Dr. Ruben Perez

Joshua Kesterson, MD, is a fellowship-trained gynecologic oncologist and medical director of the gynecologic oncology program at UPMC in Central Pa. He received his medical degree from the University of Missouri and completed his residency in obstetrics, gynecology and women’s health at the University of Louisville, followed by his fellowship in gynecologic oncology at Roswell Park Cancer Institute. He is board-certified in obstetrics and gynecology and gynecologic oncology by the American Board of Obstetrics and Gynecology. Dr. Kesterson’s clinical interests include gynecologic oncology such as ovarian, cervical, and endometrial cancer, immunotherapy, and HPV, and his research interests include quality improvement, ovarian cancer, and endometrial carcinoma. He is a member of the Society for Gynecologic Oncologists, the Foundation for Women’s Cancer, and Alpha Omega Alpha Honor Society. Dr. Kesterson is rated as a Distinguished provider by MediFind in the treatment of Ovarian Cancer. His top areas of expertise are Endometrial Cancer, Ovarian Cancer, Ovarian Carcinosarcoma, and Sertoli-Leydig Cell Tumor.

Mark Cadungog is an Oncologist in Newark, Delaware. Dr. Cadungog is rated as a Distinguished provider by MediFind in the treatment of Ovarian Cancer. His top areas of expertise are Vulvar Cancer, Endometrial Cancer, Malignant Mixed Mullerian Tumor, Hernia Surgery, and Gastrostomy.

Gregory Willis, DO, specializes in gynecologic oncology and is certified by the American Osteopathic Board of Obstetrics and Gynecology. He practices at PinnacleHealth Women's Cancer Center and is affiliated with UPMC Lititz, UPMC Memorial, UPMC Hanover, UPMC Harrisburg, UPMC Community Osteopathic, and UPMC West Shore. He completed his fellowship at Community General Osteopathic Hospital, medical school at University of North Texas, residency at Erlanger Health System, and residency at Community Hospital of Lancaster. Dr. Willis is rated as a Distinguished provider by MediFind in the treatment of Ovarian Cancer. His top areas of expertise are Ovarian Carcinosarcoma, Virilizing Ovarian Tumor, Desmoplastic Small Round Cell Tumor, Ovarian Cancer, and Hernia Surgery.