Dealing with Our Infirmities as Seen Dispensationally

Does God today offer healing of our physical infirmities as Jesus of Nazareth was seen to do during His 3-1/2-year ministry on earth unto the Nation Israel (Rom. 15:8, Matt. 15:24)?

Does God today heal as He once did through the Twelve Apostles during the early Acts period before they ceased to be inconsequential as Paul’s ministry was inserted?

If does God today offer healing of our physical infirmities, on what is its basis during today's "dispensation of the grace of God", in which we have His life ever-present in our spirit?