Muncie, IN 47304. Patient: 800-622-6575. Office Hours: Monday - Thursday: 8:00 a.m. - 5:00 p.m. Friday: 8:00 a.m. - 4:00 p.m. If you call before or after our office hours with an urgent problem, our answering service will relay your message to our on-call doctor. He or she will promptly return your call..