John C. Messenger, MD

John Messenger, M.D., is medical director of the Cardiac Care Unit (CCU) at MemorialCare Heart and Vascular Institute. The 23-bed unit provides leading-edge care for patients after a heart attack or major cardiac surgery.

Working closely with a staff trained and certified in heart conditions and procedures, Dr. Messenger oversees administrative functions in the CCU, ensuring that high-quality, patient-centered care is delivered on a consistent basis in accordance with best practice models.

This physician is a member of MemorialCare Physician Society which drives clinical outcomes and performance for MemorialCare Health System.


  • Cardiology
  • Internal Medicine

Types of Care

MemorialCare Hospital Affiliations