Was on a WN flight that a passenger two rows in front of me had a medical problem. FA paged for a doctor on board and just so happened an ER doc was sitting next to me. He talked with the passenger and it was determined it was not life threatening and since the flight only had about 35 minutes left it was decided to continue to destination. On final descent, FA announced that paramedics would be coming on board first and escort the passenger. On arrival to the gate, paramedics were already waiting, came on board and escorted passenger under her own power to the jetway where she was placed on a gurney. Very well handled by all and did not disrupt or lengthen the deplaning process.