John Timothy Martsolf MD became an Medical Genetics doctor in 1970. Male doctor. Specialty Dr. Martsolf specializes in the following: Medical Genetics Location Grand Forks Grand Forks ND  58202 phone: 701-777-4277 fax: 701-777-3220 email: website: Education Dr. Martsolf was educated at the following institutions: Medical School Attended: Jefferson Med Coll-Thos Jefferson Univ, Philadelphia Pa 19107