Washington, DC-based Sibley Memorial Hospital and Johns Hopkins Health are in talks to have Sibley become a subsidiary of the Baltimore-based health system, officials announced. The development will give the $4.5 billion Hopkins system a greater presence in the Washington, DC, region, with a foothold in a part of affluent Washington where patients have insurance. Officials of both systems say it is anticipated that Sibley will join Johns Hopkins Health in early fall. Sibley spokeswoman Sheliah Roy said the nonprofit, 328-bed hospital is not being sold and will stay open.