Dr. John N. Campbell is an internist in Kentwood, Michigan and is affiliated with Corewell Health Grand Rapids Hospitals-Blodgett and Butterworth. He received his medical degree from University of Wisconsin School of Medicine and Public Health and has been in practice for more than 20 years. Dr. John N. Campbell has expertise in treating hypertension & high blood pressure, spinal stenosis and spondylosis, diabetes, among other conditions - see all areas of expertise. Dr. John N. Campbell accepts Medicare, Aetna, Humana, Blue Cross - see other insurance plans accepted.