Advocate Illinois Masonic Medical Center
maps and directions
a patient or visitor a physician or healthcare professional an employer
Decrease (-) Restore Default Increase (+) font size

medical services home
search by doctor name 
Doctor Name Contains (Smart Search)
search by specialty

search by city/zip code
Find a doctor near your location by entering a city name OR ZIP code.

Within miles:
0 1 5 10 15 30 30+

search by insurance
Insurance Name Contains (Smart Search)
 (what's this)

Meet Our Team

The gastroenterology team at Advocate Illinois Masonic Medical Center is committed to excellence in diagnosing, treating and managing gastrointestinal disorders and diseases. Our dedicated specialists collaborate with other medical professionals on staff to ensure patients receive the most comprehensive care possible, tailored to their specific medical needs.


Andrew Albert, MD William Markey, MD
George N. Atia, MD Arun Ohri, MD
Samuel Castillo, MD Arturo Olivera MD
Ali Esmaili, MD Daksesh Patel, DO
Keikhosrow Ghazanfari, MD Lakshmaiah Setty, MD
Frank Konicek, MD

Colon and Rectal Surgeon

Joaquin Estrada, MD

Find a gastroenterologist.

Contact Us

To learn more, for help finding a physician or to schedule an appointment call 1.800.3.ADVOCATE (1.800.323.8622). You can also find a physician and request an appointment online.

quick links patient information health care professional information employer information connect with Advocate

About Advocate | Contact Us | Jobs | SiteMap | Terms of Use | Notice of privacy practices ®Advocate Health Care, Downers Grove, Illinois, USA | 1.800.3.ADVOCATE | TDD 312.528.5030