About
Dr. Daniel Koster, MD, holds board certification in Family Medicine and brings more than 25 years of experience in family practice and emergency medicine. He earned his medical degree from the University of Michigan Medical School and completed his residency in Family Medicine at the University of Wisconsin in 1990. In 2002, he launched Bellin's Executive Health program in Green Bay. Three years later, he founded EoMed, the first concierge practice in northeast Wisconsin.
Dr. Koster's clinical interests span nutrition, fitness, brain health, dementia prevention, substance abuse, depression, and travel medicine. He also focuses on end-of-life planning and serves as an expert witness in medical-legal cases. He has advised business leaders on health topics and given interviews to print and broadcast media on health policy. , which lays out a framework for individuals to build their own best health care and offers a prescription for reforming the American medical system. He presents the Evolutionize Your Health! program to audiences ranging from 5 to 500.
Education & Training
Medical School
University of Michigan Medical School
Residency
Family Medicine, University of Wisconsin (completed 1990)
Additional Training
Started Bellin's Executive Health program in Green Bay in 2002
Certifications
Conditions Treated
Who is Dr. Koster right for?
Dr. Koster is a strong fit for adults who want a deeply engaged primary care physician with broad clinical reach. Patients managing chronic or complex conditions, including depression, substance abuse, or cognitive health concerns, benefit from his experience. Executives seeking thorough annual physicals with comprehensive lab analysis and personalized health reports will find his executive physical program well-suited to their needs. Frequent travelers, individuals planning end-of-life care, and families looking for direct physician access around the clock also fit well within his practice.
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Frequently Asked Questions
Dr. Koster treats a wide range of conditions through his family medicine practice. His clinical interests include dementia, depression, substance abuse, and brain health. He also addresses nutrition, fitness, and metabolic concerns. Beyond primary care, he provides travel medicine consultations and end-of-life planning for individuals and families.
Yes. Dr. Koster holds board certification in Family Medicine. He completed his residency in Family Medicine at the University of Wisconsin in 1990 and earned his medical degree from the University of Michigan Medical School.
Dr. Koster has practiced medicine for more than 25 years. His background spans family practice and emergency medicine. In 2002, he built Bellin's Executive Health program in Green Bay before founding EoMed in 2005.
Yes. Dr. Koster personally accompanies members to important specialist appointments. This is one of the direct-access benefits EoMed members receive as part of their membership.
Yes. Dr. Koster serves as an expert witness in medical-legal cases. He has extensive experience advising on medical and health policy topics and has provided interviews to print and broadcast media.
The EoMed Executive Physical is a comprehensive medical examination that Dr. Koster personally leads. He reviews your medical records before the appointment so he arrives already familiar with your history. The exam includes a detailed health history discussion, nutrition and fitness assessments, and comprehensive lab testing. At the end, Dr. Koster prepares a personalized health report you keep for reference.
Yes. Dr. Koster provides individual and family counseling for relationships, substance abuse, and depression. These services sit alongside his broader family medicine and preventive health work.
Dr. Koster presents Evolutionize Your Health! to audiences ranging from 5 to 500 people. He tailors each session to the audience, from a lunch-hour talk to a full-day seminar. The presentation draws on his three decades of medical experience and covers how individuals and communities can build better health care.
Yes. Dr. Koster offers EoMed Business Health services to companies. He advises on wellness programs, nutrition, workplace safety, and medico-legal issues. Companies engage him as a concierge physician to support executive health and workforce well-being.
Doctor profile last updated June 9, 2026