Gregory J. Diorio, DO

4.90 out of 5 (151 ratings, 62 reviews)
Ratings and Reviews


Cooper University Health Care Titles

  • Urologist
  • Urologic Oncologist

Board Certifications

  • American Board of Surgery (Urology)

Professional Type

Cooper University Physician



Office Locations

Camden, Camden, Voorhees
Cooper Advanced Care Center - Urology

Three Cooper Plaza
Suite 403
Camden , NJ 08103
Phone: 856.963.3577
Maps & Directions

Cooper Urology at Voorhees

2401 Evesham Road
Voorhees , NJ 08043
Maps & Directions

Education & Training

Medical SchoolPhiladelphia College of Osteopathic Medicine, Philadelphia, PA
InternshipGeneral Surgery - Albert Einstein Medical Center, Philadelphia, PA
ResidencyUrologic Surgery - Albert Einstein Medical Center, Philadelphia, PA
FellowshipUrologic Oncology - H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL


  • American Osteopathic Association
  • American College of Osteopathic Surgeons
  • American Urologic Association
  • Society of Urologic Oncology

Awards and Honors

  • National Cancer Institute KO5 Established Investigator Award: “Infection and Cancer Research: A New Frontier in Cancer Prevention and Control”, 2015
  • Excellence in Robotic Surgery - Albert Einstein Medical Center, 2015


Sosenko, A., Owens, R. G., Yang, A. L., Alzubaidi, A., Guzzo, T., Trabulsi, E., Danella, J., Diorio, G., Reese, A., Tomaszewski, J., Ginzburg, S., Smaldone, M., Fonshell, C., Syed, K., Jacobs, B., Singer, E. A., & Raman, J. D. (2022). Non-infectious complications following transrectal prostate needle biopsy - Outcomes from over 8000 procedures. Prostate international, 10(3), 158–161.

Piraino, J. A., Snow, Z. A., Edwards, D. C., Hager, S., McGreen, B. H., & Diorio, G. J. (2020). Nephroureterectomy vs. segmental ureterectomy of clinically localized, high-grade, urothelial carcinoma of the ureter: Practice patterns and outcomes. Urologic oncology, 38(11), 851.e1–851.e10.

Ottenhof, S. R., Leone, A., Djajadiningrat, R. S., Azizi, M., Zargar, K., Kidd, L. C., Diorio, G., Mosiello, G., Graafland, N. M., Spiess, P. E., & Horenblas, S. (2019). Surgical and Oncological Outcomes in Patients After Vascularised Flap Reconstruction for Locoregionally Advanced Penile Cancer. European urology focus, 5(5), 867–874.

Tang, D. H., Djajadiningrat, R., Diorio, G., Chipollini, J., Ma, Z., Schaible, B. J., Catanzaro, M., Ye, D., Zhu, Y., Nicolai, N., Horenblas, S., Johnstone, P. A. S., & Spiess, P. E. (2017). Adjuvant pelvic radiation is associated with improved survival and decreased disease recurrence in pelvic node-positive penile cancer after lymph node dissection: A multi-institutional study. Urologic oncology, 35(10), 605.e17–605.e23.

Leone, A., Diorio, G. J., Pettaway, C., Master, V., & Spiess, P. E. (2017). Contemporary management of patients with penile cancer and lymph node metastasis. Nature reviews. Urology, 14(6), 335–347.

Ratings and Reviews

Ratings and reviews come from patient responses to health care provider-related questions on the Clinician and Group Consumer Assessment of Healthcare Providers and Systems (CG-CAHPS) Patient Experience Survey that Cooper sends to patients after outpatient office visits.  Learn more about our survey and how ratings are calculated >>

Overall Rating

4.90 out of 5 (151 ratings, 62 reviews)
Dec 12, 2023
Well satisfied each time I deal with Cooper Health!
Dec 12, 2023
Very impressed with the whole team and professionalism at MD Anderson!
Dec 12, 2023
Everyone is very pleasant and highly professional in every area of my visit
Dec 12, 2023
All good
Dec 12, 2023
Doctor Diorio and his staff treat us with respect, empathy and professionalism. It was our first time going to this medical facility and we feel very comfortable and welcome.
Dec 12, 2023
Great overall experience
Dec 12, 2023
Good visit,great doctor
Dec 12, 2023
Great experience!
Nov 12, 2023
It was a pleasant experience
Nov 12, 2023
Staff and facility were excellent. I have been very impressed by the high quality of care that I have received from the Cooper system.