Dr. Aji B. Njie

Christopher Saddler, MD, is a UW Health infectious disease doctor and an assistant professor in the Department of Medicine, Division of Infectious Diseases at the University of Wisconsin School of Medicine and Public Health. Dr. Saddler has special expertise in transplant infections and immune-compromising conditions.Dr. Saddler helps doctors diagnose and treat infectious diseases, including complex conditions. He treats varied disorders ranging from fungal infections and infectious diarrhea to non-tuberculosis bacterial infections and rare viral diseases. His clinical interest focuses on treating people with immune system problems that increase their risk for infections. These include organ transplant recipients, people with cancer and those who have had bone marrow transplants or chemotherapy.Dr. Saddler is a teacher and problem-solver at heart. After easing patients’ fears, he educates them about their condition and helps them understand their treatment options. He takes a patient-centered approach to care, individualizing treatment to meet each patient’s medical needs and personal values.Dr. Saddler also conducts research to advance the prevention, treatment and management of infectious disease. He leads clinical trials and other studies, including studies focused on infections that present a higher risk to transplant patients.In his free time, Dr. Saddler enjoys spending time with his family, traveling and staying active.It's rewarding to care for patients and know you made a real difference. Seeing people get better — sometimes much better — is amazing. Dr. Saddler is highly rated in 6 conditions, according to our data. His clinical expertise encompasses Cytomegalovirus Infection, Cytomegalic Inclusion Disease, Nocardiosis, and Nontuberculous Mycobacterial Lung Disease. Dr. Saddler is board certified in Infectious Diseases and Internal Medicine. Dr. Saddler is currently accepting new patients.

William D. Timm, MD, is a board-certified, independent infectious disease specialist at Ascension Wisconsin in Brookfield, WI. He diagnoses, treats and manages rare and complex infections. Dr. Timm has a special interest in SARS, ebola, hepatitis A, HIV/AIDS, and tuberculosis (TB). He also provides contact tracing to determine the source of the infection and potential spread of many diseases, including diseases spread by parasites, such as malaria, rocky-mountain spotted fever and Lyme disease. Dr. Timm is highly rated in 14 conditions, according to our data. His clinical expertise encompasses Cellulitis, Lymphangitis, Strep Throat, and Infectious Arthritis. Dr. Timm is board certified in The American Board Of Internal Medicine - Infectious Disease and American Board Of Internal Medicine, Infectious Disease. Dr. Timm is currently accepting new patients.

John Christianson is an Infectious Disease provider practicing medicine in Milwaukee, Wisconsin. Dr. Christianson is highly rated in 12 conditions, according to our data. His clinical expertise encompasses Hospital-Acquired Pneumonia, Cellulitis, Infectious Arthritis, and COVID-19. Dr. Christianson is currently accepting new patients.