CONTACT  INFORMATION

Greg S. Cohen, MD
Northwestern University Feinberg School of Medicine
Division of Gastroenterology
Department of Medicine
676 N Saint Clair St
Arkes Pavilion 1750
Chicago, IL 60611

Office Manager:
Maritza Ortega
Phone: 312-695-4452
Fax: 312-695-4453
email: maritza@cohengastro.com

For billing or insurance questions contact:
Healthcare Management Systems (HCMS)

Attention: Dr. Greg Cohen
3010 Beard Rd
Napa, CA 94558-3442
707-200-1000