr. Ahrendt is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 4 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Inflammatory Breast Cancer. Dr. Ahrendt is board certified in American Board Of Internal Medicine. Dr. Ahrendt is currently accepting new patients.

    Experienced in Anal Cancer
    Colorectal Surgery
    Experienced in Anal Cancer
    Colorectal Surgery
    Referral may be required

    AdventHealth Medical Group Colorectal Surgery At Parker

    9403 Crown Crest Blvd Ste 200, 
    Parker, CO 
    Languages Spoken:
    English
    Accepting New Patients

    John Sun is a Colorectal Surgeon practicing medicine in Parker, Colorado. Dr. Sun is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 5 other conditions, according to our data. His clinical expertise encompasses Encopresis, Bowel Incontinence, Rectocele, Hernia Surgery, and Hemorrhoidectomy. Dr. Sun is currently accepting new patients.

    Experienced in Anal Cancer
    Radiation Oncology
    Experienced in Anal Cancer
    Radiation Oncology
    Referral may be required

    CommonSpirit Radiation Oncology St. Francis

    6031 E Woodmen Rd, Suite 150, 
    Colorado Springs, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Nathan Bennion is a Radiation Oncologist practicing medicine in Colorado Springs, Colorado. Dr. Bennion is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 7 other conditions, according to our data. His clinical expertise encompasses Angiosarcoma, Breast Cancer, Pleuropulmonary Blastoma, Non-Muscle Invasive Bladder Cancer, and Gastrostomy. Dr. Bennion is currently accepting new patients.

    Distinguished in Anal Cancer
    Distinguished in Anal Cancer
    Referral may be required

    Rocky Mountain Cancer Centers

    4700 Hale Parkway, Suite 400, 
    Denver, CO 
    Languages Spoken:
    English
    Accepting New Patients

    Allen Cohn is an Oncologist practicing medicine in Denver, Colorado. Dr. Cohn is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 56 other conditions, according to our data. His clinical expertise encompasses Colorectal Cancer, Neuroendocrine Tumor, Pancreatic Cancer, Lymphadenectomy, and Tissue Biopsy. Dr. Cohn is board certified in American Board Of Internal Medicine. Dr. Cohn is currently accepting new patients.

    Distinguished in Anal Cancer
    Radiation Oncology
    Distinguished in Anal Cancer
    Radiation Oncology
    Referral may be required

    University Of Colorado Hospital Authority

    10463 Park Meadows Dr Ste 111, 
    Lone Tree, CO 
    Languages Spoken:
    English

    Tracey Schefter is a Radiation Oncologist practicing medicine in Lone Tree, Colorado. Dr. Schefter is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 14 other conditions, according to our data. Her clinical expertise encompasses Anal Cancer, Adult Soft Tissue Sarcoma, Endometrial Cancer, and Lung Cancer.

    Distinguished in Anal Cancer
    Hematology | Oncology
    Distinguished in Anal Cancer
    Hematology | Oncology
    Referral may be required

    Rocky Mountain Cancer Centers

    10107 Ridgegate Pkwy Ste 200, 
    Littleton, CO 
    Languages Spoken:
    English
    Accepting New Patients

    Robert Jotte is a Hematologist and an Oncologist practicing medicine in Littleton, Colorado. Dr. Jotte is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 57 other conditions, according to our data. His clinical expertise encompasses Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Small Cell Lung Cancer (SCLC), and Pleuropulmonary Blastoma. Dr. Jotte is board certified in American Board Of Internal Medicine. Dr. Jotte is currently accepting new patients.

    Distinguished in Anal Cancer
    Radiation Oncology
    Distinguished in Anal Cancer
    Radiation Oncology
    Referral may be required

    Memorial Hospital

    525 Bob Peters Grv, 
    Colorado Springs, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Jeffrey Olsen is a Radiation Oncologist practicing medicine in Colorado Springs, Colorado. Dr. Olsen is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 32 other conditions, according to our data. His clinical expertise encompasses Anal Cancer, Posterior Fossa Tumor, Familial Prostate Cancer, and Familial Pancreatic Cancer. Dr. Olsen is currently accepting new patients.

