Providing specialized orthopedic care at six convenient locations across Northeast Wisconsin. Click to find a location near you.
(920) 560-1000

About David Ritzow, M.D.

Dr. Ritzow is a board-certified orthopedic surgeon who began practicing in 1998. He joined Valley Orthopedic Clinic, which eventually joined forces with OSI, in 2007.

Dr. Ritzow treats patients in Appleton and is an Active Fellow of the American Academy of Orthopedic Surgeons. A member of the Wisconsin Medical Society, Dr. Ritzow serves as a clinical instructor for the Fox Valley Family Medicine Residency Program and is a trained consultant for the Community First Fox Cities Marathon.

During his career, Dr. Ritzow has participated in the Lawrence University and Appleton Area School District athletic programs, as well as OSI’s Medical Mentoring Program.

Clinic Locations

Care Team


Primary Specialties


  • University of Wisconsin School of Medicine and Public Health
  • Internship & Residency: Michigan State University
  • Subspecialty Certificate in Orthopedic Sports Medicine


Patient Reviews

I went in with knee pain. I had an X-ray prior to my visit. Dr. Ritzow was patient and took time to answer all my questions regarding the X-ray and his findings in the examination of my knee bringing up the imaging and explaining what was seen. He really cares about his patients.

-Kim L.

Dr. Ritzow is more than an exceptional doctor. He takes the time to explain everything. After my 4th different surgery he has performed I would highly recommend him and his staff.

-L. V.

Doc takes his time to discuss options and answers all my questions. Always feel comfortable coming to him for my joint issues.

-OSI Patient

Dr. Ritzow is a very competent and caring physician. Listens to his patients, and explains everything thoroughly!

-OSI Patient

Additional Specialties

  • Foot/ankle
  • Fracture care
  • Hand/carpal tunnel
  • Sports medicine
  • Trauma
  • Upper extremity
  • Workers’ Compensation