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John C. Kefer, MD, PhD

  • Primary Specialties: Benign Prostatic Hyperplasia/BPH, General Urology, Kidney Stone Treatment and Prevention, Sexual Dysfunction, Minimally Invasive Management of Prostate Cancer and Kidney Cancer, Single-Site, No-Scalpel Vasectomy, Urinary Incontinence, UroLift
  • Gender: Male

About This Provider

Dr. Kefer is a board-certified urologist who completed his residency and fellowship at the prestigious Cleveland Clinic. Dr. Kefer earned the UroLift Center of Excellence status in 2019, becoming the first urologist in the Denver area and the entire Front Range to earn Center of Excellence status. Physicians with the Center of Excellence designation have received a higher level of training and experience with the UroLift System and demonstrate a commitment to exemplary care for men living with the symptoms of BPH.

His practice interests include minimally invasive management of prostate cancer and kidney cancer, BPH/prostate enlargement and prostate health, single-site, no-scalpel vasectomies, treatment and prevention of kidney stones, urinary incontinence in women and men, and sexual dysfunction. He is also one of the only physicians in Colorado to perform an office-based prostate biopsy through the perineum, which substantially decreases the risk of biopsy-related infection and improves comfort and prostate sampling.

He is a member of the American Urologic Association, a member of the Colorado Urology Executive Council, and is Co-director of Urological Robotic Surgery at Exempla Good Samaritan Medical Center.


  • Glenn Space Center-Cleveland Clinic Center for Space Medicine
  • American Society for Pharmacology and Experimental Therapeutics
  • American Urological Association
  • UroLift Center of Excellence
  • National Institute of Health Signal Transduction Fellow
  • U.S. Dept. of Health and Human Services Health Sciences Fellow
  • Invited Lecturer- Loyola University School of Medicine Department of Pharmacology
  • Cleveland Clinic Innovator Award
  • American Urogynecology Society Scholar
  • Ohio Urological Society Best Paper Award
  • Society of Laparoscopic Surgeons Resident Achievement Award
  • AUA Outstanding Paper Award, Engineering in Urology Society
  • College
  • Bachelor of Science in Biology University of Illinois-Urbana
    Urbana, IL
  • Medical School
  • Graduate School, Pharmacology University of Chicago
    Chicago, IL
  • Ph.D., Molecular Pharmacology University of Illinois - Chicago
    Chicago, IL
  • Medical Degree Loyola University Stritch School of Medicine
    Chicago, IL
  • Residency
  • Urology Cleveland Clinic Cleveland
    Cleveland, OH
  • Fellowship
  • Male Infertility/Andrology Cleveland Clinic
  • Board Certification
  • American Board of Urology