Internal Medicine Physicians
Marci R. Bultemeier, D.O.
Dr. Bultemeier is a graduate of the University of Health Sciences, College of Osteopathic Medicine, Kansas City. She has practiced at Grand Traverse Internal and Family Medicine since 2001.
Family Practice Physicians
Elizabeth L. Hughes, D.O.
Elizabeth L. Hughes, D.O.
Elizabeth L. Hughes, D.O.
Dr. Hughes graduated from Michigan State University College of Osteopathic Medicine in 2001. She has practiced at Grand Traverse Internal and Family Medicine since 2017.
Jason S. Schreiber, D.O.
Elizabeth L. Hughes, D.O.
Elizabeth L. Hughes, D.O.
Dr. Schreiber graduated from Edward Via College of Osteopathic Medicine in Spartanburg, South Carolina in 2019. He has practiced at Grand Traverse Internal and Family Medicine since July 2023.
Janine M. Kohler, D.O.
Elizabeth L. Hughes, D.O.
Janine M. Kohler, D.O.
Dr. Kohler graduated from Michigan State University College of Osteopathic Medicine in 1996. She has practiced at Grand Traverse Internal and Family Medicine since June 2024.
Practice Manager
Tammy Hollenbeck
Tammy’s role is to ensure that all business functions of the business are operating smoothly. She works closely with the physicians and staff to keep them informed, equipped and supported to provide exceptional care to our patients. Her goal is to help people and provide outstanding customer service. She maintains an open-door policy to everyone including patients and families. Tammy joined Grand Traverse Internal and Family Medicine in 2016.