Jack W. McMahon, Jr. MD


About This Project

Jack W. McMahon, Jr., MD is an obstertrician and gynecologist with Helena OB/GYN Associates P.C. Dr. McMahon,a graduate of Carroll College, received his medical degree from the University of Washington, Seattle. He completed his post graduate studies at Maricopa Medical Center in Phoenix, Arizona. He is a fellow in the American College of Obsterics and Gynecology, a memeber of the American Medical Association, the Montana Medical Association, and the American Association of Gynecologic Laporoscopists. As a Helena native, Dr. McMahon enjoys golf, skiing, mountain biking and spending time with his wife Leanne and children, Anna, Michael, Laura, Jackson, Mia, Tatum, Josie, and Allysa.



Undergraduate Degree: Carroll College
Medical School Attended: University of Washington, Seattle,WA
Residency: Maricopa Medical Center, Phoenix, AZ
Board Certification Date: ACOG 1989


Denise Smigaj
Family Nurse Practitioner