Hematologists and Oncologists in Colorado
Data updated monthly · Last refresh October 2026
214 Hematology & Oncology providers practice in Colorado, including 106 (50%) offering telehealth. The largest concentration is in Denver. Profiles include federal Open Payments records of money received from drug and device companies in 2025. Listings are drawn from federal public records and are not endorsements.
214providers
106telehealth
Denvertop city
Hematology & Oncology by city in Colorado
Choose a city to see providers there.
Where Hematologists and Oncologists in Colorado practice
From CMS Medicare enrollment records covering 135 of the 214 providers listed here (63%). Providers who do not bill Medicare are not included in these figures.
1%solo or small practice (under 10 clinicians)
10%mid-size group (10 to 99)
88%large group or health system (100+)
Largest practice groups
| Group (as registered with Medicare) | Hematologists and Oncologists | All clinicians in group | Main city |
| Rocky Mountain Cancer Centers LLP | 38 | 131 | Colorado Springs |
| University Physicians Inc.orporated | 21 | 3,189 | Aurora |
| Poudre Valley Medical Group LLC | 15 | 2,425 | Colorado Springs |
| Colorado Permanente Medical Group PC | 14 | 1,325 | Denver |
| Healthone Clinic Services - Oncology Hematology LLC | 11 | 47 | Denver |
Hospitals where they hold privileges
| Hospital | City | Ownership | CMS star rating | Hematologists and Oncologists affiliated |
| University of Colorado Hospital Authority | Aurora | Government | 5 of 5 | 26 |
| Uch-Memorial Health System | Colorado Springs | Government | 4 of 5 | 23 |
| HCA Healthone Presbyterian St. Lukes | Denver | Government | 2 of 5 | 22 |
| Uchealth Highlands Ranch Hospital | Highlands Ranch | Nonprofit | 5 of 5 | 16 |
| Longs Peak Hospital | Longmont | Nonprofit | 5 of 5 | 14 |
Sources: CMS Doctors and Clinicians (August 2026) and Facility Affiliation files (August 2026); hospital ownership type and overall star rating from CMS Hospital General Information (July 2026). A clinician in several groups is counted once, in the largest group they bill through. Ownership type is what the hospital reports to CMS; it does not show private equity or other investor ownership. How we build this directory.
Hematology & Oncology providers in Colorado
Listed by city, largest first. Payment figures come from the federal Open Payments program, which requires drug and device companies to report what they pay physicians for consulting, speaking, meals, travel and royalties. A disclosed payment is a financial relationship, not evidence of wrongdoing, and many totals reflect a single meal. Figures cover calendar year 2025.
Dr. Maureen Cooper, M.D.Alamosa, CO · No drug or device payments recorded (2025) ·
(719) 589-8153 Dr. Owhofasa Agbedia, M.D., MPHAlamosa, CO · No drug or device payments recorded (2025) ·
(719) 589-3000 Dr. Ajay Major, MD, MBAAurora, CO · $23,950 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Alexander Neuwelt, MDAurora, CO · No drug or device payments recorded (2025) ·
(503) 703-0720 Dr. Andrew Kent, MD PHDAurora, CO · $45 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Angela Davies, M.D.Aurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Anosheh Afghahi, MDAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Ara Metjian, MDAurora, CO · $33,476 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Bradley Haverkos, MDAurora, CO · $14,315 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Breelyn Wilky, MDAurora, CO · $3,557 in drug and device payments (2025) · Telehealth ·
(720) 848-4289 Dr. Cailin Collins, MDAurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0000 Dr. Christine Mcmahon, MDAurora, CO · $3,535 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Daniel Pollyea, MDAurora, CO · $31,118 in drug and device payments (2025) · Telehealth ·
(720) 777-1234 Dr. Daniel Sherbenou, MD, PHDAurora, CO · $1,545 in drug and device payments (2025) · Telehealth ·
(803) 213-2731 Dr. David Faragher, MDAurora, CO · No drug or device payments recorded (2025) ·
(303) 418-7600 Dr. Douglas Reznick, MDAurora, CO · $28,315 in drug and device payments (2025) · Telehealth ·
(303) 418-7600 Dr. Enkhtsetseg Purev, M.D.Aurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Gemlyn George, MDAurora, CO · $3,285 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Genevieve Moyer, M.D.Aurora, CO · $15 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Haley Simpson, MD, PHDAurora, CO · $4,227 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Jennifer Diamond, MDAurora, CO · $5,609 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. John Burke, MDAurora, CO · $49,602 in drug and device payments (2025) · Telehealth ·
