Patient Reviews

Reviews reflect patients' level of satisfaction with the care they received from this provider. Dr. Mark Day xhas an overall rating of 5.0.


Dr. Mark Day, MD is a Doctor primarily located in Vandalia, IL, with other offices in Wood River, IL and Vandalia, IL. He has 11 years of experience. His specialties include Pediatrics. Dr. Day is affiliated with St Anthonys Memorial Hospital and Fayette County Hospital. He speaks English.


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Specialties & Expertise

Dr. Mark Day has the following 1 specialty.


A pediatrician is a doctor who specializes in the regular care of children, as well as the diagnosis and treatment of illness in children. Young patients are often more complicated to treat because they are still growing and developing.
While pediatricians may sub-specialize in specific therapy areas like oncology, surgery, ophthalmology, and anesthesiology, in general, pediatricians provide services like vaccinations, health exams, and treatment of common ailments and injuries. In addition, pediatricians are trained to handle the complex emotional and behavioral issues faced by children, especially during puberty.
Pediatricians normally see their patients from birth until the age of 18, although some may agree to treat patients into their early 20s, if requested.

Locations & Directions

1510 Sunset Dr
Vandalia, IL 62471

46 Indian Dr
Wood River, IL 62095

1442 N 8th St
Vandalia, IL 62471

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Dr. Mark Day, MD is similar to these 2 Doctors near Vandalia, IL.