Mon – Fri: 8am – 5pm

St. Louis: 314-523-5444

Fairview Heights: 618-206-3440

World-Class Care

To achieve this standard, we utilize only the very latest next-generation technologies and employ only the most talented board-certified physicians, Ph.D.-educated medical physicists, and highly-trained dosimetrists, therapists and nurses.

We seek to foster only the warmest, friendliest and most caring atmosphere for you and your loved ones and to help you completely understand your condition, determine your best treatment options and get you back to a life complete with excellent health!

Dr. Dunn
St. Louis University
Bachelor of Science in Geophysics
Penn State University
Master of Science in Geophysics
Medical University of South Carolina
Doctor of Medicine
Internship and Residency
Radiation Oncology-McGill University, Montreal, Canada
Board Certification
American Board of Radiology
Clinical Focus
Prostate Cancer, General Adult Oncology
Military Service
Naval Nuclear Power Program in South Carolina
Officer Candidate School in Rhode Island
Served as a Naval Officer at Charleston Naval Base
Personal Interests
I enjoy spending time with my wife and three children. Watching Marvel movies with my children. Playing the piano.

Very good care. May God bless all of you, Thank you. Thelma Voss.


My whole experience with USL was very positive especially the care and compassion by Autumn and Alyssa.


Great Staff.


The Nursing staff and Alyssa and Autumn were great. They made me fell comfortable and answered all of my questions.


Super job.


Alyssa& Autumn did a great job each day of treatment.


Very professional & caring at all times




The receptionist, the nurses, & the girl that checked my blood pressure each Tuesday were tremendous the way they treated me. Dennis Mayfield.


Everyone was vert helpful, and friendly. Very professional.


Staff was excellent would highly recommend.


Other than the breakdown’s It went as expected. Thank you to the staff for making sure I got done on time for planning vacation.


Great staff


Nurse in the is exceptionally good.


Friendly staff, helped make this experience Better.


Everyone was very helpful. Elizabeth & Kathy were friendly & nice. Thanks very much to Autumn & Alissa. Very Professional.


Too much information at consultation, couldn’t take it all in. My Main interaction was with Autumn and Alyssa. There were two other therapists who were also helpful. Dr. Dunn & Dr. Sutphen were good, and Kathy was available and very helpful.


Excellent Professional treatment, and friendly treatment. Thanks for your excellent work W.C.M.


The staff and Dr’s were the best.


If I could I would give staff a 10-1000.


Excellent care, great staff, many thanks for concern compassion, and assistance shown by all.


After last treatment, severe burning while urinating. Unable to to hold urine back while walking to the bathroom.


Dr. and staff were the best. Highly recommend.


Thank you all for the way you took care of me during my treatment.


All excellent ++++ way satisfied.


The nursing staff(Robin, Emily, Danielle, Kathy) was fabulous. Never had better care. DR. Sutphin was great. I feel I had the best care possible.


Ladies were very friendly & knew their profession very well.


Very satisfied with the treatment. All of the staff was a joy to deal with. They were all very friendly; and respected my privacy well.


It was a very slow start likely because of covid 19. It was difficult to get anything faster. Beads inserted Prolaris before treatment started.


Couple of times they were behind schedule and it made it kind of hard to hold water in your bladder for procedure.


Thank you for all your help in my need to fight my cancer.


I can only say food things about everyone involved.


Staff and nurse was great! They put up with my jokes and good days and bad days. Doctor was very kind and prayed for me.


Very professional staff to my needs and concerns I had 45 treatments and I am very well satisfied.


Very professional people. They take care of their patients.


Extremely positive experience Dr. Sutphen and the entire staff were exceptional! Thank you all!


The staff was great.

Loved all of them.