Anesthesia Services


Northeast Missouri Ambulatory Surgery Center partners with Hannibal Anesthesia Associates, LLC to provide comprehensive anesthesia care and pain management services. The anesthesia team is comprised of Tria Wilhite, M.D., Heidi Hays, Certified Registered Nurse Anesthetist (CRNA) and Rachel Marshall, CRNA.

After registering with the front desk, a nurse will escort you to the Pre-operative area. After changing clothes into a patient gown, a short medical history will be taken and reviewed by a member of the anesthesia team. During that time, the anesthesia associate will discuss with you the alternative anesthesia methods appropriate to your surgery or procedure. Once a course of action has been agreed upon by you and the anesthesia associate, the pre-operative nurse will ask for your signature on an operative and anesthesia consent. You are encouraged to read the consent carefully as it confirms your understanding of the procedure and possible risks/complications.

Links are provided below for additional information on ambulatory anesthesia and pain management. This information is provided through the American Society of Anesthesiologists. The information contained through these links is in general terms. You are highly encouraged to discuss any questions or concerns with your physician or anesthesia provider the day of the procedure.

Important Links:

Since Hannibal Anesthesia Associates is a separate company, you can expect to receive a separate bill for any charges or balance not paid by insurance. Please see “About Your Bill” for additional details.

We hope you find your experience to be pleasant. Please feel free to “Contact Us” with any questions.