John Mark Demay, MD, Dermatology

2930 Hamilton Blvd
Ste 102
Sioux City, IA  51104-2431 (Woodbury County)

Phone: 712-277-9370
Fax: 712-252-4733
Email: llw***@*****ne.net

NPI: 1366447294
License Number: 31906 (IA)