Gastroenterology Fellows
Current Fellows
Kevin Groudan, MD
Year of Completion: 2025
Medical School: University at Buffalo Jacobs School of Medicine and Biomedical Sciences
Residency: UMass Chan Medical School-Baystate, Springfield, MA - Internal Medicine

Tiago Martins, DO
Year of Completion: 2025
Medical School: University of New England College of Medicine
Residency: UMass Chan Medical School-Baystate, Springfield, MA - Internal Medicine
Hello Everyone! I am proud to say that I'm from the area. Springfield/Baystate are home. It all started with a shadow experience in high school that tied me to Baystate. From that movement I knew that I wanted to train and work here. I attended medical school at University of New England College of Osteopathic Medicine and from there I was able to return to Western Massachusetts where I've been lucky enough to serve the community responsible for my achievements.
My friends say the correct answer to 99% of the questions about me is ‘food’. I enjoy trying different cuisines and exploring new restaurants. I'm also a huge HGTV fan, and you can often guess that my weekends off revolve around some type of home improvement project.
I can’t wait to start the next chapter of my life with the Baystate GI family and look forward to continuing my career here at Baystate!
Tushaar Shrimanker, MD
Year of Completion: 2026
Medical School: University College London
Residency: Greenwich Hospital and Yale School of Medicine Internal Medicine Residency Program Greenwich, CT
Syed Hamza Sohail, MD
Year of Completion: 2026
Medical School: Aga Khan University Medical College
Residency: UMass Chan Medical School-Baystate, Springfield, MA - Internal Medicine
Cristina Batarseh, MD
Year of completion: 2027
Med School: Hashemite University Faculty of Medicine, Jordan
Residency: Lahey Clinic Program (Internal Medicine - General) - Lahey Clinic
Aizaz Khan, MD
Year of completion: 2027
Med School: Shifa College of Medicine
Residency: UMass Chan Baystate – Internal Medicine
Past Fellows
Arshia Khorasanizadeh, MD
Medical School: American University of Integrative Sciences School of Medicine, Barbados
Residencies: SUNY Upstate Medical University Syracuse, NY-Internal Medicine & Long Island Jewish Hospital, Forest Hills Queens, NY-Chief Resident, Internal Medicine
Post-Graduate Position: Gastroenterologist, Genesis Hospital, Zanesville, OH
Kamesh Gupta, MBBS
Medical School: Armed Forces Medical College, India
Residency: UMass Chan Medical School-Baystate, Springfield, MA - Internal Medicine
Post-Graduate Position: Gastroenterologist, Genesis Hospital, Zanesville, OH
Vijaya Mukthinuthalapati, MBBS
Medical School: Kasturba Medical College Manipal, India
Residency: John H. Stroger Jr. Hospital of Cook County, Chicago, IL-Internal Medicine
Post-Graduate Position: Gastroenterologist, Dignity Health Medical Group, Santa Cruz, CA
Rinad Tabbalat, MD
Medical School: University of Jordan Faculty of Medicine, Jordan
Residency: UMass Chan Medical School-Baystate, Springfield, MA - Internal Medicine
Post-Graduate Position: Gastroenterologist, Northwest Gastroenterology & Endoscopy, Bellingham, WA
Kartikeya Tripathi, MBBS
Medical School: Sikkim Manipal Institute of Medical Sciences, India
Residency: St Vincent Hospital, Worcester, MA-Internal Medicine
Post-Graduate Position: Gastroenterologist and Assistant Prof SIU School of Medicine, Quincy Medical Group, Quincy, IL
Bushra Zia, MBBS
Medical School: Aga Khan University, Karachi, Pakistan
Residency: UMass Chan-Baystate, Springfield, MA - Internal Medicine
Post-Graduate Position: Gastroenterologist, Holyoke Medical Center, Holyoke, MA
Jean Chalhoub, MD
Medical School: American University of Beirut Faculty of Medicine, Lebanon
Residency: Staten Island University Hospital, Staten Island, NY-Internal Medicine
Post-Graduate Position: Advanced Endoscopy Fellowship, Staten Island University Hospital - Northwell Health, Staten Island, NY
Spencer Knox, MD
Medical School: American University of the Caribbean School of Medicine, Sint Maarten
Residency: Orlando Health, Orlando, FL-Internal Medicine
Post-Graduate Position: Gastroenterologist, Borland-Groover Clinic, Fleming Island, FL
Nicholas Cal, DO
Medical School: University of New England College, Biddeford, ME
Residency: UMMS-Baystate at Baystate Medical Center, Springfield, MA-Internal Medicine
Post-Graduate Position: Gastroenterologist, Baystate Gastroenterology, Springfield, MA
Jalaluddin Umar, MBBS
Medical School: Aga Khan University Medical College, Pakistan
Residency: SUNY Upstate Medical University, Syracuse, NY-Internal Medicine
Post-Graduate Position: Gastroenterologist, Allegheny Center for Digestive Health, Pittsburgh, PA

A Wonderful Place To Be
Back to Top