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Janet Merfeld

Janet Merfeld, MD, FACRO

Specialties: Oncology and Radiation-Oncology

Schedule an Appointment

To schedule an appointment with Janet Merfeld, please call 319-398-6180

Areas of Interest

Breast, thyroid and gastrointestinal cancers

Year began practicing: 1992

Year joined staff: 2004

Year began practicing in specialty: 1992

Education and Training


Creighton University School of Medicine, Omaha, NE, Doctor of Medicine


Medical College of Wisconsin, Milwaukee, WI, Radiation Oncology

Professional Memberships

AMA, IMA, American College of Radiation Oncology, American College of Radiology, American Society of Therapeutic Radiation Oncology, Linn County Medical Society

Honors, Awards, etc.

  • 2017 Nominee for Colleague Award
  • 2016 Nominee for Colleague Award, one of Mercy's Annual Provider Awards


Board certified in Radiation Oncology by the American Board of Radiology.


Patient Stories

Marking the End

When 35-year-old Krista Barnell discovered a lump in her breast during a self-exam, she initially wrote it off. The healthy mother of two never imagined it was cancer. Read more on page 14.

Five-Day Forecast

Pauline Mason was enjoying her job of 25 years as a storeroom clerk, spending time with her grown children and grandchildren, and looking forward to retirement. Then, she heard the “C” (cancer) word. Read more.

New Rehab Therapy Rolled Out

Most people take for granted the ability to easily raise their arms over their head. But Sandy Likes has a new appreciation for that simple act. Read more.

A Silver Lining

Kathie McWhirter considers herself blessed. The warm, friendly Mt. Pleasant woman sees only the silver lining of any cloud on her horizon. Even breast cancer. Read more.

Thriving After Cancer

When breast cancer survivor Melinda Tomsic completed Thrive, Mercy’s cancer fitness & wellness program, she was eight lbs. lighter and 3" smaller around the waist. Read more.

The A-Team Approach to Cancer Care

Fighting breast cancer alone is one fear patients at Mercy Women’s Center will never have to face. No one knows that better than Jerrie Bourgo, Cedar Rapids. Read more.

Make Cancer the Victim

Powerful, precise radiotherapy treatments that take just a few minutes per day are now available for cancer patients at Mercy’s Hall-Perrine Cancer Center. The new TrueBeam™ advanced medical linear accelerator system offers patients the latest advancement in radiation technology available in the U.S. Read more.

A Friend for Life

Nancy and Tom Lackner knew Deb Sedlacek, RN, was a Mercy parish nurse at their church, First Presbyterian Church in Cedar Rapids. But they didn’t really understand what she did – until they needed her. Read more.