Physicians Directory Patient Portal pay bill

Welcome To Mason City Clinic

Our Mission

Mason City Clinic was organized with a philosophy that specialists working together in the same organization can offer patients a variety of health services in a convenient and efficient manner.

Learn more

News and Announcements

We are excited to announce the introduction of secure on-line services through our Patient Portal. These services will help us correspond securely, keep your information up to date, and are available 24/7 from the comfort of your home.

Learn more

Billing Policy

Please contact us prior to your appointment regarding your insurance benefits and plan for payment.
We’d be happy to provide you an estimate for the cost of your upcoming service.

Learn More

Free WiFi Available

The Mason City Clinic has free Wireless Internet available for your mobile device.

Mason City Clinic Charitable Giving Committee

The Mason City Clinic Charitable Giving Committee was established in 1990 to support funding for projects that enhance health, safety and educational programs in North Iowa communities. Dr. Dale Armstrong, President, states “We feel it is important as an organization to give back to the communities we serve, and this committee structure provides us an organized approach for our corporate giving.”  Current committee members are:  Drs. Sant Hayreh, Harsha Jayawardena, Mark Lassise, Phillip Lee, Mark Mulkey, Steve Schurtz, and Daniel Waters.  October 1 is the deadline for receiving the Charitable Giving Grant application.

Click on link to access MCC Charitable Giving grant application:

Learn more



“Dr. Waters saved my father’s life…Dr. Waters gives detailed and down to earth explanations…”

“Dr. Mulholland is the greatest…he takes time to answer questions and really cares about your well being…Dr. Mulholland is down to earth and very personable…”

“Dr. Dettmer examined me at a clinic in my home town…Dr. Dettmer and his staff did a remarkable job..A big thank you to Dr. Dettmer and staff for their very professional work and making a patient feel very much at ease…”

“Dr. Allgood was easy to understand and answered all of my questions…made me feel very comfortable…”

“Dr. Donohoe was pleasant and answered all my questions…friendly and knowledgeable…”

“Dr. Mulkey and his staff are excellent…they always go above and beyond to make sure I’m comfortable and all my questions are answered…”

Read More Testimonials