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Physician Directory

Chad Boyer, PA-C


Chad Boyer is a certified physician assistant who joined our staff at the Mason City Clinic in 2007. Mr. Boyer practices general orthopaedic medicine including: seeing patients in the clinic, performing minor surgical procedures, surgical assist, inpatient care and on-call services - under the supervision of the orthopaedic surgeons at the Mason City Clinic.

Mr. Boyer graduated magna cum laude with a biology pre-medicine degree and LaSallian Honors minor from St. Mary's University of Minnesota. He subsequently obtained a master’s degree in Physician Assistant Studies from the University of Iowa, with classes and training at the Carver College of Medicine. In addition to clinical practice, Mr. Boyer has also been a preceptor for PA students, medical students and family medicine residents. He is a member of the Physician Assistants in Orthopedic Surgery, Iowa Physician Assistant Society and American Academy of Physician Assistants.

Jared Knowles, PA-C


Jared earned his Bachelors of Science degree in Biology with a minor in Chemistry from Brigham Young University in Idaho and his Masters of Health Science in Physician Assistant Studies from Lock Haven University in Pennsylvania. He certified by the National Commission on Certification of Physician Assistants and is a member of the American Academy of Physician Assistants.

Jared spent two years in Italy on a service mission that included teaching English classes, organizing smoking cessation and addiction recovery programs, and organizing/participating in community service projects. In his free time Jared enjoys spending time with his wife and two children, playing basketball, golf and other sports. He is new to Iowa and looks forward to getting involved with the community.

Katie Weishaar, PA-C


Katie earned her Bachelors of Science degree in Biology and her Masters of Science degree in Physician Assistant Studies from the University of Detroit, in Detroit, Michigan. She is certified by the National Commission on Certification of Physician Assistants. In her free time Katie enjoys reading, running, and travel.



Kyle Ryan, PA-C


Kyle received his bachelor’s degree in Pre-professional Zoology from Northwest Missouri State University. He went on to Des Moines University where he received a degree in Physician Assistant Studies after which he joined the Mason City Clinic orthopaedic department.

Mr. Ryan enjoys treating a wide variety of conditions throughout the 14-county service area as well as working in the clinic and performing minor procedures and the various surgical procedures he assists the surgeons with.

Shawn Janssen, PA-C

Plastics and Reconstructive Surgery

Shawn is a Board-Certified Physician Assistant, who graduated from Des Moines University Physician Assistant program in 1990. She has over 20 years of experience in patient care working in Obstetrics and Gynecology, Family Practice Medicine, General Surgery, and finally Plastic Surgery. During the past 12 years, Shawn has been a valued provider in the Department of Plastic and Reconstructive Surgery. Shawn’s involvement in the practice has included first assisting in surgery, taking call, and holding outpatient clinic hours to help meet the needs of our patients. As a well-qualified team member, she enhances efficiency and safety in the operating room and provides a qualified and uniform extension of the care Dr. Mulkey and Dr. Recinos provide.

Shawn’s experience, gained by assisting in the operating room for many years, allows her to efficiently coordinate postoperative care in her clinics. She is skilled in total body screening for skin cancer and benign lesions. She is well-versed in the initial workup and non-operative management of hand conditions, such as carpal tunnel syndrome, ganglions, and trigger finger.

Matt McBride, PA-C


Matt earned his Bachelor of Science degree in Biology summa cum laude from the University of Northern Iowa, Cedar Falls, and his Master of Science degree in Physician Assistant Studies from the University of Iowa, Iowa City. He is certified by the National Commission on Certification of Physician Assistants and CPR/first aid. He is a current member of the American Academy of Physician Assistants and Iowa Physician Assistant Society.

Matt joined the Mason City Clinic Orthopaedics department as a Physician Assistant in 2004. He is married and has two children. Matt stays busy volunteering at Newman Catholic High School as a team physician in football and as an assistant wrestling coach. He enjoys golfing and is an active member of Epiphany Parish in Mason City.

Robert Giles II, PA-C


Robert received his Bachelor’s degree in Biology, Psychology, and Health Sciences with a concentration in Microbiology from East Tennessee State University in Johnson City, TN. He went on to complete his Master’s degree in physician assistant program at Lincoln Memorial University in Harrogate, TN. In his free time he enjoys kayaking, traveling, and spend time with family and friends.

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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