Mercy Network
Mercy Family Medicine Residency
101 S. Taylor Mason City, Iowa 50401
Phone: 641.422.7766
Fax: 641.422.7788
Providers:
W. David Clark, M.D.
Abby Dettmer, D.O.
Tara W. Geis, M.D.
David Hanson, M.D.
Harrison Hanson, M.D.
Scott Henderson, M.D.
David Hochhalter, M.D.
Jonathan Howard, M.D.
Julie Howard, D.O.
Jill Johnson, D.O.
Marc Jones, DO
Toni Lauffer, D.O.
Alan Li, M.D.
Nigel Millard, D.O.
Tracy Mixdorf, DO
Keri Orstad, M.D.
Christopher Schimming, MD
Jinming Song, MD
John
Swisher, DO
Rachel Venteicher, DO
Jeffrey Tanzi, D.O.
Matthew Thompson , D.O.
Jerrold White, M.D.
Amanda Young, DO
Office Hours:
8:00 a.m. to 5:00 p.m., Monday – Friday
Services:
- Primary care
- OB Care
- Colposcopy
- Laboratory
- Fracture Care
- Lesion Removal
- EKG
After office hours call Mercy Family Health Line at 641.422.7777 or 1.800.468.0050. In case of an emergency, please call 911or your local emergency telephone number, or go to your nearest Emergency Center.
To have your questions answered after your visit, please call the clinic and leave a message if the nurse is not readily available.


