Clients who can't make it to Crewe are visited by a Mulliner representative.
League One has now lost eight matches in total, with Swindon's game against Stockport, Southend v Crewe and Millwall's visit to Cheltenham all called off yesterday.
He will not join the Queen on a visit to Crewe on Thursday, but is expected to visit the Olympic Park in east London on Friday.
Admitted as a day patient at an undisclosed hospital, the duke missed an evening dinner engagement in the City and a subsequent royal visit to Crewe.
Carlisle United have re-signed striker Joe Garner from Watford on a 28-day loan deal, in time for Tuesday's League One visit of Crewe Alexandra.
Speaking on a visit to a hospital in Crewe, Cheshire, Mr Miliband said: "What we're promising is that everybody should get a same-day consultation with their GP surgery and, if they've got an urgent situation, see a GP - and then a guaranteed appointment within 48 hours.
Crewe, who have also enjoyed three past visits to Wembley, have a much more recent memory of getting to the national stadium, having won the League Two play-off final there in May.
Crewe Alexandra were beaten in the club's first visit to Wembley Stadium in a 5 3 penalty shoot-out victory in the Final.
The former Crewe and Wigan man is available for Saturday's League One visit of Walsall.
After doing pioneering work on particle accelerators in England in the early 1950s, Dr. Crewe was invited to the University of Chicago in 1955 as a visiting research associate.
