Dr. Jonathan F. Grier is from New York City and attended college at New York University followed by Medical School at New York University. He then completed a fellowship in Gastroenterology and Hepatology at Louisiana State University.
He moved with his family to Hollidaysburg in 1995 and has been practicing in Altoona since then. Dr. Grier is a regular supporter of the Catholic Church and the local arts community.
Dr. Grier treats reflux, ulcers, diseases of the liver, gallbladder, and pancreas and any other condition of the gastrointestinal tract. Colon cancer screening and prevention is another common service he provides.