There aren't too many willing to voluntarily go out to spend the day on Skid Row. According to Good News Network, Dr. Kwane Stewart, also known as "The Street Vet" is nearly famous because he runs the 501(c)3 non-profit Project Street Vet, that takes donations and volunteers out onto the streets and to homeless encampments to provide free medical care for their pets. Last year they were able to help nearly 600 animas receive medical care.
Charity organizations partner with animal clinics and Project Street Vet to open pop-up clinics where the homeless can bring in their pets for even more sophisticated medical care, as well as assists qualified pet parents with their pet's veterinary care through financial assistance grants. They rely entirely on charitable contributions, and anyone who wants to donate time or money can do so by checking out ProjectStreetVet.org/get-involved.