I am not aware of GPs giving blanket refusals to see medical card holders. General practice has continued to operate during the Covid-19 public health emergency and GPs see patients face to face where necessary, albeit with infection-control measures in place.
In response to the pandemic, it has been necessary for GPs to triage patient in-person contact with GP surgeries as much as possible, to help prevent the spread of the Covid-19 virus and for the protection of patients and staff. GPs are performing assessments over the phone to determine if a patient needs to attend the surgery or whether a remote phone consultation is suitable. Where clinically indicated, the GP will arrange an appointment to see the patient in the surgery.