MSO of Puerto Rico, Inc. (MSO) is Puerto Rico's leading administrative medical service organization, offering support to 27 medical groups and healthcare organizations throughout the Island.  A partner to Medicare Advantage plans MMM Healthcare, Inc. and PMC Medicare Choice, Inc., MSO helps providers streamline operations so that they achieve financial and organizational efficiency and, most importantly, provide high-quality patient care experiences.  

MSO is part of the Aveta Inc. family of companies – one of the largest providers of managed healthcare services in the United States.  Redefining healthcare management to meet the challenges of today's complex healthcare environment, Aveta develops innovative models that coordinate care for more than 230,000 Medicare beneficiaries and more than 330,000 commercial members, Aveta builds provider networks and Medicare Advantage programs that are sustainable, cost-effective and utilize advanced technologies.  The company is headquartered in Fort Lee, New Jersey, and currently has operating subsidiaries inCalifornia, Illinois, Arizona and Puerto Rico.