Dr. Gregory C. McMahon, D.O. specializes in treating cancers of the genitourinary tract and is skilled in both robotic and open surgery as well as ablative technologies for prostate cancer. His practice focuses on treating complex malignancies such as prostate, kidney, bladder, adrenal, testis, and penile cancer. He is also well versed in treating benign conditions such as ureteral strictures and benign prostatic hyperplasia (BPH).
Dr. Gregory C. McMahon, D.O. specializes in treating cancers of the genitourinary tract and is skilled in both robotic and open surgery as well as ablative technologies for prostate cancer. His practice focuses on treating complex malignancies such as prostate, kidney, bladder, adrenal, testis, and penile cancer. He is also well versed in treating benign conditions such as ureteral strictures and benign prostatic hyperplasia (BPH).
The reviews listed below were collected independently of MidLantic Urology through rater8. Each review represents an authentic and verified patient experience.
First time meeting Dr. McMahon. Very nice and efficient. Took good care of me and explained the procedure as he went along. I appreciated this very much.
(1 week ago)
Sep-2026
Dr. Gregory McMahon is a great Doctor, Im very fortunate to have him as my Urologist. He was referred to me by one of the finest doctors at Lankenau.
(1 month ago)
Aug-2026
Great as usual!!
(1 month ago)
Aug-2026
Dr.McMahon was very nice and helpful by listening about what I have been experiencing concerning might health as well good communication through out the appointment.
(1 month ago)
Aug-2026
Took the time to answer all
Questions. Accommodated a time that worked well with our schedule considering the travel time to be seen. Staff very courteous
(1 month ago)
Aug-2026
Sweetest doctor!!!!! Smart and clear on my treatment plan!!!
(1 month ago)
Aug-2026
Always caring.
(1 month ago)
Aug-2026
Excellent
(1 month ago)
Aug-2026
Broomall
1974 Sproul Road Suite 106 Broomall, PA 19008
Wynnewood
100 Lancaster Ave Medical Office Building - East, Suite 361 Wynnewood, PA 19096
Dr. Gregory C. McMahon, D.O. specializes in treating cancers of the genitourinary tract and is skilled in both robotic and open surgery as well as ablative technologies for prostate cancer. His practice focuses on treating complex malignancies such as prostate, kidney, bladder, adrenal, testis, and penile cancer. He is also well versed in treating benign conditions such as ureteral strictures and benign prostatic hyperplasia (BPH). He takes pride in providing every patient and their families with exceptional care and support.
Dr. McMahon is an experienced surgeon completing a urologic oncology fellowship at Yale University after completing his residency training at Rowan University/Jefferson Health where he served as the chief resident in his final year. Throughout his career he has published and presented at numerous academic conferences nationwide.
In his free time Dr. McMahon enjoys spending time with his family in the community he serves.
AREAS OF EXPERTISE –Prostate Cancer, retzius sparing prostatectomy –Bladder Cancer –Kidney Cancer –Adrenal Cancer –Ureteral Strictures –Robotic Surgery
UNDERGRADUATE EDUCATION Springfield College, MA
GRADUATE EDUCATION National Institutes of Health, MD
MEDICAL DEGREE Philadelphia College of Osteopathic Medicine, PA
RESIDENCY Rowan University / Jefferson Health, NJ
FELLOWSHIP Urologic Oncology at Yale University, CT
Friendly, thorough, pleasant.
Makes you very comfortable
First time meeting Dr. McMahon. Very nice and efficient. Took good care of me and explained the procedure as he went along. I appreciated this very much.
Dr. Gregory McMahon is a great Doctor, Im very fortunate to have him as my Urologist. He was referred to me by one of the finest doctors at Lankenau.
Great as usual!!
Dr.McMahon was very nice and helpful by listening about what I have been experiencing concerning might health as well good communication through out the appointment.
Took the time to answer all Questions. Accommodated a time that worked well with our schedule considering the travel time to be seen. Staff very courteous
Sweetest doctor!!!!! Smart and clear on my treatment plan!!!
Always caring.
Excellent