About Colorectal Surgical Associates

Highly Specialized Diagnosis, Treatment, and Surgical Care of Conditions Related to the Colon and Rectum

For patient convenience, we offer 4 office locations in the Kansas City metro area, 1 in Kansas and 3 in Missouri – Overland Park, Gladstone, Independence, and Lee’s Summit. We are affiliated with many hospitals and surgical centers throughout Kansas City. We are honored to serve you.

Meet our Surgeons

Lina O’Brien, MD

Jeremy Cravens, MD

Ben Mizrahi, MD

Darcy Shaw, MD

Robert Kress, DO

Stephanie Peters, MD

Pierre Castera, MD – Emeritus

Meet Our Nurse Practitioners

Suzie Wilson, APRN, AGACNP-BC

Nicole Ann Zwick, MSN, APRN, FNP-C

Vivian Chen, APRN, FNP-C

Ann Barela, APRN, FNP-C