Dr. John Martin
About Dr. John Martin SPECIALTY / SUBSPECIALTIES: Gastroenterology / General Gastroenterology, Advanced Endoscopic InterventionalSUBSPECIALTIES : General Gastroenterology, Advanced Endoscopic InterventionalAFFILIATED HOSPITALS : Mayo ClinicYEARS OF EXPERIENCE : 21+GENDER : Male Education & Experience Medical School & ResidencyUniversity of Pittsburgh Medical …