Dr. Jack McMahon

Dr. Jack W. McMahon Jr. MD

My vision is that the patient always comes first. I strive to give outstanding and compassionate care to women in all phases of their lives. I still love to deliver babies, talk to people about their problems, to do surgeries as perfectly as I can and to try to find solutions for my patient’s health care issues. I always remember that everybody who comes to see me is doing me a favor and I really appreciate that fact.
Jack W. McMahon, Jr., MD is a board-certified obstetrician and gynecologist with Helena OB/GYN Associates P.C. He has been in Helena for 30 years in this practice. Dr. McMahon, a graduate of Carroll College, received his medical degree from the University of Washington, Seattle. He completed his post graduate studies at The Phoenix integrated Residency in Obstetrics and Gynecology in Phoenix, Arizona in 1987. He is a fellow in the American College of Obstetrics and Gynecology, a member of the American Medical Association, the Montana Medical Association, and the American Association of Gynecologic Laparoscopists. As a Helena native, Dr. McMahon enjoys golf, skiing, mountain biking, fishing, hiking and spending time with his wife Leanne and children, Anna, Michael, Laura, Jackson, Mia, Tatum, Josie, and Allysa and their 7 grandchildren. He has been privileged to deliver over 6,000 babies in Helena and has done thousands of GYN surgeries here as well.

Undergraduate Degree: Carroll College

Medical School Attended: University of Washington, Seattle,WA

Residency: Maricopa Medical Center, Phoenix, AZ

Board Certification Date: ACOG 1989