Bloomberg reports that PartnersHealth Care, which operates hospitals including Brigham & Women's and Massachusetts General, is seeking $420 million to refinance debt and improve its electronic medical records system.

Partners, a Boston-based nonprofit that has two hospitals affiliated with Harvard University, will complete the sale of about $270 million of fixed-rate securities today and is also offering $150 million of variable-rate debt this month, according to Debra Sloan, deputy treasurer. The tax-exempt securities are being sold through the Massachusetts Development Finance Agency.