Coronavirus Disease 2019 (COVID-19) Update

Madison Medical Affiliates & Ascension are working together to keep our community healthy during this time and prevent the spread of infection while also offering options for easier access to care.

  • If you have a fever, cough or shortness of breath and need care, please call your personal physician, as a first step. We recommend if you have symptoms, you should stay home and avoid exposing others until you can talk with a doctor.
  • Madison Medical Affiliates is offering TeleHealth visits with our providers through Ascension Online Care. Please call our office to schedule a TeleHealth visit.
  • New temporary visitor rules have been implemented to try to decrease the spread of coronavirus (COVID-19) and to keep our patients, families, care teams and the communities we serve safe. At this time, facilities near you may be restricting visitors. Please contact us before visiting.
  • If you are experiencing a life-threatening emergency or difficulty breathing, go directly to the ER or dial 911.

More about COVID-19 from Ascension

Coronavirus Disease 2019 (COVID-19) Update Close

Rachel Oosterbaan, M.D.

Rachel Oosterbaan, M.D.

Dr. Rachel Oosterbaan attended medical school at Wayne State University in Detroit, and she completed her residency in Internal Medicine at Harvard Medical School during her postdoctoral training. In addition to serving as an attending physician at Northwestern Medicine® Lake Forest Hospital in Lake Forest, Illinois and at Northwestern Memorial Hospital in downtown Chicago over the past 16 years, Dr. Oosterbaan also worked as an assistant professor at Northwestern University’s Feinberg School of Medicine since 2000. Dr. Oosterbaan is board certified in Internal Medicine. Her most recent achievements include being voted by Castle Connolly as a “Top Doctor” in the Chicago metropolitan area, as well as voted by US News Report as a “Best Doctor.”

LEARN MORE ABOUT INTERNAL MEDICINE »

Office Locations:

Seton Professional Building

13133 N Port Washington Rd, Suite G18 | Mequon, WI 53097
Appointments: (262) 243-5000