Walmart has filed paperwork to operate its healthcare business in 37 states, Insider reported July 19.

It's unclear how widely telehealth services will be used once the pandemic subsides, but companies are remaining active in their efforts to grow their telehealth businesses. Below are updates on how nine companies are expanding their telehealth business, as covered by Becker's Hospital Review during the past three months.

Amazon Care, the e-commerce giant's new healthcare venture, has approached several big health insurers in an effort to expand coverage of its services, Insider reported July 7. 

From the departure of its CEO to losing a key artificial intelligence innovator, Amazon has lost several executives leading its healthcare venture.

An Amazon executive who oversees some of its healthcare initiatives said the tech giant is respectful of large players, but a healthy industry has competition, according to a June 9 report by Insider.

Amazon has secured multiple companies as clients for its telehealth service, Amazon Care, CNBC reported June 9. 

Walmart Health's primary care medical group has filed paperwork to expand virtual care in 16 more states, Insider reported June 7. 

As employers look to curb their share of increasing healthcare costs, many may be attracted to healthcare offerings that charge them based on how many employees actually use the service, according to a May 6 report from eMarketer.

Walmart Health has entered an agreement to acquire on-demand, multispecialty telehealth provider MeMD, the retailer said May 6.

Amazon Care, the e-commerce giant's new healthcare venture, has signed its first enterprise client, Insider reported May 5.

CVS and other pharmacy retail chains have been revamping their businesses in recent years to meet consumer demands for better healthcare access and convenience.

Microsoft will buy speech recognition company Nuance Communications in an all-cash transaction valued at $19.7 billion, including debt assumption, the company announced April 12. 

Amazon has surpassed milestones in its expansion into the healthcare sector. Unlike traditional healthcare organizations, the company's virtual care pilot, Amazon Care, adopted a unique business model. Here are eight things that make Amazon Care different from traditional healthcare organizations.

Amazon continues to push into healthcare by expanding its telemedicine program nationally, opening more health centers and providing assistance for COVID-19 testing and vaccination efforts.

Amazon is rolling out its virtual medical service Amazon Care for its employees in all 50 states and Washington, D.C., this summer, with plans to expand the offering to other employers later this year, according to a March 17 news release. 

Walmart has continued to grow its presence in healthcare over the past few years, with expansions of its primary care clinics and the launch of its new insurance arm.

In the past decade, giant retailers and startups alike have tried to disrupt traditional healthcare delivery by increasing patient access and convenience, with varying levels of success.

From making telemedicine more consumer friendly to increasing access to care during the pandemic, retail giants including Amazon, Walmart and Walgreens are ramping up their virtual care initiatives and innovating the healthcare delivery system. 

Amazon wants to provide online and in-person primary care for other large employers, people familiar with its plan told Business Insider.

Apple CEO Tim Cook expects the tech giant's devices and developments in healthcare and wellness to account for the company's overall greatest contributions.