Emergency Medical Services 405 W. Fifth Street Suite 301A Santa Ana, CA 92701 (714) 834-3500 Contact Information Health Disaster Management Division 405 W. Fifth Street, Suite 301A Santa Ana, CA 92701 Phone: 1-(714)-834-3500 Fax: 1-(714)-834-3125 Holly Veale Division Manager hveale@ochca.com 1-(714)-834-3500 Greg Boswell, RN Program Manager Emergency Medical Services (EMS) gboswell@ochca.com 1-(714)-834-2791 Erik Lowman Program Manager Healthcare Preparedness/Grant Management elowman@ochca.com 1-(714)-834-6281 John Van Sky, Ph.D. Program Manager Healthcare Training/Response Emergency jvansky@ochca.com 1-(714)-834-6587 Business Hours 8:00 a.m. to 5:00 p.m. M - F Certification/Accreditation Hours 8:00 a.m. to 4:30 p.m. M - F Map