Arshia Khorasani-Zadeh, M.D., gastroenterologist, has joined Genesis Digestive Disease Specialists. Dr. Khorasani-Zadeh received his medical degree from American University of Integrative Sciences, Netherlands Antilles. He completed an Internal Medicine residency at Upstate Medical University, Syracuse, New York, where he served as Chief Resident.

Dr. Khorasani-Zadeh has served in various capacities, including Chief GI Fellow at University of Massachusetts Baystate Medical center and Chief Resident at Long Island Jewish Hospital Forest Hills where he was a part of the Admissions Committee and Root Cause Analysis Committee. During his residency at SUNY Upstate Medical University, he served on the Admissions Committee, Physician’s Advisory Committee, the Quality Improvement Task Force and the Social Committee.

Dr. Khorasani-Zadeh further advanced his expertise with a Gastroenterology fellowship at University of Massachusetts – Baystate Medical Center, Springfield, Massachusetts. He has received advanced training in EGD, Colonoscopy, Push Enteroscopy, Small Bowel Video Capsule Endoscopy, Savary and Balloon dilations, Variceal Banding, PEG/PEG-J Placement, Bravo pH placement and Interpretation and Diagnostic and therapeutic Paracentesis.

Dr. Khorasani-Zadeh believes in a patient-centered approach, emphasizing open communication, compassion, and evidence-based practices. He is dedicated to empowering patients with the knowledge and support they need to make informed decisions about their health. When not caring for patients, Dr. Khorasani-Zadeh enjoys cooking a good BBQ.

Gastroenterology

University of Massachusetts-Baystate Medical Center, Springfield, Massachusetts

American University of Integrative Sciences

Netherland Antilles

Chief Resident: Northwell Health, Long Island Jewish Hospital-Forrest Hills, New York, NY

Internal Medicine Resident: Upstate Medical University, Syracuse, NY

Internal Medicine

Thomas Grant Lewis, D.O., has joined the Genesis Center of Surgical Excellence, specializing in general surgery. Dr. Lewis is a graduate of Kentucky College of Osteopathic Medicine, where he earned his doctor of osteopathic medicine degree. He completed a general surgery residency at McLaren Greater Lansing and served as Chief Resident from 2023 to 2024. Dr. Lewis also holds a bachelor of arts in biology with a concentration in cellular and molecular biology from Thomas More College, Crestview Hills, Kentucky. Since 2019, he has been an adjunct professor of surgery at Michigan State University College of Osteopathic Medicine, contributing to the education of future medical professionals. Prior to medical school, Dr. Lewis conducted cancer research at the Wood Hudson Cancer Research Laboratory, where he contributed to breast cancer receptor studies and mentored student researchers in lab techniques and scientific analysis.

2015 - 2019 Kentucky College of Osteopathic Medicine

2019 - 2024 McLaren Greater Lansing