In November, Amazon announced a new service called Amazon Comprehend Medical, which aims to help hospitals, insurers, and pharmaceutical companies analyze their health-record data.

The move dropped Amazon into the $300 billion healthcare-digitization market amid stiff competition from health-information-technology giants like Optum, Epic, and Cerner.

It has analysts mulling over whether Amazon could truly disrupt the market or if the incumbents can hold out.

Amazon's ambitions in healthcare have the entire $3 trillion industry on edge, waiting to see exactly how the juggernaut is planning to jump in.

It's already sent shockwaves through the healthcare industry with its acquisition of PillPack in June, its plans for a joint healthcare venture with JPMorgan and Berkshire Hathaway, and its work supplying hospitals with health equipment.

And in November, Amazon announced it would be offering a new service called Amazon Comprehend Medical to hospitals, insurers, and pharmaceutical companies with the hope of helping them analyze their health-record data.

The service will comb through unstructured medical texts from records and pull out information like diagnoses, symptoms, and treatments.

Through the service, Amazon is dipping its toes into the healthcare-digitization market, worth $300 billion, according to analysts from RBC Capital Markets. That means it will be going up against the likes of formidable health-information-technology giants including Cerner, Epic, Optum, Medidata, Veeva, and IQVIA.

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Amazon said in a November news release that the software could help with:

Clinical-decision support, or analyzing a patient's history to help doctors determine what to do next.

Revenue-cycle management, or helping hospitals get paid for their services.

Clinical-trial management, or linking up patients to experimental treatments.

Building population-health platforms.

Helping fulfill privacy requirements.

Amazon, should it get a foothold into those markets, could pick up billions in business.

"We believe that Amazon's customer obsession will likely create material impact on consumers/patients within healthcare," RBC analysts Mark Mahaney and George Hill wrote in a December note. "In that sense, while Amazon could be a major disruptor in healthcare, it will likely be more successful with one part of healthcare over another, and hence it is touching different parts of this category."

Others weren't as convinced Amazon could tap into the health-IT space, particularly given the track record of other big-tech operations like Google Health and Microsoft's HealthVault, both of which ultimately didn't work.

Oppenheimer analysts Mohan Naidu and Mike Ott said hospitals might need resellers to have the support they would need to run the software. Plus, companies like Optum and Cerner have been investing in laying out the groundwork for years, which could make it harder for Amazon to jump in, Cantor Fitzgerald analysts Steven Halper and Kyle Mikson said. To them, the jury's still out on Amazon's healthcare ambitions.

"It remains to be seen whether Amazon's forays into the healthcare industry will be truly disruptive," the analysts wrote in a December note.