Dr. Chang
Susan Chang, MD, FACS
Breast Surgeon

Penn Women's Specialty Center

Dr. Chang is a graduate of the University of Pennsylvania and received her medical degree from Temple University School of Medicine. She completed a general surgery residency at the Robert Wood Johnson Medical School of the University of Medicine and Dentistry of New Jersey. Following her residency, Dr. Chang completed a fellowship in Breast Oncology at the John Wayne Cancer Institute in Santa Monica, California.

A board certified general surgeon, Dr. Chang confines her practice exclusively to the treatment of benign and malignant breast diseases.  She has a special interest in breast cancer screening and risk reduction and utilizes the most current breast conservation procedures.

Dr. Chang is in practice at Penn Women’s Specialty Center in West Chester.


Catherine Porter, DO
Breast Surgeon

Penn Women's Specialty Center 

For Catherine Markle Porter, DO, coming to Chester County Hospital means coming home. Dr. Porter was born at and later served as a candy striper for the same hospital that she now returns to as a Fellowship Trained Breast Surgeon.

This local talent attended St. Agnes School and Henderson High School before studying at Delaware County Community College and completing her undergraduate degree in microbiology at Humboldt State University in California.

Dr. Porter returned to the area to attend the Philadelphia College of Osteopathic Medicine, interned at Christiana Hospital in Delaware and completed her surgical residency at Cooper Medical Center in Camden, New Jersey. She then earned a surgical fellowship in Breast Oncology at Stanford University in California, where she received specialty training in treating breast cancer and high risk populations.

Dr. Porter has also served her country as a member of the AmeriCorps, where she was stationed in Denver. She has a husband and two young children and is happy to have returned to the West Chester area to become a part of Penn Women's Specialty Center.

Robert L. Giuntoli, II, MD
Gynecologic Oncologist

Penn Women's Specialty Center

Dr. Giuntoli specializes in the evaluation and treatment of women with gynecologic cancer and complex benign gynecologic conditions requiring surgery. He is an experienced surgeon and skilled in minimally invasive and robotic surgery.

Dr. Giuntoli received a medical degree from the Perelman School of Medicine at the University of Pennsylvania and completed a residency in obstetrics and gynecology at Duke University Medical Center. He completed a fellowship in breast health at Brown University School of Medicine and a fellowship in gynecologic oncology at the Mayo Clinic. Dr. Giuntoli spent the past 11 years as a gynecologic oncologist at The Johns Hopkins University School of Medicine.

Dr. Giuntoli joins a team of medical oncologists and radiation oncologists at Chester County Hospital. He also works closely with genetic counselors and geneticists to provide genetic screening for individuals with a family and/or personal history of cancer. He is a fellow of the American College of Obstetricians and Gynecologists and American College of Surgeons.

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