Contact

For information about OSI, call:
Corporate Headquarters: (631) 962-2000
Medical Information: (800) 572-1932

E-mail contacts:
Investor Information    investor_info@osip.com
Business Development    bizdev@osip.com
(OSI) Prosidion General Information    info@prosidion.com
(OSI) Prosidion Careers    recruitment@prosidion.com
Medical Information    Medical Information Form
Careers    Career Opportunities

Corporate Headquarters:
OSI Pharmaceuticals, Inc.

41 Pinelawn Road
Melville, NY 11747
Phone: (631) 962-2000
Fax: (631) 752-3880
Driving Directions

Farmingdale
1 Bioscience Park Drive
Farmingdale, NY 11735
Phone: (631) 962-0600
Fax: (631) 845-5671
Driving Directions
Boulder
2860 Wilderness Place
Boulder, CO 80301
Phone: (303) 546-7600
Fax: (303) 444-0672
Driving Directions
 
Cedar Knolls
140 East Hanover Avenue
Cedar Knolls, NJ 07927
Phone: (973) 539-6009
Fax: (973) 539-9661
Driving Directions
 
United Kingdom
Watlington Road
Oxford, OX4 6LT, U.K.
Phone: 44-1865-780-800
Fax: 44-1865-780-801
Driving Directions

Request E-mail Alerts
E-mail alerts are messages that are conveniently delivered to your e-mail box whenever certain new company information is posted to this site.
Click here to receive OSI Pharmaceuticals, Inc. e-mail alerts.