Experience When It Matters Most

Our statewide physician network includes nationally recognized experts in cancer care and research—experience you want and deserve when it matters most.

Have a question? Call the clinic location closest to you, or our main number, 1-888-259-7622.

Comprehensive Care, Proven Outcomes

Since 1992, Rocky Mountain Cancer Centers (RMCC) has been a leader in cancer care. We began as a small group practice of six physicians with a new approach to treating cancer—administering chemotherapy on an outpatient basis—and have since developed into Colorado's largest and most comprehensive provider of cancer care with more than 50 physicians treating patients in 20 community-based locations across the state.

Through our culture of respect and collaboration we practice evidence-based medicine and participate in clinical research to create value and positive outcomes for our patients and families, referring physicians and payers.

Why Choose Us

Expertise in Rare and Common Cancers

No matter what cancer type you've been diagnosed with our team of nationally recognized doctors and support providers are here to help with personalized treatment plans that include the most advanced treatment options and therapies.

Experience When It Matters Most

Our statewide physician network includes nationally recognized experts in cancer care and research—experience you want and deserve when it matters most.

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Cancer Care Close To Home

With 20 outpatient cancer treatment centers across Colorado, we provide convenient, cost-effective, comprehensive cancer care close to home. Our state-of-the-art facilities have everything you need to fight cancer.

Research Trials

A Phase 2 Open Label, Multi-Center, Multinational, Randomized, Parallel Design Study Investigating The Efficacy and Safety Of GTx-024 On Metastatic or Locally Advanced ER+/AR+ Breast Cancer (BC) in Postmenopausal Women (G200802), NCT02463032

PURPOSE OF THIS CLINICAL RESEARCH TRIAL: The purpose of NCT02463032 to determine if GTx-024 at different dosages (9 mg or 18 mg) is effective and safe in the treatment of patients with metastatic or locally advanced ER+ and AR+ breast cancer in postmenopausal women. MORE DETAIL ON NCT02463032 BREAST CANCER TRIAL: 15131 / Re-Open 7-21-2016 […]

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Treatment and Services


Laboratory testing is a key component of detection, diagnosis and treatment of cancers and blood disorders. Most patients are required to have blood drawn and laboratory work done immediately before a visit with their doctor or before chemotherapy. Our on-site laboratories provide rapid turnaround for many tests including Complete Blood Count CBC), clotting tests, tumor markers and chemistry tests. Having laboratory services on site as part of our full spectrum of comprehensive cancer care helps our doctors evaluate and prescribe treatment for our patients as quickly as possible.

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Recent News

Vitamin D could be an effective weapon in the fight against breast and other cancers.

Most of us have gotten the message about protecting our skin from too much sun exposure. But in slathering on sunscreen to reduce the risk of one cancer, are we depleting our stores of vitamin D – a vitamin that might protect us from other cancers?

The medical community hasn’t reached a collective agreement on the issue. Some studies have found a link between vitamin D deficiency and increased risk for breast cancer, as well as colon cancer and even non-Hodgkin’s lymphoma, while other studies have found no connection. This spring, researchers published findings in the journal Endocrinology linking vitamin D deficiency with increased risk that breast cancer will spread outside the breast (metastasize).

Research is ongoing, although it is difficult to pinpoint a link between vitamin D and cancer, in part because levels of the vitamin change in the body and because dietary studies can’t quantify how much vitamin D people get from sunshine. But Rocky Mountain Cancer Centers oncologist Hyun Sue Kim, MD, isn’t waiting for a definitive decision; she’s making sure her Colorado Springs breast cancer patients get plenty of the essential vitamin, and of calcium.

“I’ve always been very aggressive about maintaining patients’ bone health,” Kim says. She carefully monitors vitamin D levels, because the association between low vitamin D and greater breast cancer risk is fairly well established. “We wish we knew the mechanism – we don’t yet – but studies have shown people with good bone health have less breast cancer and have fewer recurrences of breast cancer,” Kim says.

She initially began checking vitamin D levels in her patients because the body needs it to deliver calcium to the bones. Her findings weren’t what she expected: Most patients’ calcium levels met recommended goals, but vitamin D deficiency was common. “We are closer to the sun because of our high altitude, so I was surprised when I checked vitamin D – only a few women were at recommended levels without supplements.”

The Institute of Medicine recommends 600 “international units” per day of vitamin D up to age 70, and 800 units after age 70. Most supplements come in doses measured by international units.

It’s not hard to surmise why so many women are deficient in vitamin D, which we primarily obtain from sun exposure, Kim says. “We are mostly indoors now. Few of us work outside. And even if we are outdoors, we put on so much sunscreen, we aren’t getting vitamin D.”

Kim isn’t advising people to run out and bake themselves in the sun. There are plenty of other sources, including fatty fish, fish oil, and milk and other dairy products that have been fortified with vitamin D. And, she recommends supplements. “I tell people to take 2000 to 5000 international units a day,” she says. While the link is still being researched, it might just be another weapon in the fight against cancer.