About Me

I’m a urologist, with a major focus on the management of kidney stones. At The Ohio State University Wexner Medical Center, we perform more than 500 surgeries a year related to kidney stones.

Research at the Comprehensive Kidney Stone Program ties directly to our clinical program. I explore new treatments for kidney stones including medications and surgical techniques. I also study the use of lasers in the treatment of stones.

My goal is to personalize the health care delivered to each patient. I work with my patients to develop individualized treatment plans. Effective treatment of stones can provide relief of an acutely painful episode and also reduce future stone recurrences. Such treatment can significantly improve a patient’s quality of life.

My wife, Dr. Eunice Oppenheim-Knudsen, is a family practice physician who works at Ohio State’s Wexner Medical Center’s Upper Arlington Clinic. We both enjoy living in the Columbus area and working at a top tier medical center. We strive to maximize the quality of life for our patients.
Highlights
  • Director, Comprehensive Kidney Stone Program
  • Fellowship trained in endourology and kidney stone disease; recognized world expert in minimally invasive kidney stone surgery
  • President of the Ohio Urological Society, 2014-2015
  • Rated in the top 10 percent of physicians in the nation for patient satisfaction, 2016-2019
  • Named to the Castle Connolly list of “Regional Top Doctors,” 2016–2019
  • Best Doctor in America, 2017
Additional Languages I Speak
  • German

Procedures and Conditions I Treat

  • Kidney Calculi
  • Ureteral Calculi
  • Urinary Bladder Calculi
  • Urinary Calculi
  • Lithotripsy, Laser
  • Ureteroscopy
  • Cystoscopy
  • Prostatic Hyperplasia
  • Nephrostomy, Percutaneous
  • Lithotripsy
  • Urology

Locations Where I Practice

Please note: Not all physicians schedule patients at each listed location. Please call the “Schedule an appointment” number shown above for scheduling assistance.

My Videos

Education and Training

Education History

Medical School

University of Manitoba, Winnipeg, Manitoba,
MD
8/1/1993 - 6/13/1997

Internship&Residency

Health Sciences Center, Winnipeg, Manitoba,

7/1/1997 - 6/13/2002

Fellowship

St. Joseph's Hospital, Toronto, Ontario,

7/1/2002 - 10/13/2004

Board Certification

American Board of Urology
2/28/2007

Academic Information

My Department

Urology

Reviews

The overall patient satisfaction rating is an average of all patient responses to the six doctor communication related questions shown below from the Clinician and Group Consumer Assessment of Healthcare Providers and Systems survey. For additional information about the patient satisfaction survey, please visit our Patient Satisfaction Survey page.

The comments are submitted by patients and reflect their view and opinions. The comments are not endorsed by and do not necessarily reflect the views of Ohio State Wexner Medical Center.

464 Patient Satisfaction Reviews

  • Overall
    4.8 out of 5
  • Explains Things Clearly
    4.8 out of 5
  • Listens Carefully
    4.8 out of 5
  • Gives Understandable Instructions
    4.8 out of 5
  • Knows My Medical History
    4.7 out of 5
  • Shows Respect
    4.9 out of 5
  • Time Spent Together
    4.9 out of 5
  • Reviewed on Oct 11, 2020

    he is amazing!!

  • Reviewed on Oct 02, 2020

    All experiences goo

  • Reviewed on Sep 28, 2020

    he spent ample time with me and made sure not to end the appointment until all my questions were answered. I never felt rushed and he was very calm and nice. he was very knowledgeable and told me all my options in a way I understood. I am so glad I chose to see him even though the office is 1.5 hours away from my home.

  • Reviewed on Sep 25, 2020

    Doctor Knudsen was very reassuring and honest which I appreciated, highly knowledgeable and focused on my care with the utmost level of genuine respect and focus.

  • Reviewed on Sep 01, 2020

    Dr. Knudsen was very nice, kind and personable. He cares about his patients.

  • Reviewed on Aug 07, 2020

    Always professional and kind.

  • Reviewed on Aug 03, 2020

    Very caring, Very Professional

  • Reviewed on Aug 02, 2020

    Provider was helpful and friendly

  • Reviewed on Jul 21, 2020

    very knowledgeable and listened more than he spoke. seemed to really care and understand that I was in pain.

  • Reviewed on Jul 17, 2020

    Except for what seemed like a long with time to see the Doctor, everything went well.

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Consulting and Related Relationships

At The Ohio State University Wexner Medical Center, we support a faculty member’s research and consulting in collaboration with medical device, research and/or drug companies because a faculty member’s expertise can guide important advancements in the practice of medicine and improve patient care. In order to provide effective management of these relationships, the University requires annual disclosures from all faculty members with external interests related to their University responsibilities.

As of 11/01/2020, Dr. Knudsen has reported relationships with the companies or entities listed below. If you have questions about the relationships listed below, please ask the faculty member. If you have questions about how these relationships are monitored by The Ohio State University Wexner Medical Center, please contact our Compliance Office.

  • Boston Scientific
  • Olympus