Tracey Schefter is a Radiation Oncologist in Aurora, Colorado. Dr. Schefter is rated as an Elite provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Anal Cancer, Adult Soft Tissue Sarcoma, Lung Cancer, and Endometrial Cancer.

Dr. Kristen Riegert holds a Bachelor of Science in Biology from Pacific University in Forest Grove, OR, and a Doctor of Medicine from Oregon Health & Science University in Portland. She completed an internal medicine internship with Providence Portland Medical Center and a radiation and oncology residency with the University of Arizona in Tucson. In 2014, Dr. Riegert began working as a radiation oncologist at a Walla Walla, WA hospital. She spent the next two decades there. In 2024, she moved to Grand Junction, CO, and joined Intermountain Health.She enjoys hiking, camping, and exploring the outdoors with her sons when she is not at work. Dr. Riegert is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Pleuropulmonary Blastoma, Lung Cancer, Small Cell Lung Cancer (SCLC), and Angiosarcoma.

Dr. Kyle Work joined the Cancer Centers of Colorado at St. Mary?s Medical Center oncology team in 2018. He is a hematologist-oncologist. Dr. Work treats all types of cancers with a special interest in head and neck cancer, lung cancer and genitourinary cancers.Dr. Work is originally from Tulsa, Oklahoma where he graduated from the University of Tulsa with a degree in biology, and earned his medical degree at Oklahoma State University. He then moved to Kansas City where he completed his internal medicine residency and hematology / oncology fellowship at the University of Kansas Health System. During his hematology and oncology fellowship, he served as chief fellow for two years.Dr. Work�is an investigator involved in clinical research trials in the area of hematology and medical oncology. His clinical research focus includes�head and neck cancers,�brain and lung cancers.�When he is not working, he enjoys mountain biking, camping, and hiking with his wife and golden retrievers. Dr. Work is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Lung Cancer, Pleuropulmonary Blastoma, Squamous Cell Lung Carcinoma, and EGFR Positive Lung Cancer.

Originally from Ohio, Dr. Jahangiri earned her medical degree and completed both her internship and residency at Northeast Ohio Medical University College of Medicine in Rootstown, Ohio. She went on to complete a fellowship in hematology and oncology at the University of Rochester Medical Center in Rochester, New York. Dr. Jahangiri has been practicing medicine for 6 years. Her clinical interests include gastrointestinal cancers, blood disorders and blood cancers.�I believe strongly in providing high quality oncology care for patients on the Western Slope. Cancer is so scary, and I want to help patients understand their diagnosis and options so that they can decide the best path for them. My job is to serve as a guide and support through that process.�When not working, Dr. Jahangiri enjoys running, a good book and Broadway shows. Often, she can be found partaking in one of Colorado�s many outdoor activities with her husband, three children and shelter dog. Dr. Jahangiri is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Colorectal Cancer, Familial Colorectal Cancer, Multiple Myeloma, and Virilizing Ovarian Tumor.

Boris Sepesi is a Thoracic Surgeon and a General Surgeon in Aurora, Colorado. Dr. Sepesi is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Lung Adenocarcinoma, Thymectomy, and Endoscopy.

John Sun is a General Surgeon and a Colorectal Surgeon in Denver, Colorado. Dr. Sun is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Encopresis, Bowel Incontinence, Rectocele, Hernia Surgery, and Hemorrhoidectomy.

Dr. Kemmis was born and raised in South Dakota. He earned a bachelor�s degree from the University of South Dakota and then continued his education at the University of South Dakota Sanford School of Medicine, where he received his medical degree. From a young age, Dr. Kemmis took interest in the practice of medicine. He found his passion in Radiation Oncology and loves the opportunity to care for cancer patients by offering advanced and rapidly progressive treatments.�Dr. Kemmis� philosophy of care is, �I enjoy engaging patient in all treatment options available for their specific disease. �I am here to educate and assist patients in making the best decision for their specific needs.� He would like for his patients to know that his goal is to help educate first and foremost, even if treatment is not chosen.Dr. Kemmis�is an investigator involved in clinical research trials in the areas of breast surgery. His research includes surgical treatment of the breast.�When he is not at work, Dr. Kemmis enjoys outdoor activities with his family.Dr. Kemmis is excited to provide treatment options for all types of cancer at Lutheran Medical Center. Dr. Kemmis is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Breast Cancer, Pleuropulmonary Blastoma, Metastatic Brain Tumor, and Lung Cancer.

