Skip to main content
MenuSearch & Directory

Section of Ambulatory Medicine

Our faculty members are leaders at Saint Louis University, as well as national leaders in medical ethics, medical education, hospital medicine and primary care.

In line with the Saint Louis University Jesuit mission of cura personalis, our faculty and nurse practitioners care for the whole person. In addition to primary care, we offer specialized clinics focused on our patients’ acute care needs and their transitions between hospital and home. Our team-based care approach allows us to create an individualized care plan for each patient while addressing the overarching needs of the populations we serve. 

Education is a central tenet of academic general internal medicine. With our SLU medical students, our faculty routinely precept and teach fourth-year medical students in faculty continuity clinics and acute care clinics. Our internal medicine residents, with the guidance and support of our GIM faculty physicians, provide cutting-edge, evidence-based care to their patients in their Residency Continuity Clinic and Acute Care clinics.


Philip Vaidyan, M.D., FACP
Associate Professor of Medicine
Division Director, General Internal Medicine

Nancy Z. Delaney, M.D.
Student Health and Counseling Center

Kyle E. Karches, M.D., M.A.
Associate Professor

Paul Kunnath, M.D.
Assistant Professor

Marilyn Maxwell, M.D.
Professor of Medicine and Pediatrics

Thomas Olsen, M.D., MACP
Professor of Medicine
Medical Director, Student Health and Counseling Center

Nora L. Porter, M.D., M.P.H., FACP, FAAP
Professor of Medicine and Pediatrics
Co-Director, Internal Medicine Clerkship

Awais Raza, M.D. 
Clinical Instructor of Medicine
A.B.I.M. Certified 

Anne Walentik, D.O., M.P.H.
Assistant Professor of Medicine and Pediatrics

F. Gerald Wade, M.D.
Assistant Professor
Section Chief, Ambulatory Medicine
Medical Director of the Bridge Clinic

Nurse Practitioners

Felicia Isbell, A.N.P.

Megan Land, F.N.P.-C

Donna Person F.N.P.-B.C.

Marcella Petzchen, A.N.P

Sean Patrick Riley, A.G.N.P

Yulia Thomas, A.G.A.C.N.P.-B.C.


Lisa Rowold
Administrative Assistant