Walmart unveiled its first health center in 2019, offering a variety of services that include primary care, lab, X‑Ray, EKG, counseling, dental, optical, hearing and community health. All pricing is low (naturally) and transparent (unnaturally). Walmart is now expanding their model across several sites, with a lot more to go (given that they have 5,000 stores nationwide).
Walmart is not limiting its efforts to in store services. They also just announced their acquisition of MeMD, a leader in telehealth (also known as virtual health).
Finally, don’t forget that Walmart, as with a few other major pharmacy retailers, provide a large list of $4 drugs.