Great news – SPI is now part of Prime Healthcare!
There will be no disruption to your care as your SPI clinical team will continue providing care at Olympia Fields Hospital and clinic locations.

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Gastroenterology Fellowship Program

Thank you for your interest in the Gastroenterology Fellowship Program at Olympia Fields Hospital. This is a three-year fully accredited ACGME training program with a total of six fellows.

The gastroenterology fellows gain comprehensive experience managing a diverse population of inpatients and outpatients with the full spectrum of gastrointestinal/endoluminal, hepatobiliary, and pancreatic diseases. Additionally, didactic sessions and clinical research opportunities are incorporated into the curriculum. Upon completion of the program, fellows will have the skillset to become clinical and academic leaders in gastroenterology. Recent graduates have entered private or academic practice or have pursued an additional year of fellowship in advanced endoscopy.

At Olympia Fields Hospital, we promote clinical and academic excellence with the goal of providing exceptional patient care in gastroenterology and liver diseases. We hope that the information on the website provides you with details about our fellowship, rotations, curriculum, current fellows and faculty, and the application process. Thank you for considering our fellowship program, and we look forward to hearing from you!

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Olympia Fields Hospital’s Fellow Cohort 2026-2029 (Left to Right): Dr. Hardeep Ahdi, Dr. Jay Shah, Dr. Dexter Nwachukwu, Dr. Nabiha Haider, Dr. Shil Punatar, Dr. Zahra Dossaji
Olympia Fields Hospital’s Faculty and Fellow Cohort (2026-2029) (Left to Right): Dr. Zohair Ahmed (Program Director) , Carien Williams, Dr. Hardeep Ahdi, Dr. Jay Shah, Dr. Dexter Nwachukwu, Dr. Nabiha Haider, Dr. Shil Punatar, Dr. Zahra Dossaji, Dr. Tilemahos Spyratos, Dr. Amer Alsamman (Associate Program Director)

Contact Us

Olympia Fields Hospital Gastroenterology Fellowship Program
​20201 South Crawford Ave,
​Olympia Fields, IL 60461

Program Coordinator

Carien Williams, JD MS

Carien Williams, JD MS
708-855-7127

Law School: Washington University in St. Louis
Bio: I am a recent arrival to graduate medical education, having spent twelve years in undergraduate medical education where I held various positions from academic skills specialist to Assistant and Associate Dean for Curriculum at the University of Illinois, Urbana and Geisinger Commonwealth School of Medicine in Pennsylvania. I am fascinated with the complexity of graduate medical education and am excited to see medical students transition to physicians.

carien.williams@franciscanalliance.org