Walmart has opened another medical clinic; this one in Georgia. Besides providing primary care, which they have done in Texas, South Carolina and other Georgia locations (Care Clinic), the new clinic will also offer mental health coverage. All the clinics provide immunizations, lab tests and medical consultations. The mental health aspect is something new and will be interesting to keep an eye on.
Walmart is already one of the largest pharmacy companies in the U.S., with in-store sections for pharmacy in all 4,700 US locations.
Amazon is also competing with Walmart now, having just opened a primary care clinic at its main office in Seattle (and last year acquired the online pharmacy PillPack).