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Michigan Health & Hospital Association Service Corporation

Data Services

2112 University Park Drive

Okemos, MI 48864

(877) 999-4653

Client support is available 9 a.m. to 5 p.m. Eastern, Monday through Friday.

2019 Holiday Calendar

January 1 New Year's Day Holiday Office Closed
January 21 Martin Luther King Jr. Day Office Closed
February 18 President's Day Office Closed
May 27 Memorial Holiday Office Closed
July 4 - 5 Observing Independence Day Office Closed
September 2 Labor Day Office Closed
November 28 - 29 Thanksgiving Holiday Office Closed
December 24 - 25 Christmas Holiday Office Closed
December 31 New Year's Eve Office Closed
January 1, 2020 New Year's Day Office Closed


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