Billionaire Patrick Soon-Shiong’s health care IT firm NantHealth announced Thursday it has acquired Harris Healthcare Solutions. Terms of the deal were not disclosed, though Soon-Shiong said it is his firm’s largest acquisition to date.

He previously hinted the deal could be the last transaction before NantHealth goes public.

Harris’ technology enables health care organizations to integrate data from different sources to give a more complete view of patient information, a big IT challenge in the medical world.

NantHealth aims to use patients’ genetic information to craft personalized cancer treatment plans. The firm wants to enable patients, physicians, insurers and others to coordinate that care, provide access to clinical trials, monitor outcomes and control costs in real time.

The acquisition should help NantHealth integrate those systems.

“The acquisition of Harris Healthcare Solutions, our largest transaction to date, brings unique and proven technology with a large global footprint that significantly furthers our stated goal to improve patient outcomes by efficiently providing physicians with integrated, clinically relevant patient-centric information in real-time,” Soon-Shiong said.

Harris, based in Herndon, Va., already works with health systems such as Kaiser Permanente and Cleveland Clinic. The deal will give NantHealth 170 new employees in Cleveland, Phoenix, London, Washington, D.C., and Melbourne, Fla.

The deal follows last month’s announcement that electronic medical records provider Allscripts Healthcare Solutions Inc. had taken a 10 percent stake in NantHealth for $200 million, valuing the NantWorks subsidiary at $2 billion.

At the time, Soon-Shiong didn’t mention Harris by name, but told the Business Journal that after a forthcoming global infrastructure deal, he felt “pretty confident” NantHealth would be ready to go public before year’s end.

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