The Dallas Morning News reports in its Sunday edition that a number of north Texas doctors are planning to drop out of Medicaid because the government is expanding the scope of the program while at the same time it reduces reimbursements paid to the doctors who provide the care.  The newspaper says only about 15,000 of the state’s 48,000 practicing physicians are active in Medicaid, and the number has steadily declined over the past two decades.  State lawmakers, meanwhile, have told the Morning News their problem is they have to deal with an $18 billion budget shortfall.  Medicaid covers more than 3 million poor, and the paper says many of them have no where else to go.