
Main Office
Phone: 845-338-1535
Fax: 845-338-0301
Admin@GSMAdoc.com
West Wing
Phone: 845-334-9951
Fax: 845-338-7092
Oncology
Phone: 845-334-9920
Fax: 845-334-9894
Gastroenterology
Phone: 845-338-2300
Fax: 845-338-9711
Billing Inquiries
Phone: 845-338-2706
Fax: 845-334-9879
Prescription Refills
Phone: 845-338-1535
Fax: 845-338-0301
Insurance Questions
Phone: 845-338-1535
Fax: 845-334-9879