    Advanced in Anal Cancer
    Advanced in Anal Cancer
    Referral may be required

    CommonSpirit Cancer Center Mercy

    1 Mercado Street, Suite 100, 
    Durango, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Cynthia Cathcart is an Oncologist practicing medicine in Durango, Colorado. Dr. Cathcart is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 43 other conditions, according to our data. Her clinical expertise encompasses Paget Disease of the Breast, Richter Syndrome, Chronic Lymphocytic Leukemia (CLL), Familial Colorectal Cancer, and Bone Marrow Aspiration. Dr. Cathcart is board certified in Medical Oncology-American Board Of Internal Medicine (ABIM) and Internal Medicine-American Board Of Internal Medicine (ABIM). Dr. Cathcart is currently accepting new patients.

    Advanced in Anal Cancer
    Radiation Oncology
    Advanced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Denver Radiation Oncology

    4700 Hale Pkwy, Ste 150, 
    Denver, CO 
    Languages Spoken:
    English
    Offers Telehealth

    Paige Dorn is a Radiation Oncologist practicing medicine in Denver, Colorado. Dr. Dorn is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 10 other conditions, according to our data. Her clinical expertise encompasses Breast Cancer, Pleuropulmonary Blastoma, Prostate Cancer, and Familial Prostate Cancer. Dr. Dorn is board certified in American Board Of Radiology.

    Experienced in Anal Cancer
    Experienced in Anal Cancer
    Referral required

    Rocky Mountain Cancer Centers LLP

    1800 Williams St, Ste 200, 
    Denver, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Michelle Levy is an Oncologist practicing medicine in Denver, Colorado. Dr. Levy is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 39 other conditions, according to our data. Her clinical expertise encompasses Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET), Neuroendocrine Tumor, HER-2 Positive Breast Cancer, and Paget Disease of the Breast. Dr. Levy is board certified in American Board Of Internal Medicine. Dr. Levy is currently accepting new patients.

    Advanced in Anal Cancer
    Radiation Oncology
    Advanced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Quest Diagnostics

    750 Wellington Ave, 
    Grand Junction, CO 
    Languages Spoken:
    English
    Accepting New Patients

    Douglas Rock is a Radiation Oncologist practicing medicine in Grand Junction, Colorado. Dr. Rock is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 10 other conditions, according to our data. His clinical expertise encompasses Prostate Cancer, Familial Prostate Cancer, Pleuropulmonary Blastoma, and Squamous Cell Carcinoma of the Anal Canal (SCAC). Dr. Rock is currently accepting new patients.

    Advanced in Anal Cancer
    Radiation Oncology
    Advanced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Uchealth Brain And Spine Tumor Multidisciplinary Clinic-Harmony Campus

    2121 E Harmony Rd Unit 160, 
    Fort Collins, CO 
    Languages Spoken:
    English, Spanish
    Accepting New Patients
    Offers Telehealth

    Arthur Liu is a Radiation Oncologist practicing medicine in Fort Collins, Colorado. Dr. Liu is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 38 other conditions, according to our data. His clinical expertise encompasses Posterior Fossa Tumor, Ependymoma, Atypical Teratoid Rhabdoid Tumor (ATRT), and Gliosarcoma. Dr. Liu is currently accepting new patients.

    Advanced in Anal Cancer
    Radiation Oncology
    Advanced in Anal Cancer
    Radiation Oncology
    Referral may be required

    Catholic Health Initiatives Colorado

    1 Mercado St Ste 100, 
    Durango, CO 
    Languages Spoken:
    English

    Steven Bush is a Radiation Oncologist practicing medicine in Durango, Colorado. Dr. Bush is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 9 other conditions, according to our data. His clinical expertise encompasses Squamous Cell Carcinoma of the Anal Canal (SCAC), Nasopharyngeal Carcinoma, Familial Prostate Cancer, and Prostate Cancer.

