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Andrew Guminski, MD

Internal Medicine
Family Medicine

Marshfield Medical Center - Horicon Center

610 Washington St. Horicon WI 53032
Phone: 920-643-7170

Fax: 920-643-7165



Patient Care Philosophy

“I’m always looking to give my patients high-quality care. I make sure to spend as much time with patients as needed.  Medical issues can often be confusing and highly technical, so I pride myself on keeping patients informed and knowledgeable.  It is also important to have an open, trusting relationship with my patients, and involving them in their health care decisions.”

“I chose to practice family style medicine because it allows me to help people directly and make a positive impact on their lives.”

- Dr. Andrew Guminski

Area of Specialty

“I’m here to treat the whole family, from birth to old age. I’m board certified in both Internal Medicine and Pediatrics, so I have in-depth knowledge and training when it comes to treating chronic diseases and complicated health issues. Cardiovascular disease, diabetes, and management of obesity/weight loss are of particular interests of mine.”

Personal Interests

“My wife and two children love the outdoors. We enjoy downhill and cross-country skiing, tennis, hiking and gardening. I also love gourmet cooking.”


  • Medical Degree from St. George’s University School of Medicine, True Blue, Grenada
  • Internship and Residency with Michigan State College of Human Medicine at Hurley Medical Center, Flint, Mich.
  • Board certified in Internal Medicine and Pediatrics