Shelby Krause, CRNP

Rachel Toney, MD Rachel Toney, MD, is a gastroenterologist with AHN Medicine Institute. She provides patient-centered general gastroenterological care. Dr. Toney went to medical school at University of Virginia School of Medicine in Charlottesville, Virginia. She did a fellowship in gastroenterology at AHN Allegheny General Hospital in Pittsburgh, Pennsylvania. She is certified by the American Board of Internal Medicine — Gastroenterology and is affiliated with the American Gastroenterological Association. Dr. Toney welcomes patients ages 18 and older.

Alexander H. Shannon, MD Alexander H. Shannon, MD, is a surgical oncologist, specializing in gastrointestinal oncology, peritoneal surface malignancies, and metastatic colorectal, hepatobiliary, and neuroendocrine cancers. He has expertise in robotic surgery, hepatic arterial infusion therapy, and cytoreduction surgery with hyperthermic intraperitoneal chemotherapy (HIPEC). Dr. Shannon earned his medical degree from Tufts University School of Medicine in Boston. He completed his general surgery residency at the University of Virginia Health System in Charlottesville. He received additional training through a fellowship in complex general surgical oncology at The Ohio State University James Cancer Hospital in Columbus. Dr. Shannon is board certified in general surgery and in complex general surgical oncology by the American Board of Surgery. He is a member of the Society of Surgical Oncology. Having grown up in Pittsburgh, Dr. Shannon is grateful to be able give back and help people in this community. He welcomes patients ages 18 and older.

Colleen Krajewski, MD, MPH, Director of Transgender Gynecology Colleen Krajewski, MD, MPH, Director of Transgender Gynecology, is a gynecologist with AHN Women, specializing in contraception, complex family planning, abortion, gender affirming care, office procedures, and adolescent gynecology. She prioritizes patient-centered care to meet patient''s needs. Dr. Krajewski went to medical school at University of Pittsburgh School of Medicine in Pittsburgh, Pennsylvania. She completed her residency at MetroHealth Medical Center/Cleveland Clinic in Cleveland, Ohio and did her fellowship in family planning at Johns Hopkins Hospital in Baltimore, Maryland. Dr. Krajewski is certified by the American Board of Gynecology and is affiliated with the American College of Obstetricians and Gynecologists. She has a subspecialty certification in Complex Family Planning. She sees both adolescent and adult patients.