Request an Appointment
Gastrointestinal Associates LLC
Gastrointestinal Associates LLC
Mon – Fri: 8:00 am – 5:00 pm
Sat – Sun: Closed
Request An Appointment
If you are experiencing a medical emergency, please call 9-1-1.
To schedule an appointment, please call 573-777-8818 or click the “Message Us” button located at the bottom right corner of your screen and a member of our team will contact you within 48 hours.
Our Providers
Bradley Anderson, M.D.
Gastroenterologist
in Columbia,
MO
Robyn Barlow, N.P.
Nurse Practitioner
in Columbia,
MO
Peter Jay Cleavinger, M.D., Ph.D.
Gastroenterologist
in Columbia,
MO
Kevin D. Halsey, M.D.
Gastroenterologist
in Columbia,
MO
Jeremiah Hays, N.P.
Nurse Practitioner
in Columbia,
MO
Nicolas Llorens, M.D.
Gastroenterologist
in Columbia,
MO
Rita Lutz, N.P.
Advanced Gerontological Nurse Practitioner
in Columbia,
MO
Matthew Struttmann, M.D.
Gastroenterologist
in Columbia,
MO
Laura Williams, N.P.
Nurse Practitioner
in Columbia,
MO
Michael D. Williams, M.D.
Gastroenterologist
in Columbia,
MO