The Saint Vincent faculty members bring many years of experience and expertise to the residency program, and each of them has diverse special interests essential to a comprehensive family practice education.

In addition to being professional educators, faculty members maintain clinical practices, adding practical experience to their well-rounded academic background. All of our faculty are board certified and committed to preparing you for a successful practice.

Timothy D. Pelkowski, MD, MS, FAAFP
Program Director

Timothy D. Pelkowski, MD is a native of Erie, Pennsylvania, and is the Program Director for the Saint Vincent Family Medicine Residency Program. He earned his medical degree from Case Western Reserve University in Cleveland, Ohio. He completed his Family Medicine residency in 2000 with the Saint Vincent Family Medicine Residency Program. He has completed fellowships in both Sports Medicine and Faculty Development. Dr. Pelkowski functions as the Director of Scholarship within the residency. He has served as the 139th President of the Erie County Medical Society, Chair of the Pennsylvania Medical Political Action Committee and as the President of the Saint Vincent Hospital Medical Staff in the past. He is the current District 8 Trustee to the Pennsylvania Medical Society Board. He is married to his wife Cassie, also a Family Medicine physician, and they have three children. His personal interest includes swimming.

Caitlin S. Clark, DO
Director of Medical Education, AHN Northern Region and Assistant DIO, AHN Saint Vincent Hospital

Caitlin S. Clark, DO, is a native of Annapolis, Md. She received her Bachelor of Science in biology from Villanova University. She attended the Philadelphia College of Osteopathic Medicine. She completed an internship at Geisinger Medical Center and graduated from the Saint Vincent Family Practice Residency Program. She has an interest in women’s health care, including prenatal care. Her personal interests include running and spending time with her family.

Kathleen A Costanzo, DO, CAQSM
Osteopathic Recognition & Sports Medicine Track Director

Doctor Costanzo practiced physical therapy for eleven years before deciding to
pursue a career in medicine. Her path led her to Osteopathy and she matriculated from LECOM in 2006.  She completed her Family Medicine Residency and Sports Medicine Fellowship at Saint Vincent Hospital in Erie, Pennsylvania. After completing training, she devoted the next six years to practice as a Primary Care Sports physician for Wellspan Orthopedics in York, Pennsylvania.  There she honed her orthopedic skills and provided medical coverage for a wide  range of amateur and professional sports teams. She is a team physician for USA Weightlifting and has traveled throughout the World to cover Team USA for Junior World Championships in addition to acting as medical director for several National Weightlifting events. She returned to Erie in 2016 to assume a role as faculty for Saint Vincent Family Medicine Residency. She serves as the key faculty member for SVFM Osteopathic Recognition and education as well as Sports Medicine Track within the family medicine residency. Her free time is spent traveling enjoying a variety of cultural experiences and international cuisines. She enjoys hiking and kayaking.