Thornton Radiation

8820 Huron St.
Thornton, CO 80260

Phone: 303-386-7622
Fax: 303-487-9350

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  • Radiation Therapy


  • 3-D Conformal Radiation Therapy
  • Accelerated Partial Breast Irradiation (ABPI)
  • Clinical Trials
  • Genomic Testing
  • HDR Brachytherapy for Gynecological and Skin Cancers
  • Image Guided Radiotherapy (IGRT)
  • Intensity-Modulated Radiation Therapy (IMRT)
  • Targeted Radiation Therapy

Physicians at this location:

Radiation Oncologist

Joshua Gruhl, MD

Joshua Gruhl, MD

Marie Weeks, MD

Marie Weeks, MD


Welcome to Rocky Mountain Cancer Centers in Thornton, located at 8820 Huron St. where we offer high quality radiation therapy services with an emphasis upon convenient, integrated, and multi-disciplinary care. 

Our services include 3-D conformal radiation therapy, accelerated partial breast irradiation, image guided radiotherapy, intensity-modulated radiation therapy, targeted radiation therapy, HDR brachytherapy for gynecologic and skin cancers, clinical trials, and genomic testing. Both IGRT and HDR Brachytherapy help ensure patients receive the maximum tumor response and minimal damage to healthy tissues and organs.

Our radiation team includes board-certified radiation oncologists with years of experience in caring for cancer patients assisted by qualified medical physics, dosimetry, radiation therapists, and nursing support staff. Our experienced radiation oncologists have written numerous nationally published articles and are leaders in nationally recognized radiation research trials.

Parking: Our office has a private parking lot for the exclusive use of our patients and staff.