Doctors in Richfield OhioHome / Doctors in Richfield Ohio Near Me In: Richfield (City) Medical Mutual of OhioMedical Mutual of Ohio is an Insurance agency in Richfield, Ohio licensed by the State of Ohio. Please leave a review of Medical Mutual of Ohio if you have been a patient of Medical Mutual of Ohio. Medical Mutual ofPhone: (800) 382-5729Leave a Google Review 7 Reviews View all