Dr. Clark maintains a busy orthopedic practice focused on enabling patients to overcome their physical challenges—whether they are related to injury or the aging process. In private practice since 2000, Dr. Clark has been at the forefront of hip and knee arthroplasty innovation. One of the first adopters of the direct anterior approach to total hip replacement in the Midwest, he has focused on less-invasive surgical techniques, as well as robotic knee replacement. Among the first to perform MAKOplasty, a partial knee replacement technique that involves a robotic arm, in his home state of Iowa, Dr. Clark has extensive experience in joint care. With a special interest in advanced surgical outcome metrics and rapid recovery protocols, Dr. Clark has become a leader in the UnityPoint health-care system in patient length-of-stay, typically discharging his joint patients either the same day or the next day following surgery.

Beginning with his residency at Michigan State University and continuing at the University of Northern Iowa, Dr. Clark has been treating Division I athletes for over two decades, including numerous All-Americans and some who compete currently at the professional level in football and basketball. An expert in sports-related injuries, Dr. Clark has been on the sidelines for more than 500 Division I football, basketball, and wrestling competitions, serving as the Team Physician for the University of Northern Iowa and Wartburg College since 2000.

Highly competitive by nature, Dr. Clark has an intense passion for helping his patients to overcome their injuries or impairments and reach their individual victories.


Curriculum Vitae

Jeffrey Allen Clark, DO



Fellowship – A.O. International Trauma Fellowship; Humboldt University, Berlin, Germany
2000 Residency (Orthopedic Surgery) – Michigan State University

Garden City Hospital, Lansing, MI
(Pediatric Orthopedics) Children’s Hospital of New Orleans, New Orleans, LA
(Trauma and Joint Arthroplasty) Florida Orthopedic Institute, Tampa General Hospital, Tampa, FL

1996 Internship (Rotating) – Michigan Capital Regional Medical Center
1995 DO – Des Moines University
1989 B.A. – Beta Beta Beta, Mortar Board Society, Football Letter-winner (Economics & Business), Cornell College


2013 Recertified – American Osteopathic Board of Orthopedic Surgery (Passed first examination)
2003 Clinical – A.O.B.O.S. – Passed first examination
2001 Oral – A.O.B.O.S. – Passed first examination
2000 Written – A.O.B.O.S. – Passed first examination


2002 – Clark, J.A. and Bremner, B.R.B.; “Fatal Warfarin-Induced Skin Necrosis After Total Hip Arthroplasty.” Journal of Arthroplasty.


Chief of Surgery – UnityPoint-Allen Hospital
Chief of Orthopedics – UnityPoint-Allen Hospital
Head Team Orthopedic Surgeon – Wartburg College
Orthopedic Surgeon, All Sports – University of Northern Iowa
Oral Examiner – American Osteopathic Board of Orthopedic Surgery


Adjunct Assistant Professor of Orthopedics – Des Moines University
1995-2000 – Clinical Instructor, Orthopedics – Michigan State University
Guest Lecturer – University of Northern Iowa Athletic Training


American Osteopathic Academy of Orthopaedics (A.O.A.O.)
American Osteopathic Association (A.O.A.)
AO Alumni Association (A.O.A.A.)
Iowa Orthopaedic Society


Direct anterior approach to total hip replacement
Less-invasive knee replacement surgery
Rapid recovery protocols
Orthopedic sports medicine
Knee and shoulder arthroscopy



Curriculum Vitae

Brenda L. Cooper, ARNP



08/03 – 05/05 — Allen College of Nursing, Waterloo, IA — MSN
08/92 – 05/95 — Allen College of Nursing, Waterloo, IA — BSN
08/88 – 05/92 — University of Northern Iowa, Cedar Falls, IA — B.A. in Biology


2005 — ARNP


1994 — Iowa RN
2005 — Iowa ARNP


01/08 – present  — Cedar Valley Medical Specialists, P.C., Department of Orthopedic Surgery, Cedar Falls, IA — Staff ARNP
10/05 – 01/08 — Cedar Valley Medical Specialists, P.C., Department of Orthopedic Surgery, Waterloo, IA — Staff ARNP
08/01 – 10/05 — Cedar Valley Medical Specialists, P.C., Department of Orthopedic Surgery, Waterloo, IA — Staff RN
06/95 – 07/01 — Allen Memorial Hospital, Waterloo, IA — Staff RN


Dr. Clark has served as the Team Physician for UNI athletics since 2000. In that role, he has attended more than 400 football and basketball games, including the 2005 Division I FCS National Championship game and UNI Basketball’s 2010 appearance in the NCAA Sweet Sixteen. As the physician for collegiate wrestling’s National Dual Meet Championship from 2005-2011, Dr. Clark treated elite wrestlers from around the country. Additionally, Dr. Clark cares for Wartburg College and Upper Iowa University athletes as Team Physician.


A former college athlete, Dr. Clark knows what it is like to compete in sports at a high level. After suffering a career-ending knee injury, he channeled that drive into the field of orthopedic surgery. For Dr. Clark, surgery is an opportunity to pursue victory for his patients. He encourages every patient, regardless of age or circumstance, to adopt that same competitive approach—to ambitiously pursue victory over injury and the physical effects of aging.


Based at the University of Northern Iowa’s Human Performance Complex, Dr. Clark and his team provide quality orthopedic care for patients in Iowa and the surrounding states. A satellite location at Wartburg College’s Sports & Wellness Center increases access for the region.

With an in-office MRI, Digital X-ray, Diagnostic/Interventional Ultrasound, and Platelet Lab, our facility provides the tools needed to effectively and efficiently diagnose and treat your injury. The adjacent Physical Therapy and Hydrotherapy (HydroWorx®) suites help to optimize your recovery process.

Click on a photo below to learn more about Dr. Clark’s
main and satellite offices and surgery locations

Main Office – UNI Human Performance Complex

Outpatient Surgery – United Medical Park

Inpatient Surgery – Allen Hospital

View Our Map of Former Surgical Patients


To date, patients from 25 states have trusted Dr. Clark to provide orthopedic surgical services that are less-invasive, feature lower pain scores, and are treated with limited opiate multimodal pain management. These states are indicated by the blue coloring in the map below.