The headlines were ominous: Good luck finding a doctor under Obamacare. Not enough doctors for newly insured. Obamacare, doctor shortage could crash health system. Despite these dire predictions, the nation's primary care system is handling the increased number of insured patients without major problems so far, according to interviews with community health centers, large physician practices and insurers nationwide. Five months into the biggest expansion of health coverage in 50 years — with about 13 million people enrolled in private insurance and Medicaid under the Affordable Care Act — there are few reports of patients facing major delays getting care, say officials from more than two dozen health centers and multi-group practices, as well as insurers and physician groups in nine big states.