O'Fallon-Highway K 

1101 Hwy K
O’Fallon, MO 63366

Family Medicine
Ph: 636-379-6363
Fax: 636-379-0584
Michael P. Hemmersmeier, DO
Leonard M. Hoffmann, MD
Wan-In Koo, DO
Maryam Naemi, DO
Chandra Wiewel, MD
Dawn Matschiner, APRN, BC
  Certified Nurse Practitioner
Jen Schallert, NP-C   
Certified Nurse Practitioner
Ruth Turner, APRN, FNP-C
  Certified Nurse Practitioner

 

Ob/Gyn
Ph: 636-379-6363
Fax: 636-379-1297
Christine Cortadillo, DO
Erica Melrose, DO
Scott G. Williams, MD
P. Douglas Young Jr., MD
Tiffany Flaherty, RN, MSN, FNP
  Certified Nurse Practitioner

Podiatry
Ph: 636-379-6363
Fax: 636-379-0584
R Randal Aaranson, DPM