Even though digital health information company WebMD (WBMD) now says it's not "in any negotiations to be acquired," a potential suitor like Walgreens Boots Alliance or UnitedHealth Group UNH +0.09% would still make some sense if either has the desire to spend the money.

The news of potential bidders comes as large healthcare corporations like Walgreens and UnitedHealth have been making big investments in digital health, seeing information about illnesses, preventive medical care and wellness as critical to controlling healthcare costs.