Providers

Gastroenterology Associates of Western Michigan, PLC has been providing state-of-the-art care for our patients in the West Michigan region since 1985. Our experienced healthcare professionals are committed to providing you with an exceptional care experience.

Allan Coates, DO

Dr. Allan Coates is board certified in Gastroenterology and Internal Medicine. Dr. Coates earned a Bachelor’s Degree in Biology from Western Michigan University and a Doctor of Osteopathic Medicine from the College of Osteopathic Medicine & Surgery in Des Moines, Iowa. He completed his Internal Medicine internship and residency at the Grand Rapids Osteopathic Hospital in Grand Rapids, Michigan, and received his fellowship training in Gastroenterology from the University of Michigan Medical Center in Ann Arbor, Michigan.

Jordan Walker, DO

Jordan Walker, DO is a graduate from MSUCOM, Class of 2022. Dr. Walker’s areas of medical interest include malignant and immune-related disease processes, with a personal passion for Gastroenterology. Dr. Walker has conducted research on pancreatitis and hepatitis. He has a special interest in colon cancer as well as various other aspects of Gastroenterology.

 

Katherine Baker, FNP

Katherine Baker, FNP-C is a board-certified Family Nurse Practitioner and has been with Gastroenterology Associates since 2020. Katherine holds a special interest in metabolic associated liver disease and functional gastrointestinal disorders. As a provider, she enjoys and prioritizes giving her patients the time and attention to not only address their health concerns, but to establish connections in which the patient feels valued and comfortable. In addition to gastroenterology, her nursing experience has spanned medical-surgical, surgery, endoscopy, post anesthesia care, and weight management. She is a member of the American Academy of Nurse Practitioners and American College of Gastroenterology. Outside of the office, she loves to spend time with her husband and daughters, often chauffeuring and cheering the girls on in whichever sport they are in that season, explore outdoors, run, race triathlons, and read.

 

Julia Valdespina, Nurse Practitioner with Gastroenterology Associates of Western Michigan.

Julia Valdespina, FNP

 

Sharyn Coates, Dr. O.T., OTRL, BCB-PMD