    Advanced in Anal Cancer
    General Surgery
    Advanced in Anal Cancer
    General Surgery
    Referral may be required

    Valley View Hospital

    1906 Blake Ave, 
    Glenwood Springs, CO 
    Languages Spoken:
    English

    Brad Nichol is a General Surgeon practicing medicine in Glenwood Springs, Colorado. Dr. Nichol is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 8 other conditions, according to our data. His clinical expertise encompasses Familial Colorectal Cancer, Squamous Cell Carcinoma of the Anal Canal (SCAC), Anal Cancer, Gallbladder Disease, and Hernia Surgery.

    Advanced in Anal Cancer
    Hematology | Oncology
    Advanced in Anal Cancer
    Hematology | Oncology
    Referral may be required

    AdventHealth Hematology And Oncology Castle Rock

    2360 Meadows Blvd Ste 300, 
    Castle Rock, CO 
    Languages Spoken:
    English

    Scott Herbert is a Hematologist and an Oncologist practicing medicine in Castle Rock, Colorado. Dr. Herbert is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 34 other conditions, according to our data. His clinical expertise encompasses Chronic Lymphocytic Leukemia (CLL), Familial Colorectal Cancer, Large-Cell Immunoblastic Lymphoma, and Colorectal Cancer.

    Advanced in Anal Cancer
    Advanced in Anal Cancer
    Referral may be required

    Rocky Mountain Cancer Centers

    4715 Arapahoe Ave, 
    Boulder, CO 
    Languages Spoken:
    English
    Accepting New Patients

    Mark Sitarik is an Oncologist practicing medicine in Boulder, Colorado. Dr. Sitarik is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. He is also highly rated in 44 other conditions, according to our data. His clinical expertise encompasses Paget Disease of the Breast, Breast Cancer, Adult Soft Tissue Sarcoma, and Bone Tumor. Dr. Sitarik is board certified in Medical Oncology-American Board Of Internal Medicine (ABIM), American Board Of Internal Medicine, and Internal Medicine-American Board Of Internal Medicine (ABIM). Dr. Sitarik is currently accepting new patients.

    Advanced in Anal Cancer
    Advanced in Anal Cancer
    Referral may be required

    Rocky Mountain Cancer Centers

    1700 S Potomac St, 
    Aurora, CO 
    Languages Spoken:
    English
    Accepting New Patients
    Offers Telehealth

    Sujatha Nallapareddy is an Oncologist practicing medicine in Aurora, Colorado. Dr. Nallapareddy is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. She is also highly rated in 58 other conditions, according to our data. Her clinical expertise encompasses Colorectal Cancer, Familial Colorectal Cancer, Lynch Syndrome, and Gastroenteropancreatic Neuroendocrine Tumor (GEP-NET). Dr. Nallapareddy is board certified in Hematology-American Board Of Internal Medicine (ABIM), Medical Oncology-American Board Of Internal Medicine (ABIM), American Board Of Internal Medicine, and Internal Medicine-American Board Of Internal Medicine (ABIM). Dr. Nallapareddy is currently accepting new patients.

    Showing 1-20 of 194

    Last Updated: 09/26/2026

    What is the definition of Anal Cancer?

    Anal cancer is cancer that starts in the anus. The anus is the opening at the end of your rectum. The rectum is the last part of your large intestine where solid waste from food (stool) is stored. Stool leaves your body through the anus when you have a bowel movement.

    Anal cancer is an uncommon type of cancer.

    When should I see an Anal Cancer doctor near Boulder, CO?

    There are various reasons why you may want to see a specialist, such as: 

    • Your primary care provider recommends it. 
    • Your condition requires expert knowledge and specialized care. 
    • Your symptoms persist or worsen despite treatment. 
    • You need specialized testing or procedures. 
    • You want a second opinion.  

    What should I consider when choosing an Anal Cancer doctor near Boulder, CO?

