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Welcome to the website for the Department of Radiation Oncology at the University of Colorado Denver, affiliated with the University of Colorado Hospital.

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Radiation Therapists


Wes Aldridge RT (R) (T) (CT), Radiation Therapy Supervisor

In May 1999, Wes graduated from the Brevard Community College, Melbourne, Florida with an Associate in Science Degree in Radiologic Technology with clinical education at Holmes Regional Medical Center in Melbourne and Cape Canaveral Hospital in Cocoa Beach, Florida.

Wes obtained a Bachelor of Science Degree in Marketing from the University of Phoenix in May 2004.

In May, 2006 he completed the Certificate in Radiation Therapy from the Halifax Health College of Radiologic Sciences with Clinical education from Halifax Health: Regional Oncology Center, Ormond Beach Oncology Center and New Smyrna Oncology Center in Florida.

Wes is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since December 2007.


Linda Dicks  RT (R) (T), Radiation Therapist

In 1993, Linda obtained an Associate's Degree in Business Management/Accounting from the Flathead Valley Community College in Kalispell, Montana

In August 2003, Linda graduated from the School of Radiologic Technologists at St. Anthony's Hospital, Denver as a Radiologic Technologist ( Diagnostic Radiography).

In 2006, Linda graduated from the Spartenburg Technical College in Spartenburg, South Carolina with a Certificate in Radiation Therapy with Clinical education at the Gibb Cancer Center in Spartenburg.

Linda is board certified by the American Registry of Radiologic Technologists and has been working at the University of Colorado Hospital since December 2007.


Karen Dollar BHS, R.T. (R) (CT) (T) ARRT), Radiation Technologist/CT

Karen graduated in May 1999 from the Community College of Denver with an Associate of Applied Sciences Degree in Radiography.

In May 2006, Karen obtained her board license for CT (Radiography) from the American Registry of Radiologic Technologists.

Karen completed the Certificate in Radiation Therapy program in July 2009 from Washburn University, Topeka, Kansas with clinical education at the University of Colorado Hospital.

She is studying for the examination in September 2009 to become board certified in Radiation Therapy by the American Registry of Radiologic Technologists.

She has been working in the Radiation Oncology Department since May 2005.

  
Christina Follweiler  RT (R) (T), Radiation Therapist

Christina obtained a Bachelor’s Degree in Medical Imaging at Misericordia University, Dallas, Pennsylvania in 2001 with Clinical education at the Geisinger Wyoming Valley Medical Center.

She graduated from Washburn University in Topeka, Kansas with the Certificate in Radiation Therapy in 2007 with Clinical education at the University of Colorado Hospital.

Tina is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since 2007.


Mary L. Mrozek  RT (R) (T), Lead Radiation Therapist

Mary graduated from All Saints Episcopal Hospital Radiography Program in 1988 and was given the Mallinckrodt Award for outstanding academic achievement.

She obtained the certificate in Radiation Therapy at the Moncreif Radiation Center located in Fort Worth, Texas in 1991. Mary is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since January 2001.

Mary is Lead Therapist at the Tomotherapy Center of the University of Colorado Hospital, situated in Lone Tree, Colorado. She has successfully completed her undergraduate degree in business at the University of Denver, with magnum cum laude honors. She is currently enrolled with the University of Denver studying for a graduate degree in Healthcare Administration.


​Aaron Rodriguez  RT (R) (T), Radiation Therapist

Aaron obtained the Associate Degree in Radiologic Sciences from the Florida Hospital College of Health Sciences, Orlando, Florida in May 2003 and qualified as a Radiologic Technologist in Diagnostic Radiography.

He obtained the Certificate in Radiation Therapy from the Halifax Medical Center, Daytona Beach Florida in June 2005.

Aaron is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since May, 2009.


Terri Schuchman  RT (T), Radiation Therapist

Terri graduated from Community College of Denver with a Associate Degree in 1975 with Clinical education at the University of Colorado Hospital.

Terri is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since 1975.

She is the longest serving staff member in the Department of Radiation Oncology at the University of Colorado Hospital


Dai Tran RT (T), Radiation Therapist

Dai attended the Radiation Therapy Program at Argosy University in Eagan, Minnesota, with Clinical education at St. John's Hospital in Maplewood, MN, St. Joseph's Hospital in St. Paul, MN, and the University of Colorado Hospital at Anschutz Medical Campus. 

Dai graduated in May 2007 with an Associate's Degree in Radiation Therapy. 

He is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department since 2008.


Joseph Vogel  RT (R), Radiation Therapist

Joe obtained the Associate Degree of Applied Science in Radiologic Technology at the Community College of Denver in May 2008 with clinical education at Denver Health Center and Presbyterian /St Lukes Medical Center.

In July 2009 Joe graduated from the Community College of Denver with a Certificate in Radiation Therapy with Clinical education at the University of Colorado Hospital.

He is currently studying to become board certified with the American Registry of Radiologic Technologists as a Radiation Therapist.  Joe has been employed with UCH since 2009.


 Lindi Williamson BSRT  (R) (T), Radiation Therapist 

Lindi is a 1998 graduate from University of Texas with a B.S.  in Science. She graduated from Midwestern State University in Wichita Falls, Tx in 2000 with a B.S. in Radiological Technology spending clinical time at Parkland hospital in Dallas, Texas.

In 2010 Lindi graduated from the Community College of Denver with a certificate in Radiation Therapy while doing her clinical rotations at UCH. She has been a Radiation Therapist since the Fall of 2013.


Ryan Castro RT (R) (T) (CT), Radiation Therapist

Ryan graduated from Arizona State University with a BS in Psychology in 2004. He obtained an Associates degree in Radiologic Technology from Pima Medical Institute, Mesa, AZ in 2008 with clinical education at Scottsdale Healthcare Osborn in Scottsdale, AZ. 

Ryan graduated with a certificate in Radiation Therapy from Gateway Community College in Phoenix, AZ in 2013 with clinical education from Banner Good Samaritan, Mayo Clinic and Mayo Clinic Hospital in Phoenix, AZ.  He is board certified by the American Registry of Radiologic Technologists and has been working in the Radiation Oncology Department at UCH since January 2014.​