Her areas of expertise include the following: anaphylaxis, sinusitis (sinus infection), and allergic conjunctivitis (eye allergy). She accepts Blue Cross/Blue Shield, Coventry, and TRICARE, as well as other insurance carriers. Before performing her residency at Northwestern Memorial Hospital, Dr. Grammer attended Northwestern University, Feinberg School of Medicine. She has received the distinction of Chicago Super Doctors. She is professionally affiliated with Northwestern Medical Group (NMG), Northwestern Memorial Hospital, and Northwestern University Feinberg School of Medicine. Dr. Grammer has an open panel.