The 20 Best Castleman Disease Doctors Near Me in boulder, CO
Find the Top Castleman Disease Experts and Specialists
Rocky Mountain Cancer Centers
Mark Sitarik is an Oncologist practicing medicine in Boulder, Colorado. Dr. Sitarik is rated as an Experienced provider by MediFind in the treatment of Castleman Disease. 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.
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Multicentric Castleman Disease (MCD), Unicentric Castleman Disease (UCD)
Last Updated: 09/26/2026