Overview
Brett Castek is a Radiologist in Mason City, Iowa.
Insurance
Accepted insurance can change. Please verify directly with the provider.
Locations
MercyOne North Iowa Medical Center
Ryan Holthaus is a Radiologist in Mason City, Iowa. Dr. Holthaus is highly rated in 8 conditions, according to our data. His top areas of expertise are Thyroid Nodule, Lung Nodules, Mantle Cell Lymphoma (MCL), Liver Embolization, and Bone Marrow Aspiration.
MercyOne North Iowa Medical Center
Gary Swenson is a Radiologist in Mason City, Iowa. Dr. Swenson is highly rated in 8 conditions, according to our data. His top areas of expertise are Breast Lump, Galactocoele, Giant Mammary Hamartoma, Chronic Cough, and Myringotomy.
Allen Memorial Hospital Corporation
Robert Filippone is a Radiologist in Waterloo, Iowa. Dr. Filippone is highly rated in 8 conditions, according to our data. His top areas of expertise are Melorheostosis with Osteopoikilosis, Melorheostosis, Osteopenia, and Tenosynovitis. Dr. Filippone is currently accepting new patients in some locations.
Areas of Expertise
MediFind evaluates expertise by pulling from factors such as number of articles a doctor has published in medical journals, participation in clinical trials, speaking at industry conferences, prescribing and referral patterns, and strength of connections with other experts in their field.
Learn more about MediFind’s expert tiers
We do not have enough information to identify the Areas of Expertise for this provider.

