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Physician Directory

Cardiac Surgery

Dr. Daniel J Waters


Dr. Muhammad M Al Sharif

Dr. Byron T Beasley

Dr. Samuel J Congello

Dr. Denisa L. Hagau

Dr. Radu Hagau

Dr. Brian Olshansky

Dr. James T Reeder

Dr. Michael J Sarik

Dr. Ketan Koranne


Dr. Timothy M Dettmer

Dr. Henry R. Diggelmann

Dr. Vishram Jalukar

Dr. Phillip C Lee

Dr. Trisha L. Thoma


Dr. Satish K Sondhi

General Surgery

Dr. Harsha U Jayawardena

Dr. Jeffrey K Rowe

Dr. Abdolhossein Emami-Ahari

Dr. Brittany E. Splittgerber

Infectious Diseases

Dr. Sandra L. Crosara

Interventional Pain

Dr. Ronald F Kloc


Dr. Rajinder K Verma


Dr. Michael W Crane

Dr. Timothy A Gibbons

Dr. Darron M Jones

Dr. Eric J Potthoff

Dr. Richard E Rattay

Dr. Michael B. Scherb

Plastic and Reconstructive Surgery

Dr. Mark W Mulkey

Dr. René F Recinos


Dr. Scott M. Donohoe

Dr. Edward S. Henrich


Dr. Mark E Lassise

Dr. Rogerio M Ramos


Dr. Christopher E Adams

Dr. Timothy L Mulholland

Dr. Kevin R Rier

Dr. Steven P. Thoma

Vascular Surgery

Dr. Jeffrey K. Rowe

Our Mission

Why more patients choose Mason City Clinic for all their specialized health needs

World-class care, close to home. That’s what people want. That’s what Mason City Clinic delivers. Mason City Clinic’s well-educated, highly credentialed and experienced physicians bring the latest technology and leading-edge procedures.

During the past 25 years, we have helped hundreds of thousands of people throughout the North Central Iowa region. Many of our doctors have Iowa and local ties to go with outstanding reputations in their respective fields. Each physician is supported by caring, helpful staff.

Patient Reviews

Our patients say it Best

"No more sour grapes about knee pain for me."

“I injured my knee as a teenager and had surgery. Then, as I got older, the pain returned and began affecting my routine and overall enjoyment of life. My doctor referred me to Darron Jones, MD, an orthopedic surgeon. After a thorough exam, he said...
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Welcome to Mason City Clinic

In The Media

Radio Podcasts

Mason City Clinic Physicians discuss a variety of patient medical and health issues with Timothy Flemming on monthly KGLO 1300 AM Radio Show

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TV Segments

See Mason City Clinic specialist physicians and staff and their patients featured in a variety of health and medical television segments.

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News Articles

Read patient testimonials and other news about how Mason City Clinic is impacting the lives of northern Iowans through specialty medical care.

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Video Gallery

Get to know our MCC physicians and providers up close and personal with these informative videos. Learn more about their areas of specialization and the many benefits they bring to their patients in Mason City and beyond.

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