    It’s important to see a provider with expertise in your specific condition. Each provider profile in MediFind’s doctor database includes information on which conditions they treat, years of experience, research contributions, languages spoken, insurance plans accepted, and more.  

    How does MediFind rank Anal Cancer doctors near Boulder, CO?

    MediFind’s rankings are based on a variety of data sources, such as the number of articles a doctor has published in medical journals, participation in clinical trials and industry conferences, as well as the number of patients that provider sees for a given condition. Note that MediFind’s provider database is not based on user reviews, and providers do not pay to be included in the database. 

    What types of insurance are accepted by Anal Cancer doctors near Boulder, CO?

    Most profiles in MediFind’s doctor database include a list of insurance plans accepted by that provider. However, it’s a good idea to contact the provider’s office to make sure they still accept your insurance, then doublecheck by contacting your insurance plan to confirm they’re in network. 

    How can I book an appointment online with an Anal Cancer doctor near Boulder, CO?

    MediFind offers direct scheduling for certain providers using the “Request Appointment” button on that provider’s profile. If the schedule option is not available for a provider, tap the red “Show Phone Number” button on their profile to get their contact information. If you prefer to find providers who offer online scheduling, select “Schedules online” under the “Availability” category of the filter feature on the left side of the Anal Cancer doctor search results page. 

    Why is it important to get a second opinion from a different Anal Cancer doctor?

    Second opinions are an opportunity to confirm a diagnosis and its root cause, learn about alternative treatment options, or simply gain peace of mind. Many people, especially those with serious diagnoses, get second opinions so they can understand all their options and make informed decisions, so don’t hesitate to get one if you have any doubts or need more information or clarification regarding your care. Note that some insurance plans require second opinions, while others don’t cover second opinions, so be sure to confirm with your insurance provider first.   

    How can I prepare for my appointment with an Anal Cancer doctor near Boulder, CO?

    Prepare for your appointment by gathering the following items: 

    • Copies of medical records (dating back at least one year) 
    • Your medical history, including illnesses, medical conditions, surgeries, and other doctors you see 
    • Family history of disease 
    • List of current prescription drugs, over-the-counter medicines, vitamins, and herbal remedies or supplements including names and doses 
    • Allergies to medications, food, latex, insects, etc.  
    • List of questions and concerns 
    • Your insurance card 

    You might also contact the provider’s office to see if they offer transportation or childcare services or if you’re allowed to bring a loved one for support or to take notes during your visit. 

    What questions should I ask my Anal Cancer doctor?

    Here are some sample questions: 

    • Can you explain in simple terms what this condition is and how it’s treated? 
    • What symptoms or side effects should I watch for? 
    • What tests will be involved, and when can I expect results? 
    • Are there other specialists I need to see? 
    • What’s the best way to reach you if I have follow-up questions? 

    How can I learn about the latest clinical trials and research advances my Anal Cancer doctor may know about?

    MediFind’s Clinical Trials tool asks you a series of questions to help you narrow down your search by health condition, age, gender, location, how far you’re willing to travel, and more. Each question you answer filters down the number of trials until you find the ones that are most relevant to you. 

    MediFind’s Latest Advances tool features summaries of recent articles published in medical journals. We use cutting-edge technology to scour medical publication databases for the latest research advancements on any given condition, then we simplify this information in a way that’s useful and easy to understand. 

    Can I filter my search to show male or female Anal Cancer doctors near Boulder, CO?

    Look for the filter feature on the left side of the Anal Cancer doctor search results page. Select “Female” or “Male” under the “Gender” category to search for female or male providers exclusively. If the “Any” option is selected, it will pull results for both male and female providers. 

    Can I filter my search to find an Anal Cancer doctor that offers video calls?

    Look for the filter feature on the left-side of the Anal Cancer doctor search results page. Select “Offers telehealth visits” under the Availability category to search for providers who offer virtual appointments (video calls). 

    Reviewed on: 11/11/24  

    By: MediFind Medical Staff 

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