MIDWEST NEPHROLOGY ASSOCIATES Ascension Highland Clinic - Mequon 12800 North Port Washington Road Mequon, WI 53097 GET DIRECTIONS PROVIDERS Omer Afzal, M.D. Sarah Simon, RN, APNP CONTACT Phone: 262-243-9600 LOCATION & APPOINTMENT INFORMATION MAP SCHEDULE AN APPOINTMENT LET US KNOW WHAT DATE & TIME YOU PREFER AND SOMEONE FROM OUR TEAM WILL GET BACK TO YOU AS SOON AS POSSIBLE TO CONFIRM.