Mark Kehrberg, M.D., M.S., F.A.A.P.
Chief Medical Officer and Senior Vice President
Affinity Health System
Mercy Medical Center
500 South Oakwood Road
Oshkosh WI 54904
(920) 223-0503
mkehrber@affinityhealth.org
Margaret (Peg) Schiek, Director
Medical Staff Services
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2064
F (920) 223-2070
pschiek@affinityhealth.org
Jennifer Koponen, Supervisor
Medical Staff Services
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2062
F (920) 223-2070
jvanderp@affinityhealth.org
Affinity Health System Credentials Verification Office
Mary Lehr, Medical Staff Coordinator
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2067
F (920) 223-2070
mlehr@affinityhealth.org
Deb Moede, Medical Staff Coordinator
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2068
F (920) 223-2070
dmoede@affinityhealth.org
Angella Gelhar, Credentialing Specialist
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2065
F (920) 223-2070
agelhar@affinityhealth.org
Sarah Joyce, Clerical Assistant
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2069
F (920) 223-2070
sjoyce@affinityhealth.org
Affinity Health System Sites
Heidi Kruzitski, Medical Staff Coordinator
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2063
F (920) 223-2070
hkruzits@affinityhealth.org
Ellen Verstegen, Administrative Assistant
Calumet Medical Center
614 Memorial Drive
Chilton, WI 53014
P (920) 849-2386 ext. 212
F (920) 849-7510
eversteg@affinityhealth.org
Carole Carow, Medical Staff Coordinator
Mercy Medical Center
500 S Oakwood Road
Oshkosh, WI 54904
P (920) 223-0275
F (920) 223-0283
ccarow@affinityhealth.org
Cathy Wilbur, Medical Staff Coordinator
St. Elizabeth Hospital
1506 S Oneida Street
Appleton, WI 54915
P (920) 223-2068
F (920) 223-2070
cwilbur@affinityhealth.org
Network Health Plan/Network Health Insurance Company
Justine Marohn, Medical Staff Coordinator
Affinity Health System
2700 W 9th Avenue, Ste 209
Oshkosh, WI 54904
P (920) 223-2066
F (920) 223-2070
jmarohn@affinityhealth.org
Please contact Cathy Wilbur for changes or revisions at cwilbur@affinityhealth.org.
