Meet Our Providers
Our GI Physicians
The experienced GI physicians at Mesa GI are board certified in gastroenterology/hepatology and have undergone extensive training in diagnostic & therapeutic endoscopy. Select a photo to view the provider bio.

Mary A. Atia, M.D.
With Mesa GI Since 2024

Brian Fung, M.D.
With Mesa GI Since 2023

Andrew Gradé, M.D.
With Mesa GI Since 1998

Nilay H. Kavathia, M.D.
With Mesa GI Since 2014

Rohit Mahajani M.D.
With Mesa GI Since 2020

Sarabdeep Mann, M.D.
With Mesa GI Since 2021

Sumir Patel, M.D.
With Mesa GI Since 2004
Advanced Practice Providers
Our nurse practitioners and physician assistants work closely with our physicians to assist in providing you with personal treatment and care. Select a photo to view their bio.

Rebecca L. McCollaum, FNP

Laurie Peterson, PA-C

Maralee Wagner, NP
Retired Physicians
We are concerned about continuity of care at Mesa GI. If your former doctor has retired, please rest assured that our clinic will continue to take great care of you. Contact us at 480-461-1088 to schedule an appointment today.

Phillip G. Foutch, D.O.
Retired 2020

Mark Hoefer, M.D
Joined 1978 - Retired 2014

Michael Rock, M.D.
Joined 1976 - Retired 2012

Robert L. Sawyer Jr., M.D.
Retired 2023

Finis Taylor, M.D.
Joined 1980 - Retired 1993

Shiv Verma, M.D.
Joined 2011 - Retired 2023
Contact Mesa GI
Our aim at Mesa GI is to help our patients achieve better digestive health and an overall improvement in their quality of life. To make an appointment at Mesa GI, call 480-461-1088 today.
