(1 days ago) The current location address for Memorial Healthcare is 1975 W M 21, Ste 102, Owosso, Michigan and the contact number is 989-723-5211 and fax number is 989-723-5274. The mailing address for Memorial Healthcare is 826 W King St, , Owosso, Michigan - 48867-2120 (mailing address contact number - 989-723-5211). Agency Profile Details:.