Today is the grand opening of the Washtenaw Urgent Care center in Ann Arbor, the 10th urgent care center operated by Mohammed Arsiwala, an internist who owns Livonia-based Michigan Urgent Care Centers.

Like the nine other centers, Washtenaw Urgent Care, at 3280 Washtenaw Ave., is open 8 a.m.-10 p.m. seven days a week. Arsiwala's other centers are in Livonia, Canton Township, Gross Pointe Woods, Novi, Dundee and four in Detroit.