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Contact Us

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To contact individual employees by phone or email, visit the Staff Directory. The Washtenaw County Health Department is open Monday through Friday, 8:30 am to 5:00 pm, except County holidays. Please visit for bus schedules.

Washtenaw County Health Department
Human Services Building
555 Towner Street
Ypsilanti, MI 48198

Phone: 734-544-6700
Fax: 734-544-6705

Towner building
Environmental Health Division
Western Service Center
705 N. Zeeb Road - PO Box 8645
Ann Arbor, MI 48103

Phone: 734-222-3800
Fax: 734-544-3930

Zeeb building
Washtenaw County Dental Clinic
Saint Joseph Mercy Haab Health Building
111 N. Huron Street, Ypsilanti

Registration: 877-313-6232
Phone: 734-480-4250
Haab Building Horizontal

Main Phone Numbers for Washtenaw County Health Department

Sexual Health Services - HIV & STI Testing 734-544-6840
Communicable Disease Program* 734-544-6700
Children's Special Health Care Services 734-544-9700 
Environmental Health Division 734-222-3800
Dental Clinic 
877-313-6232 registration
Hearing and Vision Program 734-544-6786
Home Toxics Collection Center 734-222-3950
Maternal Infant Health Program  734-544-2984
Media inquires, please contact Susan Cerniglia  734-544-6759
Washtenaw County Health Department, main number 734-544-6700
Washtenaw Health Plan 734-544-3030
WIC (Women, Infants & Children) 734-544-6800
*If you are a medical provider and you need to report a communicable disease or other public health emergency after hours or on a holiday, please call 734-544-6700 for instructions. If you are having a medical emergency, please call 9-1-1.

Other Washtenaw County Phone Numbers

Community Mental Health (24/7 mental health, substance abuse
information and services for Washtenaw residents)
Washtenaw County, hearing impaired  734-994-1733 
Washtenaw County, information line  734-222-4357
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