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Dr. In Whan Oh
Jackie Tomko
Jacqueline J. Gagen
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Welcome to the Obstetrics and Gynecology Associates of Cortland, New York. Our specialists include Dr. In Whan Oh, MD, Obstetrician/Gynecologist Physician and Surgeon; Jackie Tomko, NP, and Jacqueline Gagen, Certified Nurse Midwife.