(303) 418-7600 Dr. Jorge Monge Urrea, M.D.Aurora, CO · $4,144 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Kian Rahbari, MDAurora, CO · No drug or device payments recorded (2025) ·
(303) 724-9238 Dr. Madeleine Kane, M.D.Aurora, CO · No drug or device payments recorded (2025) · Telehealth ·
(720) 848-0300 Dr. Manali Kamdar, MDAurora, CO · $44,186 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Marc Schwartz, MDAurora, CO · $34 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Mathew Angelos, MD, PHDAurora, CO · $5,499 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Michael Parra, MDAurora, CO · No drug or device payments recorded (2025) ·
(303) 994-0729 Dr. Nicholas Dibella, MDAurora, CO · No drug or device payments recorded (2025) ·
(303) 418-7600 Dr. Ryan Weight, D.O.Aurora, CO · $18,367 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Steven Bair, MDAurora, CO · $91 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Sujatha Nallapareddy, MDAurora, CO · $33,457 in drug and device payments (2025) · Telehealth ·
(303) 418-7600 Dr. Thomas Flaig, MDAurora, CO · $224 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Tomer Mark, MD, MSCAurora, CO · No drug or device payments recorded (2025) ·
(720) 848-0000 Dr. Vu Nguyen, M.D.Aurora, CO · $377 in drug and device payments (2025) · Telehealth ·
(720) 848-0000 Dr. Austin Poole, MDBoulder, CO · $2,880 in drug and device payments (2025) · Telehealth ·
(303) 385-2000 Dr. David Andorsky, MDBoulder, CO · $7,820 in drug and device payments (2025) · Telehealth ·
(303) 385-2000 Dr. Gregory Britt, M.D.Boulder, CO · No drug or device payments recorded (2025) · Telehealth ·
(303) 385-2000 Dr. Jenny Fox, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. John Fleagle, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. Leslie Busby, MDBoulder, CO · $473 in drug and device payments (2025) ·
(303) 385-2000 Dr. Lori Jensen, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. Mark Sitarik, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. Patrick Moran, MDBoulder, CO · No drug or device payments recorded (2025) ·
(303) 385-2000 Dr. Jing Xi, M.D.Centennial, CO · $24,101 in drug and device payments (2025) · Telehealth ·
(303) 805-7744 Dr. Adam Myers, MDColorado Springs, CO · No drug or device payments recorded (2025) ·
(719) 577-2555 Conditions Hematology & Oncology providers in Colorado commonly treat
Patients often search by condition rather than specialty. These are conditions typically managed by Hematology & Oncology providers. Individual practices vary, so confirm with the provider before booking.
- Breast cancer
- Lung cancer
- Lymphoma
- Leukemia
- Anemia
- Blood disorders
Common questions
How many Hematology & Oncology providers are in Colorado?There are 214 Hematology & Oncology providers with active NPI records practicing in Colorado, according to federal NPPES data refreshed monthly.
Do Hematology & Oncology providers in Colorado offer telehealth?Yes. 106 of the 214 Hematology & Oncology providers in Colorado (about 50%) report offering telehealth services in CMS data.
Which cities in Colorado have the most Hematology & Oncology providers?Denver (57), Aurora (37), Colorado Springs (24) have the highest concentration of Hematology & Oncology providers in Colorado.
How many Hematology & Oncology providers in Colorado received drug or device company payments?113 of 214 Hematology & Oncology providers in Colorado (53%) received at least one payment from a drug or device company in 2025, according to the federal Open Payments program.
What conditions do Hematology & Oncology providers in Colorado treat?Hematology & Oncology providers commonly treat breast cancer, lung cancer, lymphoma, leukemia, anemia and related conditions. Individual practices vary, so confirm with the provider before booking.
Where does this data come from?Provider counts and profiles come from the federal NPPES registry and CMS Doctors and Clinicians files. Payment figures come from the CMS Open Payments program for calendar year 2025. The directory refreshes monthly.
Do most Hematologists and Oncologists in Colorado work in independent practices or large health systems?Among 135 Hematologists and Oncologists in Colorado enrolled in Medicare, 1% bill through a solo or small practice with fewer than 10 clinicians, 10% through a mid-size group of 10 to 99, and 88% through a large group or health system with 100 or more clinicians, according to CMS enrollment records.
Which hospitals do Hematologists and Oncologists in Colorado work at?According to CMS facility affiliation records, the Colorado hospitals where the most Hematologists and Oncologists hold privileges are University of Colorado Hospital Authority in Aurora; Uch-Memorial Health System in Colorado Springs; HCA Healthone Presbyterian St. Lukes in Denver.
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