Meet The Posterity Great Lakes Clinical Team

We're able to provide care throughout the Great Lakes region including Indiana, Ohio, Michigan, and more.

At Posterity Health, we’ve assembled an outstanding team of reproductive urologists, male fertility specialists, and business leaders. With decades of industry experience and education, you can rest easy knowing we understand all the ins-and-outs of male fertility issues and treatments. Learn more about our talented clinical team.

Dr. Jason R. Kovac, MD/PhD 

Regional Medical Director 

Dr. Jason Kovac is a fellowship-trained Reproductive Urologist. He serves as the Regional Medical Director for Posterity Health in Indiana, Ohio, and Michigan. He is a dual board-certified Urologist in both the United States and Canada. 

Dr. Kovac obtained his MD and Ph.D. from the University of Western Ontario. He completed his urology residency at McMaster University in Hamilton, Ontario, and completed his Fellowship in Male Reproductive Medicine and Surgery at the Baylor College of Medicine in Houston, TX where he focused on male fertility and sexual medicine. During his time in Houston, Dr. Kovac worked closely with the originator of the modern vasectomy reversal, Dr. Larry Lipshultz, and Dr. Dolores Lamb, a pioneer of male fertility research. After completing his fellowship, Dr. Kovac served as the Director of the Men’s Health Center at Urology of Indiana. 

He is board-certified by the Fellowship of the American College of Surgeons (FACS) and the Fellowship of the Royal College of Physicians and Surgeons of Canada (FRCSC). 

Dr. Kovac is a trailblazer for male fertility research, and has led multiple clinical trials on male fertility, scrotal pain, and hormone management techniques, and continues to lead similar research efforts. 

Specialty Services Offered by Dr. Kovac 

Dr. Kovac is currently providing care to patients in Michigan, Ohio, and Indiana. Dr. Kovac specialties include: 

  • Male fertility diagnosis and treatment   
  • Vasectomies 
  • Vasectomy reversals 
  • Varicocele repairs 
  • Advanced testosterone therapy 
  • Erectile dysfunction treatments 
  • Scrotal pain therapy 
  • Penile girth enhancement 

Clinical Research 

Dr. Kovac is a well-respected member of the Andrology community and actively participates in clinical male fertility research studies. Dr. Kovac has published over 100 manuscripts in peer-reviewed journals and numerous textbook chapters relating to male fertility and reproductive health. Dr. Kovac additionally serves as a peer-reviewer for over 14 journals and is currently on the editorial boards of several high-profile medical journals including: 

  • The Asian Journal of Andrology 
  • The Journal of Xiangya Medicine 
  • The American Journal of Men’s Health 

Book an Appointment with Dr. Kovac Today 

Dr. Kovac is committed to helping every couple find their best path to pregnancy. Schedule your appointment with Dr. Kovac today. 

Dr. Barrett Cowan, MD

Co-Founder and Chief Medical Officer 

Dr. Barrett Cowan is a Reproductive Urologist and has specialized in treating male patients with infertility for more than 20 years. He started using telehealth technology when the pandemic began and was pleasantly surprised to see patients were more relaxed and candid about their questions when speaking from the comfort and privacy of their own home, and with their partners by their side. The technology also made it easier for patients to schedule appointments from anywhere in the country. 

Seizing the opportunity to offer a better overall patient experience, Dr. Cowan, in partnership with his wife Pamela Pure, launched Posterity Health to make high quality male fertility care accessible to all couples trying to conceive. 

Dr. Cowan completed his undergraduate education at Stanford University, graduating with distinction and with honors in biology. He obtained his MD with honors from Stanford University School of Medicine, where he additionally completed a special residency in urology and fellowship in prostate medicine and ultrasound. Dr. Cown is a board-certified Urologist through the Amercian Borad of Urology (ABU). 

Dr. Cowan takes great care with all of his patients and understands the most appropriate treatment methods for all kinds of urologic diseases and problems. He has particular expertise in microscopic and laser surgery and is committed to providing state-of-the-art care in a compassionate fashion. 

Specialty Services Offered by Dr. Cowan

Similar to Dr. Kovac, Dr. Cowan specializes in addressing male infertility issues and has experience treating a wide array of conditions, including: 

  • Abnormal Semen Analyses  
  • Hormone Imbalances
  • Recurrent Pregnancy Loss
  • Varicoceles
  • And many other male infertility issues 


  • American Urology Association – over 25 years
  • A member of American Society of Reproductive Medicine (ASRM) – 20 years
  • A member of Society for the Study of Male Reproduction (SSMR)
  • A fellow of the American College of Surgeons

Book an Appointment with Dr. Cowan Today 

Dr. Cowan is committed to the Posterity Health mission of helping couples find their best path to pregnancy. Schedule your appointment with Dr. Cowan today to get started.