50 Bellefontaine St, Ste 101

Pasadena, CA 91105

Inside the Cotton North Medical Building at 50 Bellefontaine Street, Suite 101, in Pasadena, California, this Quest Diagnostics patient service center is open six days a week. Parking is available behind the building on Alassandro Place — note that a parking fee applies (max $5.00, no validations). It's part of Superpower's partnership with more than 2,000 Quest locations across the nation.