Billionaire John Paulson added to the healthcare and energy holdings of his hedge fund in the fourth quarter, acquiring stakes in companies such as Medtronic Inc. and Transocean Ltd.

Paulson & Co., the New York based money-management firm, reported in a Form 13F filed yesterday that it bought new stakes in three medical device and pharmaceutical companies during the period. The holdings, which had a total value of $824 million as of Dec. 31, included shares in Medtronic Inc., Teva Pharmaceutical Industries Ltd. and Baxter International Inc.

Medtronic is a Minneapolis-based manufacturer of pacemakers and defibrillators, while Teva, with headquarters in Petah Tikva, Israel, is the world’s largest maker of generic drugs. Baxter, in Deerfield, Illinois, makes products for people with hemophilia, immune disorders, kidney disease and other medical conditions.

In the energy sector, Paulson reported buying 7.2 million Transocean shares with a market value of $500 million as of Dec. 31. Transocean, the world’s largest offshore driller, owned the Deepwater rig that exploded in the Gulf of Mexico in April.

The hedge fund acquired a $128 million stake in Walter Energy Inc., a Tampa-based coal-mining company, during the quarter, according to yesterday’s filing. Paulson raised its holding in The Woodlands, Texas-based Anadarko Petroleum Corp. to 21.3 million shares from 13.4 million shares as of Sept. 30.