All of our physicians and pediatric nurse practitioners see patients at each location. Western Michigan Pediatrics has 2 locations.
Our Grand Rapids location is just east of I-96 at the Cascade Road exit on Kenmoor Ave. Our Jenison office is located on Georgetown Center Drive, between Baldwin and 20th Ave.
Dr. John Koetsier M.D.
Dr. John Koetsier received his undergraduate degree in chemistry from Calvin College and his medical degree from Wayne State University School of Medicine. He completed his pediatric residency training at Butterworth Hospital in 1976 and joined Western Michigan Pediatrics that summer. He married Deb Koetsier in 1976 and they have 4 children and 7 grandchildren. He enjoys biking, fishing, reading, traveling, and spending time with his grandchildren.
Dr. Dennis Lake, M.D.
Dr. Dennis Lake grew up in Detroit and now lives in Cascade with his wife Kim. He attended University of Michigan undergrad and went on to Wayne St University to receive his medical degree. He joined Western Michigan Pediatrics in 1980 after he completed his residency at Butterworth Hospital. He has 4 sons, including twins, one daughter and 2 grandchildren. He enjoys watching college sports, especially Michigan football, and loves the Detroit Tigers. He likes to read, enjoys photography,and has a plethora of trivia knowledge.
Dr. Megan Clark M.D.
Dr. Megan Clark was raised in Grand Rapids, completed her undergraduate studies at Miami University in Ohio, then attended University of Michigan Medical School. She finished pediatric residency training at Devos Children's Hospital and joined the practice in 1998. She resides in Ada with her two terrific teenage children and her two Labradors. She loves the outdoors and music: running, gardening, and playing her piano or cello. She has a strong interest in nutrition and enjoys cooking.
Dr. Jennifer VanZee, M.D.
Dr. Jennifer VanZee is a graduate of the University of Michigan (BS) and Michigan State's College of Human Medicine (MD). She completed her Pediatric Residency in Grand Rapids at Helen DeVos Children's Hospital. She is proud to have been at WMP since 2001. Dr. VanZee has been a life-long resident of Grand Rapids, MI and loves to enjoy all of the great things the Greater Grand Rapids area has to offer especially local theater and Frederick Meijer Gardens. She is married to another Pediatrician and has three wonderful school-age boys. She enjoys attending sporting events for her children, rooting for the University of Michigan's football and basketball teams, flower gardening, and traveling.
Kathleen Buller C.P.N.P.
Cathy Buller received her Nursing degree at Mercy College of Detroit and her Master’s degrees in both primary care of pediatrics and child and adolescent psychology nursing. She has 3 children, a sheepdog and loves to read, ride her bike on trails and to knit.
She has been with Western Michigan Pediatrics since 1989.
Dr. Shawna Pierce, M.D.Dr. Shawna Pierce received her undergraduate degree from Indiana Wesleyan University and her medical degree from Wayne State University School of Medicine. She completed residency at Helen Devos Children's Hospital. She lives in Hudsonville with her husband, 3 kids and her dog. Boating, water skiing, traveling and chasing around her 3 young girls are what she enjoys most. Dr. Pierce see patients at the Jenison location.
Dr. Jeremy Veenema, D.O.
Dr. Veenema is a Grand Rapids native and graduate of Calvin College where he studied Pre-Medicine, Economics, and Spanish. He married his wife Laura in 2009 and then moved to the Chicago region for his medical studies. He received his medical degree from Chicago College of Osteopathic Medicine at Midwestern University and completed his pediatric residency at Advocate Children's Hospital in Oak Lawn, Illinois. He joined Western Michigan Pediatrics in 2016. He loves spending time with his wife and two young boys, running, spending time outdoors, cooking, and exploring the Grand Rapids area.