Dr. Ahrendt is a board certified medical oncologist originally from Boston, Massachusetts. She earned a bachelor's degree in biology from Washington University in St. Louis, Missouri, followed by a medical degree from the Drexel University Hahnemann School of Medicine in Philadelphia, Pennsylvania. Dr. Ahrendt completed an internship, residency and a combined hematology/oncology fellowship at Tufts New England Medical Center in Boston. Dr. Ahrendt pursued a career in medicine because of her desire to help those in need and being able to make an impact on people�s ability to get through disease and difficult situations.�The key to successful treatment of cancer is having a team-based approach. The relationship between the patient, family members, doctors, nurses and support services is so important.���Dr. Ahrendt�s clinical interests include breast cancer, colorectal cancer, lung cancer, chronic myeloid leukemia (CML), and chronic lymphocytic leukemia (CLL). Dr. Ahrendt is an investigator involved in clinical research trials in the areas of medical oncology and hematology. Her research includes oncology and hematology.�She has been practicing oncology in Denver since 2004 and is currently accepting new patients.�When she is not at work, Dr. Ahrendt enjoys skiing, camping, hiking and fishing with her husband and son. Dr. Ahrendt is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Breast Cancer, Paget Disease of the Breast, Angiosarcoma, and Inflammatory Breast Cancer.

Nathan Bennion is a Radiation Oncologist in Pueblo, Colorado. Dr. Bennion is rated as an Experienced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Angiosarcoma, Breast Cancer, Pleuropulmonary Blastoma, Non-Muscle Invasive Bladder Cancer, and Gastrostomy. Dr. Bennion is currently accepting new patients.

Jeffrey Olsen is a Radiation Oncologist in Aurora, Colorado. Dr. Olsen is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Anal Cancer, Posterior Fossa Tumor, Familial Prostate Cancer, and Familial Pancreatic Cancer. Dr. Olsen is currently accepting new patients.

Michael Monticelli is a Hematologist Oncology specialist and a Hematologist in Colorado Springs, Colorado. Dr. Monticelli is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Upper Tract Urothelial Carcinoma (UTUC), Large-Cell Immunoblastic Lymphoma, Familial Colorectal Cancer, and Anal Cancer.

Uchenna Njiaju is an Oncologist and a Hematologist in Colorado Springs, Colorado. Dr. Njiaju is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Paget Disease of the Breast, Breast Cancer, Anal Cancer, and Monoclonal Gammopathy of Undetermined Significance (MGUS). Dr. Njiaju is currently accepting new patients.

Allen Cohn is a Hematologist in Steamboat Springs, Colorado. Dr. Cohn has been practicing medicine for over 41 years and is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Colorectal Cancer, Neuroendocrine Tumor, Pancreatic Cancer, Lymphadenectomy, and Tissue Biopsy. Dr. Cohn is currently accepting new patients.

Muath Dawod is a Hematologist Oncology specialist and a Hematologist in Denver, Colorado. Dr. Dawod is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Myelodysplastic Syndrome (MDS), Paget Disease of the Breast, Familial Colorectal Cancer, and Anal Cancer.

Timothy Waxweiler is a Radiation Oncologist in Aurora, Colorado. Dr. Waxweiler is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Lung Cancer, Posterior Fossa Tumor, Thymic Epithelial Tumor, and Anal Cancer. Dr. Waxweiler is currently accepting new patients.

Robert Jotte is a Hematologist Oncology specialist and an Oncologist in Lone Tree, Colorado. Dr. Jotte is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Lung Cancer, Non-Small Cell Lung Cancer (NSCLC), Small Cell Lung Cancer (SCLC), and Pleuropulmonary Blastoma.

Martin Mccarter is a Surgical Oncologist and a General Surgeon in Aurora, Colorado. Dr. Mccarter is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Melanoma, Gastrointestinal Stromal Tumor, Pancreatic Cancer, Pancreaticoduodenectomy, and Endoscopy. Dr. Mccarter is currently accepting new patients.

Alexander Urquhart is an Oncologist and a Hematologist in Edwards, Colorado. Dr. Urquhart is rated as a Distinguished provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Chronic Lymphocytic Leukemia (CLL), Ovarian Carcinosarcoma, Virilizing Ovarian Tumor, and Testicular Yolk Sac Tumor.

Warren Strutt is a Colorectal Surgeon in Denver, Colorado. Dr. Strutt is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. His top areas of expertise are Anal Fissure, Hemorrhoids, Anal Cancer, Ureteroscopy, and Small Bowel Resection.

Paige Dorn is a Radiation Oncologist in Denver, Colorado. Dr. Dorn is rated as an Advanced provider by MediFind in the treatment of Anal Cancer. Her top areas of expertise are Breast Cancer, Pleuropulmonary Blastoma, Prostate Cancer, and Familial Prostate Cancer.