With this move, Apple is trying to tackle a huge problem that the medical community has been grappling with for years.
Even in the digital age, patients find their info cannot be easily shared between doctors, especially among different hospitals or clinics. This information tends to still live in PDF files attached to emails or delivered by fax machine. Those who do have access through so-called "patient portals" sometimes find that the user experience is poor and the information is limited.
This problem is often referred to as the "interoperability crisis" — and it is hurting patients, health experts have said.
The lack of data-sharing between health providers leads to unnecessary mistakes and missed diagnoses, Aneesh Chopra told CNBC. "As health care goes digital, the promise has always been to give patients and the doctors they trust full access to their health information," he said.
Apple in recent months has been involved with discussions with health IT industry groups that are looking for ways to make this goal a reality, two of the people said. These include "The Argonaut Project," a private sector initiative that is promoting the adoption of open standards for health information, and "The Carin Alliance," an organization that is looking to give patients a central role in controlling their own medical data.
Bud Tribble, Apple's vice president of software technology, has been personally involved with the latter group, two of the people said. Tribble is a trained physician with a background in medical research. The Carin Alliance's Ryan Howells declined to comment on Tribble's participation.
The company has also hired some of the top developers involved with FHIR, an increasingly popular protocol for exchanging electronic health records. These people include Sean Moore, an Apple software engineer who previously worked at medical records giant Epic Systems, and Ricky Bloomfield, a physician from Duke University with a background in medical informatics.
Google and Microsoft have tried, but failed
Other technology giants have attempted to solve the problem through their own web-based patient health record services, but have failed. Google shut down its initial product, Google Health, in 2011 due to a lack of traction.
"At any given time, only about 10 to 15 percent of patients care about this stuff," said Micky Tripathi, president and CEO of the Massachusetts eHealth Collaborative and a health IT expert. Managing health information tends to be top of mind only for those who are chronically ill or obsessed with their health.
"If any company can figure out engagement, it's Apple," added Tripathi, who said he didn't have any knowledge of Apple's strategy.
It might have also been too early for an effort like Google Health to succeed. Since then, Mostashari said, policymakers pushed for technical standards among electronic medical records to promote data-sharing.
Apple also has other edges. The majority of doctors use iOS, and Apple has more than 1 billion active devices around the globe, which hospitals and developers are looking for new ways to reach. And it has made data privacy and security a priority in recent years.
Apple's other plans in health include a sensor to noninvasively track blood glucose, CNBC previously reported. It has also made some notable hires from the medical sector of late, including a rising star of Stanford University's digital health efforts, Sumbul Desai, also reported by CNBC.
Apple declined to comment on this report.